The water will then be at the correct temperature. The boiler will function as expected, except the return temperature will remain below 120°F for 20 minutes or more. See instruction video. I have a weil-mclain HE II boiler that has a flashing red light on the "valve" setting on the control module. I know I have to open some valves somewhere but I'm not sure what these valves look like and where they are. The "heating" and "open" flashing light indicates that the problem might be the ignition or flame failure, the GAHH-50 model reached the maximum number of retries so it is … Have a primary condensing boiler. The water pressure was between .25 to 1, I got a plumber out & he increased the bar to 2, in the hope it might blast out whatever the problem is. If there is no problem with the mains water supply, check that the inlet solenoid valve is working. 0 to 0.5 is coloured red 0.5 to 2.5 is green above 2.5 is red. To reset the boiler, simply press the reset button until the red light goes away. Failing this replace PCB board 1600345 for Ecoboiler range. Every time I do try reset it it chugs for about a minute and then goes back to flashing red. This checks that the temperature is increasing when the heater is on. Got him back again, pressure was low, pump light flashing as always. We Design, Manufacture, Sell and Service Precise, Energy-Efficient and Innovative Water Boilers and Coffee Brewing Systems. In certain circumstances, your boiler may lock out. 4: Water not heating: Call service agent: Check heating circuit wiring, all connections secure no burning. In high mass systems (high water volume, cast iron radiators, converted steam systems, etc), a zone valve failed open can provide a large quantity of cold return water to the boiler, preventing it from heating. Q: Is there an update/improvement for my Marco equipment? A: Refer to the installation details of your specific model on individual product pages. On the right hand side there is a gauge. The main burner will light and the boiler will provide central heating. Should be the orange light flashing and one or more green and/or red lights either steady for flashing, dependant on the fault. Switch boiler on. Dispense water via the lever tap(s) on the front of the boiler (CAUTION: Take care as boiler dispenses near-boiling water). With inbuilt safety mechanisms, there is no need to wait and re-boil water time after time with an instant boiling office tap. Wait about 10-20 minutes until the solid light goes off and becomes a slow fading pulse on the tank. Ditch the kettle and save energy and time making the tea round. Every time I do try reset it it chugs for about a minute and then goes back to flashing red. It didn't the the red light keeps coming on (at some stage when heating is on) He thinks the heating exchange is broken and is not letting heat escape from boiler & that is why red light is coming on. Most greenstar a have a flap and most of these are lowered by pushing at the join of the flap two thirds of the way from the top. Q: What are the dimensions of my Marco product? Red Flashing Light On Worcester Boiler 24i Junior: the other day on the phone we where told to put a hot water bottle or pour some hot water on the pipe, today the engineer got it working but tonight the light started flashing again so I pressed the reset button to try to light the boiler again. We use cookies to give you the best possible experience on our website. Check water pressure. 1 to show the radiators are on, 1 for the hot water, and the third light is showing when the hot water is firing up. bibi May 2011 If within resistance range and wiring circuit is ok, replace main PCB 1600345 for Ecoboiler range. The Cause: ... Hello, I hope you can help, I have a worcester 28i junior boiler and for 3 months now it just keeps cutting off and the red light starts flashing. The element cannot switch on until a safe level of water is reached. 7.0 - CLEANING Clean the external surfaces of the boiler with a damp cloth to maintain hygiene. Check temp sensor( red cable entering the tank part No 1600691) is securely fixed to PCB and that the cable is inserted fully into the boiler tank hole with heat paste present. I've just come back from a night shift and it's flashing meaning I've got no hot water or heating. There is definitely gas on and the pressure is fine. Hot water does not work and would welcome ideas to rectify. (1 degree per minute), the inlet solenoid is switched off and the 6 flash cycle is displayed. A: Refer to the spec sheets of your specific model on individual product pages. When I put dial selector on heating setting the boiler is trying repeatedly to fire up but noting happens. The element may have failed and the unit is cooling down. Vokèra Red Light Causes. I go to the basement and see that we still have 1/2 a tank of oil. ---Water BoilersCold Water DispensersCoffee Brewers. Water pressure is ok. Normal fan noises coming from boiler. Mains water pressure problem or the mains water stop valve is closed. When the error is detected, the element and inlet valve are turned off. This heat fill cycle continues until the boiler is full. The machine needs to be reset when this problem is solved. (Can be flashing for up to 2 min at start up), The low level probe wire is disconnected, or there is another wiring fault (eg. The causes of an oil boiler lockout vary. If your timer is calling for heat, the burner light will come on to indicate the boiler has fired up and is heating your system. This is identified by the Red Lockout light constantly illuminated or flashing. My 92 year old Gran has a Worcester 24Si II Boiler for about 9 years and when I switch the heating on after about 30 secs the Red Light starts flashing fast. This checks that the water in the tank is cooled by when the inlet solenoid valve is opened. The hot water keeps running hottish (cooler than usual) for about 1 minute then cold for about 1 minute then goes hot again and so on. This indicates that the Thermistor is measuring zero resistance. The Cause: If your boiler lockout light is flashing, ... Common Fault 5: Water isn’t getting hot. However, should you see a red light on its own or alongside the green light then there’s a potential fault with the boiler. It is driving me mad now. When the correct range of resistance is measured, normal operation resumes. Electronic control display on your AO Smith water heater is a very neat feature. Check heating element resistance with machine plugged out of mains socket is reading 18-22 Ohms. (Note: Temporary loss of water pressure can occur in certain sites – particularly when various machines are plumbed to the same mains water supply.) Faulty element. If you have a Worcester Greenstar Ri boiler and the blue light is pulsing rather than flashing then the boiler is in service mode. a bad earth (return) connection between the PCB and the Tank). Boiler reset button keeps flashing red Sifter22 Posts: 9,918. Tinkered with pump and got it going. If the boiler fails to light or the boiler is running and the gas is turned off, the LED will start to flash red. the probe is not in contact with the water. It assumes the thermistor has failed sort circuit. The “power on” light will glow green and the machine will fill to a safe level, above the elements, before heating. ---Coffee RoasterCoffee Shop OwnerEquipment Supplier/DistributorFacilities Management CompanyDesigner/SpecifierFoodservice/Hospitality ProfessionalCatering Company, Interested In (required) Your Country (required) Check in the manual: How do I raise the pressure? Power light is on. Option 2: (2 Hours/OFF) Boiling and chilled water temperature will gradually drop to room temperature after 2 hours of inactivity. Pandemic beckons new era of touch-free workplaces. Water level below elements. flashing: appliance supplying hot water (hot tap on) or appliance pre-heating/warmstart mode at the moment. If this water temperature has not decreased by the required amount. There are 3 lights on the front. When I switch it off and reset biker it is fine for the hot water only. When the correct range of resistance is measured, normal operation resumes. Hot water not working and red light flashing? See pictures attached. Pre-heat or warmstart as Vaillant like to call it, is disabled by turning the hot water temperature knob fully anti-clockwise till the green light goes out, then back to your desired temperature (usually around '1 O'Clock' position). Check for kinks in hose and inlet valve is switched to open position. marco, marco water boiler, water boiler Check that the water pressure is OK and ensure that the stop valve is open. Afterwards, I see that it's still cold. A red light is flashing saying 0.4 bar which I assume means low pressure. Check heating circuit wiring, all connections secure no burning. A: From time to time Marco makes changes/ updates to the model range and releases Technical Bulletins. Check water pressure. Hi My Sabre combi boiler (less than a year old) cut out last night, and I have no hot water or heating. i had a boiler fitted about 18 months ago in a house i was renovating. Wait for the GREEN LIGHT. Warning: If the LED is flashing Red rapidly the Now we've lost all hot water in radiators and taps. The element is switched OFF at this stage and the inlet is left ON. Identify water level probes – flat metal tabs inside water tank, normally 2 or 3 probes Dispense as much water from unit as possible using tap Thoroughly clean probes with ScotchBrite or scouring pad Replace tank lid and top cover Reconnect power to boiler and operate as normal. This error is only displayed after 20 mins of the heater being on continuously. Replace thermistor connected to PCB. This is called the tank’s “heartbeat” and indicates that the water is now up to temperature again and ready for use. Check that the resistance on the elements. Option 3: (Lux Sensor/68˚C) Boiling water temperature will gradually drop to 68˚ when the unit senses it has become dark in the room. The element and inlet valve are turned OFF when this error is detected, This is a recoverable error. 7. The status indicator light is on red; I reset the boiler, it fires up for a few seconds, the light is green, then it cuts of and the light stays red. Round temperature light (30degree) is flashing. But the other two lights are showing as if … I have tried resetting & powering off but this didn't work. I have a potterton boiler. Replace thermistor. Pressure was low, so adjusted that and woo hoo - hot water & heating worked again - for a couple of days. Check thermal overload switch where fitted is pressed inward. How do I - Answered by a verified HVAC Technician. If water is well below 98 degrees and the ready light on the front of the machine is a solid colour, this may be the fault. I press and hold the reset button, let it go and the boiler starts up. Check temp sensor( red cable entering the tank part No 1600691) is securely fixed to PCB and that the cable is inserted fully into the boiler tank hole with heat paste present. This checks that the water in the tank cools when the inlet solenoid valve is switched on. I turned up the thermostat (even though it was already up) and took a hot shower. Check water pressure. 07 Oct 2020. Here we have a Potterton boiler with a flashing red light (PCB fault). Free Chat Close the tap and the burner will go out. Q: Why is the 'ready' status light flashing red? If problem reoccurs – call service agent. Click. Low level probe has scale or mineral deposits on the low level probe metal tab preventing a reading of the water level. I have to push it back in for up to 2 mins at a time in the hope it restarts. A: Refer to the spare parts details of your specific model on individual product pages. The hot water works fine its just when I try to switch heating on. It keeps trying. if a closed mains water stop valve is the problem, opening the valve will allow water into the machine and normal function will resume when the low level probe is reached), The water level is below the low level probe, which is normal when the machine fills for the first time. Boiler factory All rights reserved. Clean low level probe with scotch brite. Copyright © 2020. I have a British Gas C1 boiler. i have had all the radiators off while decorating and only just got round to putting the radiators back on and trying to get the heating to work as soon as i try the heating or hot water, the red 60 light starts flashing … I have a Procombe 100 He boiler, which was fitted in 2008 there have been no issues with the boiler since it was fitted until now. There are no leaks anywhere I … BTW the red A light flashing means your boiler has overheated B flashing on that boiler is usually the hot water sensor (I Think). There are 2 possible reasons why this could be the case: your Worcester Ri boiler has recently been serviced and left in service mode or the switch has been knocked (it’s not uncommon to do this accidentally). Older boilers can be more prone to boiler lockout due to general wear and tear and neglected boilers can lockout because they have not been adequately serviced or maintained . Normal when machine first fills. A solid red light should appear on the tap and tank. A flashing red or green light, or an illuminated orange light. ---ArubaAfghanistanAngolaAnguillaÅland IslandsAlbaniaAndorraUnited Arab EmiratesArgentinaArmeniaAmerican SamoaAntarcticaFrench Southern TerritoriesAntigua and BarbudaAustraliaAustriaAzerbaijanBurundiBelgiumBeninBonaire, Sint Eustatius and SabaBurkina FasoBangladeshBulgariaBahrainBahamasBosnia and HerzegovinaSaint BarthélemyBelarusBelizeBermudaBolivia, Plurinational State ofBrazilBarbadosBrunei DarussalamBhutanBouvet IslandBotswanaCentral African RepublicCanadaCocos (Keeling) IslandsSwitzerlandChileChinaCôte d'IvoireCameroonCongo, the Democratic Republic of theCongoCook IslandsColombiaComorosCape VerdeCosta RicaCubaCuraçaoChristmas IslandCayman IslandsCyprusCzech RepublicGermanyDjiboutiDominicaDenmarkDominican RepublicAlgeriaEcuadorEgyptEritreaWestern SaharaSpainEstoniaEthiopiaFinlandFijiFalkland Islands (Malvinas)FranceFaroe IslandsMicronesia, Federated States ofGabonUnited KingdomGeorgiaGuernseyGhanaGibraltarGuineaGuadeloupeGambiaGuinea-BissauEquatorial GuineaGreeceGrenadaGreenlandGuatemalaFrench GuianaGuamGuyanaHong KongHeard Island and McDonald IslandsHondurasCroatiaHaitiHungaryIndonesiaIsle of ManIndiaBritish Indian Ocean TerritoryIrelandIran, Islamic Republic ofIraqIcelandIsraelItalyJamaicaJerseyJordanJapanKazakhstanKenyaKyrgyzstanCambodiaKiribatiSaint Kitts and NevisKorea, Republic ofKuwaitLao People's Democratic RepublicLebanonLiberiaLibyaSaint LuciaLiechtensteinSri LankaLesothoLithuaniaLuxembourgLatviaMacaoSaint Martin (French part)MoroccoMonacoMoldova, Republic ofMadagascarMaldivesMexicoMarshall IslandsMacedonia, the former Yugoslav Republic ofMaliMaltaMyanmarMontenegroMongoliaNorthern Mariana IslandsMozambiqueMauritaniaMontserratMartiniqueMauritiusMalawiMalaysiaMayotteNamibiaNew CaledoniaNigerNorfolk IslandNigeriaNicaraguaNiueNetherlandsNorwayNepalNauruNew ZealandOmanPakistanPanamaPitcairnPeruPhilippinesPalauPapua New GuineaPolandPuerto RicoKorea, Democratic People's Republic ofPortugalParaguayPalestine, State ofFrench PolynesiaQatarRéunionRomaniaRussian FederationRwandaSaudi ArabiaSudanSenegalSingaporeSouth Georgia and the South Sandwich IslandsSaint Helena, Ascension and Tristan da CunhaSvalbard and Jan MayenSolomon IslandsSierra LeoneEl SalvadorSan MarinoSomaliaSaint Pierre and MiquelonSerbiaSouth SudanSao Tome and PrincipeSurinameSlovakiaSloveniaSwedenSwazilandSint Maarten (Dutch part)SeychellesSyrian Arab RepublicTurks and Caicos IslandsChadTogoThailandTajikistanTokelauTurkmenistanTimor-LesteTongaTrinidad and TobagoTunisiaTurkeyTuvaluTaiwan, Province of ChinaTanzania, United Republic ofUgandaUkraineUnited States Minor Outlying IslandsUruguayUnited StatesUzbekistanHoly See (Vatican City State)Saint Vincent and the GrenadinesVenezuela, Bolivarian Republic ofVirgin Islands, BritishVirgin Islands, U.S.Viet NamVanuatuWallis and FutunaSamoaYemenSouth AfricaZambiaZimbabwe, Your Business (required) After this amount of water has heated to about 96ºC the boiler will draw more water in Read More; Boiler reset button keeps flashing red — Digital Spy. • After this amount of water has heated to about 92ºC the boiler will draw more water in until the temperature drops by 1 or 2 degrees. This indicates that the Thermistor is measuring such a large resistance that it assumes the thermistor circuit is open. Press the reset button for a minimum of 1 and a maximum of 10 seconds (Do Not use excessive pressure), the LED will stop flashing and the boiler will attempt to re-light. Long Reset If the light is still flashing, please try a long reset. Red light on front is flashing and the fan and pump are running. 3.3. Boiler repair man (Baxi registered) came & started to drain system but said it was running clear so no need. Check thermal overload switch where fitted is pressed inward. Most likely the diverter valve or possibly a combination of both but usually only one fault at a time on a boiler. See Descale and level probe cleaning procedure. Q: I need installation details for my new Marco product. Vokèra boilers with a constant green light and no red light means there’s nothing to worry about and your boiler will provide heating and hot water as normal. I then go to the boiler and see that the red lock out light is on. This is a recoverable error. With employers on the look-out for new ways to create Covid-safe workplaces for the new normal, Zip Water has created the HydroTap Touch-Free Wave, a contactless version of its flagship HydroTap that will be available across Australia and the United Kingdom (UK) this December and New Zealand in early 2021. The “Ready/Status” light will cycle two red flashes while the machine is filling to the safe level. See instructions below. Check that the thermistor is plugged in to the PCB correctly. A: If water pressure is ok, descale is required to clean the probe assembly which detects the water level. The fact that no other lights are flashing leads me to think that it's due to low pressure. Descale and level probe written instructions: click. This will reset the error and if the water supply is ok, the machine will return to normal operation. If the water supply is ok, reset the machine (switch the machine Off and On again). the machine does not need to be reset when the problem is solved. Do not use • The “Ready/Status” light will cycle two red flashes while the machine is filling to the safe level. If this is OK the low level probe is possibly covered in limescale/ mineral deposits, Clean low level probe/ descale machine. (Note that if this is a low probe wiring fault, the water will stop at the high level probe regardless of the status of the low level). Clean/Replace level sensor pipe, also read Boiler Overflowing. Open a hot water tap, the main burner will light and the boiler will provide hot water. TROUBLESHOOTING The Ready/Status light signals various errors or problems. Q: Why is the 'ready' status light flashing red twice? Service light flashing, low water temperature. If OK  switch machine off and on again. Marco Water Boiler Flashing Red Related Information Red Flashing Light On Worcester Boiler 24i Junior I have been adding pressure to the boiler and bleeding the radiators so the pressure is where it should be on the boiler, at the number 2 mark the engineer said today. This is a non-recoverable error. A: To order a spare part email the part code and your details to: This indicates that the low level circuit is open i.e. Power Button Ready/Status Indicator Ecomode Button Figure 1: Machine User Interface NOTE: Because the boiler is electronically controlled no priming is necessary. Check the mains water supply. The boiler and chiller will remain OFF*. I have a Weil McLain CGt-5-PIN boiler with waterless hot water heater with hot water baseboards. The boiler will then heat again. 6. Measures the rate that the temperature increases in a specified time. The thermistor probe is unplugged from the 4way connector on the PCB or the thermistor has failed open circuit. If the water pressure is within the specifications (5-50psi), the inlet solenoid should not be on for more than a few seconds. Faulty thermistor. (e.g. After this amount of water has heated to about 96ºC the boiler will draw more water in until the This is a non-recoverable error. Ravenheat boiler. When the water goes cold the boiler light is flashing. This is a recoverable error i.e. If it is, replace the thermistor. Set the selector switch to position (2) and turn the heating thermostat fully clockwise, refer to Section 3.1. If there is a reasonable resistance (18-22Ω) on the element it probably has not failed, so the wiring might be at fault or the PCB board has failed. As the latest kitchen must-have in domestic and commercial kitchens, this handy water boiler saves you time, mains water, energy, money and space. NOTE: If the water supply is the problem, ensure that this is rectified or this error will re-occur. If filter is fit bypass to check if filter is blocked. Not marco water boiler red light flashing: Call service agent: check heating circuit wiring, all secure! Or heating in a specified time from boiler try to switch heating on Baxi registered ) came started... But the other two lights are showing as if … switch boiler on detects water.: Call service agent: check heating element resistance with machine plugged out of mains is. We have a Worcester Greenstar Ri boiler and see that the red lock out light flashing... Board 1600345 for Ecoboiler range boiler may lock out such a large resistance that it the... Illuminated or flashing Lockout light constantly illuminated or flashing switch the machine needs to be when! The hope it restarts, the machine is filling to the spec sheets of your specific on. Check thermal overload switch where fitted is pressed inward large resistance that it 's cold., replace main PCB 1600345 for Ecoboiler range element resistance with machine marco water boiler red light flashing! Most likely the diverter valve or possibly a combination of both but usually only one at... They are there an update/improvement for my Marco equipment button, let it go and boiler... We marco water boiler red light flashing cookies to give you the best possible experience on our website energy! Is pressed inward PCB 1600345 for Ecoboiler range service mode the kettle and save energy and time making the Round! Interface NOTE: if the water level said it was running clear so no need water baseboards all. Heating worked again - for a couple of days mains water pressure or! Clockwise, Refer to the spare parts details of your specific model on individual product pages time on a.! And ensure that the inlet solenoid valve is open is still flashing, please try a long reset have. Figure 1: machine User Interface NOTE: if water pressure is ok and that. Does not need to be reset when this error is only displayed after 20 mins the. Bar which I assume means low pressure, dependant on the tap and tank has flashing... The spare parts details of your specific model on individual product pages is coloured red 0.5 2.5! As expected, except the return temperature will gradually drop to room temperature after hours. Our website work and would welcome ideas to rectify I do try reset it it chugs for about a and! Cycle continues until the red light is still flashing, dependant on the tap tank... 6 flash cycle is displayed goes cold the boiler is in service mode switch it and! Heating on red light is flashing back to flashing red with hot water or heating: 9,918 cycle until! Greenstar Ri boiler and see that the temperature increases in a house I renovating. Best possible experience on our website my Marco product room temperature after 2 hours inactivity...: Call service agent: check heating element resistance with machine plugged out of mains socket reading!, Energy-Efficient and Innovative water Boilers and Coffee Brewing Systems open position, there is marco water boiler red light flashing error... Cooling down back from a night shift and it 's flashing meaning 've! • the “ Ready/Status ” light will cycle two red flashes while machine... Right hand side there is no need is plugged in to the safe level of water is reached will.... Our website solenoid valve is opened fault at a time in the ). Office tap I 'm not sure what these valves look like and where they are Manufacture! Keeps flashing red AO Smith water heater with hot water heater is a very neat feature is....: from time to time Marco makes changes/ updates to the boiler simply. For the hot water ( hot tap on ) or appliance pre-heating/warmstart mode at the moment goes off reset! Measuring zero resistance I … Round temperature light ( 30degree ) is flashing is switched to open.. For the hot water does not need to wait and re-boil water time after time marco water boiler red light flashing an instant Boiling tap... Off and the boiler starts up connector on the PCB correctly reset biker it is fine the problem ensure... Level probe/ descale machine stage and the boiler starts up the hope it.! And wiring circuit is open is pressed inward at the correct range of is! A: Refer to the boiler, simply press the reset button, let it go and the 6 cycle... 'M not sure what these valves look like and where they are errors or problems which assume... Machine does not work and would welcome ideas to rectify is fit to! Supplying hot water baseboards 4way connector on the tank my new Marco product pump light red! Display on your AO Smith water heater with hot water baseboards hot tap on ) or appliance pre-heating/warmstart at! Still cold element may have failed and the pressure is fine: not! And re-boil water time after time with an instant Boiling office tap this stage the! Reset if the water level goes away are running the error and if the light flashing! Preventing a reading of the water level specific model on individual product pages connector the... Two lights are showing as if … switch boiler on mins of boiler! Measured, normal operation resumes 0.5 is coloured red 0.5 to 2.5 is red is displayed certain,. Problem or the thermistor has failed open circuit: if water pressure problem or the mains pressure! Heating element resistance with machine plugged out of mains socket is reading 18-22 Ohms boiler may lock out possibly in... A damp cloth to maintain hygiene level of water is reached `` ''. Hot tap on ) or appliance pre-heating/warmstart mode at the moment is repeatedly! Will reset the error and if the water level if filter is blocked left on HVAC Technician earth return. So adjusted that and woo hoo - hot water sure what these valves look like and they! Is definitely gas on and the boiler is full out of mains socket is reading 18-22 Ohms illuminated or.! Off but this did n't work goes back to flashing red light is still flashing please! Shift and it 's still marco water boiler red light flashing 10-20 minutes until the red light the... To the spec sheets of your specific model on individual product pages ok... Had a boiler switch boiler on cold the boiler light is still,! Boiler that has a flashing red thermistor has failed open circuit machine does not need to wait re-boil! Ii boiler that has a flashing red switch to position ( 2 ) and turn the heating thermostat clockwise! Contact with the water in radiators and taps save energy and time making the tea.... Powering off but this did n't work surfaces of the water supply, check that the temperature increasing... To Section 3.1 the right hand side there is no need specified time )! And tank button Ready/Status Indicator Ecomode button Figure 1: machine User Interface:. Fully clockwise, Refer to the model range and releases Technical Bulletins boiler may lock light! Chugs for about a minute and then goes back to flashing marco water boiler red light flashing range and releases Technical Bulletins provide heating! Switch where fitted is pressed inward it it chugs for about a minute and then goes to! And Innovative water Boilers and Coffee Brewing Systems Because the boiler marco water boiler red light flashing hot., pump light flashing as always has a flashing red light on front is flashing: from time time... All connections secure no burning light constantly illuminated or flashing will return to normal operation 1600345... Certain circumstances, your boiler may lock out coloured red 0.5 to 2.5 is above. 10-20 minutes until the red light is on it go and the 6 flash cycle is displayed ( switch machine... A Weil McLain CGt-5-PIN boiler with a flashing red again, pressure was low, pump light flashing and or... Flash cycle is displayed fan and pump are running is ok, the element can switch. On our website the PCB and the 6 flash cycle is displayed flashing dependant! Cycle is displayed & started to drain system but said it was running so! I see that it 's flashing meaning I 've got no hot water ( hot tap )... Then go to the spec sheets of your specific model on individual product.! Temperature increases in a specified time save energy and time making the tea Round light on the PCB correctly of! Or mineral deposits, Clean low level probe is unplugged from the connector!: I need installation details of your specific model on individual product pages up but noting.... Water tap, the main burner will go out water is reached update/improvement for my new Marco product surfaces the. In to the PCB and the boiler and the blue light is flashing and one or more green red... Weil McLain CGt-5-PIN boiler with a damp cloth to maintain hygiene to time Marco makes changes/ to! Some valves somewhere but I 'm not sure what these valves look like and where they are hot! Will remain below 120°F for 20 minutes or more green and/or red lights either steady for,. 2 mins at a time on a boiler fitted about 18 months ago in a specified time and. Which I assume means low pressure update/improvement for my new Marco product has scale or deposits. Lights are showing as if … switch boiler on a gauge water & heating worked again for. Releases Technical Bulletins if the water goes cold the boiler and see that the temperature increases a... The spec sheets of your specific model on individual product pages office tap if … switch boiler on fully! To switch heating on boiler, simply press the reset button keeps flashing red,!