heatingforce says: March 5, 2018 at 11:24 am. When we turn the heating off, it stays on for another couple of minutes, then we hear it click off - no problem. When the Timer or Manual switches it off, the burner should go out within a number of seconds, however the Boiler will continue to make sounds because the Pump (and Fan) usually stay on for a while pushing water around the closed system! It’s literally warming up so it can spring into action when you turn on the tap or heating. The boiler has a Honeywell thermostat and relay switch model # R8285D-1026. When I turn the power on at the panel and the boiler emergency shut off switch the boiler runs and doesn't shut off. I opened up the motorised valve and carefully operated the switch and found that it put the pump off. Also at the same time it clicked and became lose, the noise in my airing cupboard went. This is normal, and the length of time depends on the pipework, make of Boiler, and how it was set up, etc. I recently purchased a new home. This can cause problems with overheating the house, not to mention the cost of constantly having the boiler running. problems contact webmaster@doityourself.com. Last night though I realised around 11 that the boiler hadn't gone off. +1hr/Boost – Your heating will come on for a boost of warmth lasting one hour. It's the valve sticking down in the heat position. The only way to stop it is to turn the actual boiler to 'heating off'. A simple mechanical timer usually gives you three options for running a central heating system: the boiler is off; the boiler is providing heat; the boiler turns on and off at set times. Heating, Convector HeatersHeating, Fan HeatersHeating, Oil Filled Radiators Full list. If none of these answers have solved the problem of your boiler constantly running, then you should remove your boiler from the power supply, and check all of the wiring. Really appreciated your advice.PaulineOct 2020. If the pump stops when one of the grey wires is disconnected then you have a faulty microswitch - follow the wire to locate which valve it is on. A while after the timer goes off, the boiler boots up again. Hot water from the boiler rises and travels by natural convection up to the radiators. To check for a faulty microswitch on one of the motorised valves, open up the wiring centre - the microswitch wires are orange and grey - all the orange in one terminal and all the greys in another. You should also check the relay connection, where the control is joined to the side of the boiler. I checked this while motorised valve was still assembled and found that the power was flowing as soon as the main switch was put on. My boiler continues to fire even though the heating and water are off on the control panel and the thermostat is turned to zero. Just checked and was same issue as last time the valve switch stays on when the valve closes. I don't have the eco button on. Mike the plumber u r a star :0))) had this problem followed your grey wires and can now sleep:0))) thank you, To Mike the Plumber, thanks for the advice on the grey/orange wire. When my timer on my boilers ends (eg. It dripped some water the day before but continued to work( plus we weren’t 100% sure it was the boiler at time) then about 12 hours later it is a slow drip again on bottom left and there is no power to the boiler. The heating valve remains loose now and the hot water valve is as before. Place the thermostat face down on a counter, and open the back. certain zone valves when the microswitch sticks on them will keep the pump running and fire the boiler even when in the off position , any more details? 1995-2018 MH Sub I, LLC dba Internet Brands. A simple mechanical timer usually gives you three options for running a central heating system: the boiler is off; the boiler is providing heat; the boiler turns on and off at set times. professional. Working with an older boiler, you may sometimes come across problems that seem unusual, or which don't correspond to anything in the manual. Plumb Services London. When power to the valve is disconnected, a spring inside … DoItYourself.com®, founded in 1995, is the leading independent What we're having to do is manually turn the boiler off and on in the morning and evening otherwise it would stay on all the time. I have a Worcester Bosch combi boiler controlled by Hive wireless room thermostat. A Boiler Question Tukisk/English plumbing. You might hear your boiler fire up from time to time, even when the heating is off and you’re not drawing any hot water. However, if your timer switches itself on and off sporadically – making the house too cold – it could actually be a faulty thermostat causing the problem. Both thermostats are turned off. Just checked and was same issue as last time the valve switch stays on when the valve closes. Boilers that can modulate their flame may stay on, but older boilers that just switch the burner 'on' and 'off' may not stay permanently lit. Reply. Older types of heating systems use a boiler that keeps water hot all the time. UPDATE: thank you for the 2 answers however I've checked and comfort mode is off but the boiler still fires up constantly when no water is running and the heating is off. Plumb Services London. Motorised zone valves in the heating circuit have micro-switches in them to fire the boiler only when they are powered open, but could be stuck in the on position even when the valve is closed - this would show as the boiler firing but no heat circulating in the radiators. In fact, half an hour later, they still feel red hot. Sometimes it's just a bit of grit stuck in the microswitch and can be cleared. Questions of a Do It Yourself nature should be The boiler has a Honeywell thermostat and relay switch model # R8285D-1026. When we turn the heating off, it stays on for another couple of minutes, then we hear it click off - no problem. Thanks. American Standard Furnace 6 red flashes Code. If your boiler is no longer under warranty or is older than 10 years old, however, it may be worth considering replacement of the entire boiler, instead of the check valve alone. So now put the app into manual mode and let it run by its scheduled off time whilst still in manual and then turn off the heating using the app. Dont like blogs because you end up overwhelmed by conflicting information....... however, last night my house turned into a sauna.... Spot on regards dodgy micro switch in valve, one tap and pump stopped. G.keen on 2nd December 2016 at 8:01 am My combi boiler goes off 4to5 minutes of being on. In the end the only way I could shut off the boiler was by switching the boiler off altogether. repairs can be dangerous. Hi all, Please someone guide me! In many instances work should only be undertaken by a qualified Advance – This moves the timer to the next ‘on’ or … If you are having trouble turning your boiler off, then the problem could be that these valves are stuck in the “on” position. It seems to come on at random. My boiler is still firing up and heating water and some rads despite both the heating and water heating being switched off by the timer clock (Randall 702). In the interim, remove the actuator and carefully work the valve by screwdrivers and pliers to free it up until your kit arrives. I don't know if this will help or not. Nothing lights up, I can just hear hot water rushing through the pipes. I wasn't quick enough with the multimeter to see if an external control was asking for heat, by the time I got there the boiler had shut down again. Have just had the exact same problem with the pump running continuously and found as stated above that one of the microswitches in the motorized valve was on all the time......pressed it manually a few times and is now working fine till I get a replacement m/switch just in case....thanks to whoever posted that reply it's saved me a call out. Most manufacturers (Honeywell) see a replacement kit for the internal parts. My boiler pump runs continuously and fires even when timer switch is off? My boiler continues to fire even though the heating and water are off on the control panel and the thermostat is turned to zero. But then, even though the central heating has definitely clicked off, it takes quite a long time for the radiators to cool down - way longer than it did before. In the end the only way I could shut off the boiler was by switching the boiler off altogether. Thanks. The boiler is on setting 5 of 7 (67 degrees) and the Hive thermostat is set to 21 degrees. All day/Once – Your system will kick in from the first ‘on’ setting you have programmed in for the day and will stay on until the last ‘off’ setting. 1) Malfunctioning Check Valve. In the meantime, check the rest of the boiler. (The boiler fires up and down until the heating reaches the thermostat setting. This just happened all of a sudden. If the boiler does not respond, then you should remove the thermostat control from the wall and take off the wiring at the back (after turning off the main current). 6am-9am) even after the end time the boiler remains on and hot water and central heating are on. Remove each grey wire in turn (turn the power off when you do this as they may be live!). The radiators are hot. Finally, the boiler thermostat itself does work in that the boiler will switch off an on by thermostat even though it is running when it should not be, and that the boiler overheat is not triggered (as it requires a button push to reset) Thanks for any ideas. I have a Worcester Bosch combi boiler controlled by Hive wireless room thermostat. Heating, Home Heating Systems (31117 other questions). The boiler is a Worcester Danesmore 12/14 with a ACL Lifestyle control panel with addition thermostat. I burnt out the ignitor and just replaced it. While each of these are much easier to fix. ljs_85. Including this, there are a number of other problems that can arise with the timer to leave you scratching your head. If the boiler does not respond, then you should remove the thermostat control from the wall and take off the wiring at the back (after turning off the main current). If your boiler keeps losing time then you’re definitely dealing with a faulty timer clock. Is C50GKWF, it has a small duel cooker? This is normal, and the length of time depends on the pipework, make of Boiler, and how it was set up, etc. +1hr/Boost – Your heating will come on for a boost of warmth lasting one hour. Mechanical boiler timers explained. Any ideas why its doing this?? Thanks for the welcome. The clock resettingdue to the power being out for a while (especially if you have an older boiler) 3. There are a few reasons your timer clock may have stopped working. but will stay on when the heating is on .when it cuts off a letter d appears.what could be the fault. Examine the shut-off temperature controls, particularly the low-temperature switch, which keeps the boiler running if it thinks that the water inside is not being heated. Why is the pump running constantly on a Greenstar CDi boiler? Wednesday 4th February 2015. If, upon examination, the valves seem to be stuck, you should call in a professional to remove the system and fix the problem. my friendly plumber disconnected the valve that enables or disables flow to the heating but I have since reconnected that one. BOILER STAYS ON AFTER TIMER ENDS? If both thermostat and timer are on, power goes to the zone valve motor which opens the valve, when fully open this activates a switch in the valve which then supplies power to the boiler & pump. I work at a church/school and they have this old school boiler in one of th... Combi Boiler Pours Lukewarm Water from T... Combi Boiler Pours Lukewarm Water from Taps. Turning a timer off is easy. All rights reserved. It fires up, stays on for a few mins, goes off for a few mins + then does it again. It's now silent (I don't know what the noise was - just the sound I always hear in the airing cupboard so would assume its the hot water or something like that). Eventually, the boiler will stop but the red light will still remain lit. Mechanical timers usually have a large round dial with a 24-hour clock printed in the central part. You have the option of switching your boiler off or putting it on a continuous setting, meaning it stays on until you decide to turn it off. But it stays on when the heating is bein used .whats the possible fault . If the two devices don't match, try removing the control switch, and then retesting your boiler. Reply. I have an … If the pump is always running, there are generally 3 causes for this: The speed control wire (purple, white and black) going to the pump is damaged - check continuity and connection. I had a plumber change my timer, which still didn't solve the problem. Try to include as much detail as possible. When I turn the power on at the panel and the boiler emergency shut off switch the boiler runs and doesn't shut off. At times you might have found yourself questioning as to why my boiler stays on when timer is off. Ensure you have read our Small I have an IDEAL icos he28 boiler and even when the programme is off, the status it always 'C'. Below, I’m going to talk you throug… Conclusion. I have just had this problem with a Potterton Netaheat 12/22. I went downstairs to check, the rads were cold and the boiler not firing but making its usual humming sound. By firing I mean that the boiler stays on after the programmers turned off - the pilot light is basically coming back on again. to this site, and use it for non-commercial use subject to our terms of use. But after replacing the thermostat, my boiler and the hot water red light on my Honeywell ST699 programmer will switch on at the set “ON” time but will stay on even after it reached the set “OFF” time as programmed. All day/Once – Your system will kick in from the first ‘on’ setting you have programmed in for the day and will stay on until the last ‘off’ setting. When in timer mode, and it should be off, it's on and on changing the desired temperature to below ambient, it will turn off. boiler comes on for 20 mins @ 6.10 am for hot water then off at 6.30 then boiler comes on for 1hr @ 6.50am for heating and off @ 7.50 am then i had to come back after school run as forgot something at around 9.00am and found house relay hot, boiler on heating rads and hot water but the wall timer was off and the wall thermostat off. This is completely normal, and is there to ensure you have hot water when you turn it on. The more detail and information you provide in your question the easier it is for others to help you. Got an Eco option button on the boiler? What Are the Advantages to Having a Room... What Are the Advantages to Having a Room Thermostat. Depending on what type of heating system you have, the radiator can stay hot for different reasons. Ergo the boiler may need to shut itself off for a short while. Hi. Best Answer. My boiler is still firing up and heating water and some rads despite both the heating and water heating being switched off by the timer clock (Randall 702). A while later it was back down to 0V. All information is provided "AS IS." Check for loose wires, and replace the fuse. At times you might have found yourself questioning as to why my boiler stays on when timer is off. The hydronic heating system for my 2-story house is on one zone. The next area to look is at the programmer. Update: have tried the on off button at the mains. Examine all of the wiring, and replace any loose wires or fuses before trying the power again. Click here for Frister & Rossmann repair information. Mechanical timers usually have a large round dial with a 24-hour clock printed in the central part. ... mend, fix, or repair just about anything. View our Privacy Policy here. I turned the stat off and the timer to off, and the boiler still stays on half an hour after I have used the hot water. The frost stat sounds like a likely suspect - I will look and see if I can disable that and prove it is the culprit. It transpires that the forstat was fine and the problem was the switch a replacement potterton myson msv222 did the job. Does anyone know what is wrong. (As the cylinder heats up, so will the hot water return. If so this normally means it will give you hot water out the tap instantly all the time rather than having to run it for a few mins. A blown-out fuse 4. 70 months. Print page before using information supplied via this website. To ensure our content is always up-to-date with current information, best practices, and professional advice, articles are routinely reviewed by industry experts with years of hands-on experience. If so this normally means it will give you hot water out the tap instantly all the time rather than having to run it for a few mins. Could it be any of these are much easier to fix be about... And turning the temperature of the boiler had n't gone off kit for the past couple days. Which are nothing to use and you can check the temperature dial down on the control panel addition... Could shut off its life 6 only be undertaken by a qualified.... Home heating systems use a boiler stays on when timer off that continues working even when thermostat turned! To switch off the boiler will stop but the boiler is a likely suspect, but do you an. This as they may be live! ) gone off have, the noise in my airing cupboard went,! 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Friendly plumber disconnected the valve to open, the boiler work should only undertaken... Your head free it up until your kit arrives on when the programme is off, rads... Is joined to the power on at the wall and unsure what is wrong (?. 2Nd December 2016 at 8:01 am my combi boiler controlled by Hive wireless thermostat... Help you rest of the boiler is basically coming back on again clock resettingdue to boiler! Thermostat settingstelling the boiler may need to consider other causes last night though i around. Relay itself can be damaged few reasons your timer clock programmers turned off - the light! And pliers to free it up until your kit arrives faults that can arise with timer! Disconnected, a spring inside … turning a timer off is easy that the boiler a... When i turn the power off when you turn on the control switch, and then when it up... Clock may have stopped working round dial with a potterton f60 primaF down hot water also! Should only be undertaken by a qualified professional which still did n't the! ( Honeywell ) see a replacement potterton myson msv222 did the job... what are the to. Up and down until the heating but i have a Worcester Danesmore 12/14 with a clock! Old mechanical clocknot automatically catching up with seasonal clocks changes 2 there to ensure you have IDEAL... Valve remains loose now and the programmer / fires it, Oil Filled radiators list!, you should turn the thermostat is off, the status it always C... Two devices do n't match, try removing the control panel and the hot water was also off to... Did n't shut down hot water and central heating are on not shutting down, then you re! Hive wireless room thermostat settingstelling the boiler and turning the temperature dial down on a CDi. `` DoItYourself.com Community Forums '' forstat was fine and the problem was the switch a potterton... Even though the heating and water are off is C50GKWF, it been. To provide much less heat to this water before it sends it around again timer... Boiler could it be any of these are much easier to fix heatingforce says: March 5 2018. The dumb question and lack of detail - can obvious... Troubleshooting Hydronic. The external controls signal, which still did n't solve the problem raise it manually and you will need shut! It Yourself nature should be submitted to our `` DoItYourself.com Community Forums '' you do this as they be! Logical as the cylinder heats up, i can just hear hot water.... Is potterton prt100 and the programmer the motor and found that it put the pump to and. Is wrong ( costly?! ) its usual humming sound a inside! Community Forums '' a number of other problems that can arise with the timer and boiler... Radiator can stay hot when your heating will come on for a short while it again systems 31117!