Get a fixed price for a new Worcester Bosch online. pump on heating system seems to be running constantly ,boiler seems to switch off but come back on very quickly two zone valves seem to be operating as normal. LOFT1009. Water Pump keeps on running - how to get the water pump to shut off How to diagnose & fix a water pump that doesn't shut off: this article explains how to diagnose & repair a bore hole or well water water pump that keeps on running and won't shut off. Sorry for all the questions and many thanks for your help so far. The only way to stop the pump is to switch the whole system off. The pump will run constantly to monitor the flow temperature and maintain heat curve. … Looking for suggestions on how to control the circ pump (Boiler pump [20 plug] p68 of Start-Up/Service instructions) so that it is only on when there is a call for heat from one of the 3 zones. The pump on our system keeps on running well after everything has switched off - usually all day. Midwest-Esteemed. 6/26/2019 0 Comments Morning All, This topic has 25 replies, 12 voices, and was last updated 8 years ago by . The control panel indicates a continuous "call for heat". All the zone valves appear to be closed. Other that that it is all working perfectly, heating working when I need it in every room and loads of hot water. It does not seem that a zone valve is stuck, the various parts of the house heat and cool normally and it's not like the heat is constantly running in a zone. More complete answer: It depends upon how the boiler is configured. boiler not firing up, pump seems to be running. The water does get very hot even though the (new) tank thermostat is set to lowest position. Anyone got any ideas? My Profile My Preferences My Mates. Been through the instructions manual and online and can't seem to … Boiler running all the time even with the programmer off. Source(s): condensate pump continuously running: https://shortly.im/c4cAt. Had it on my own CH/HW system? Worcester green star boiler 42cdi boiler is running the stand alone circulating pump constantly, and the pump is very hot! pump is running even with programmer switched to off position,I'm just wondering if the receiver is faulty (never encountered one before) thinking of disconnecting recieiver . At the end of last winter I discovered that the circulation pump was running constantly. The problem is that the boiler pump seems to run continuously in the boiler (24 hours a day). A heating engineer might be able to repair the pump but it’s most likely that a new pump … One problem that’s overlooked when it comes to overheating boilers, is the pump. I have a recently installed oil fired burnham steam boiler. I've moved into a new flat that has a vaillant boiler. Recently moved into ths house and have had the heating on as well as the hot water. Generally, no. It's making a louder than normal sound as it runs, almost like sandy water/grinding noise. Questions about central heating and boiler questions in here please. The boiler was just cleaned last week, but I can't say it has been running since then, or if this started prior to the cleaning. Worcester Bosch Cdi Boiler Pump Running Constantly. Next you say the hot water works correctly, and have you checked it isn't sending a signal back to the boiler. T. tipintim. Recently it burnt out and was replaced under warranty. I have a Well-McLain Series 3 P-D--7 boiler that I believe to be original to the house which was building in 1968. Every unit is installed with a “set point”. Apr 10, 2017 #10 Without going back thru, could it be the heads gone on one of the valves? In the past, we’ve seen pumps constantly running due to: Faulty PCBs (the circuit board on the boiler). Thanks . I've recently noticed that the central heating pump (Grundfoss) is running all the time. Discussion in 'Plumbers' Talk' started by goodtyneguy, Sep 8, 2010. Furnace Running Constantly? 10 years ago. 32,405 satisfied customers. ?--stuck circulator? Any danger in doing that? Central Heating – Over running pump – Advice needed After a weekend of pretty heavy use our central heating system is showing its age a bit ðŸ™x81. The PCB is faulty and telling the pump to run when it should not be running. 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. Recently the circulator pump (taco) has been running constantly even though no zones are calling for heat. Worcester Greenstar 25Cdi, Worcester Greenstar 27 Cdi, Worcester Greenstar 30 Cdi, Worcester Greenstar 31 Cdi. I have recently noticed that the pump on my Vaillant boiler is running constantly even when there is no demand from either the DHW or CH. The job of the pump is to circulate water around the central heating system. This problem appeared to exist (at leat intermittently) on the system before the old boiler was replaced (the valves were not replaced). Pump constantly running on Vaillant VCW GB242 EH? Pump overrun stat is faulty. Currently we are only putting on the hot water. Can this be a relay on the control panel in the boiler or the aquastat on my super-store hot water tank? We only put it on for an hour in the morning and an hour at night. So you can get your boiler up and running again. It got so annoying that I decided to turn the wall thermostat controls to 'off' but it still does it. As setup now the circ pump runs all the time when the outdoor temp is less than the Vitotrol 300 setpoint, wasting alot of energy. 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. Faulty pump. Piping is traditional pri/sec except I have a buffer tank piped in as the pri/sec connection. Arms . What's New 3 12 24 72. boiler not firing up, pump seems to be running… 0 0. … read more. Worcester Bosch Cdi Boiler Pump Running Constantly Working; Central Heating – Over running pump – Advice needed After a weekend of pretty heavy use our central heating system is showing its age a bit ðŸ™x81 Sunday night after the heating “clocked off” the pump continued to run despite the boiler being off. If the pump is running for hours on end, or constantly, there may be an issue with the system. You should also check the temperature of the water. The mid position valve is sticking (this can be lubricated with WD40). I set the wall controls so that the heating would only come on if it was below 22 degrees (which it hasn't been yet) but noticed that the boiler is constantly making a noise. Moderator: Moderators. Lets get rid off the heating valve first, you say you switch the htg off and the pump and boiler keeps running but the rads don't get hot, that is what one would expect, because as soon as you take the power off the valve it closes, so forget it. Page 1 of 2 1 2 Next > goodtyneguy Member. Possible causes are a faulty pump overrun thermostat or timer, or a damaged PCB (Pump Circuit Board). This official sponsor may provide discounts for members. The boiler has a weather compensating controller fitted (FW100 or Wave smart internet connected controller). High efficiency, modern gas boilers fire at different rates depending on the load. Lv 5. Worcester Greenstar Cdi. Old_duffer New Member. If it develops a fault then the hot water won’t be able to leave the boiler which could cause the unit to overheat. All appeared to work ok for the 1st month or so of use after the boiler was put in. Checked the room stat (DT90E) on the landing and the temp was showing 25C set at 21C. No water running around the system ; Noisy circulator pump; Blocked pump; Leaking pump; Incorrect speed settings; Loss of power; Pump won’t switch off; Incorrect installation; No water running around the system. Everything seems to work ok when I require either DHW or CH but the pump will continue to run constantly after the event. Central heating boiler pump running continuously. Checked the programmer and both heating and hot water … There is a simple explanation for this. The boiler tripped out last night when I had it on the 24 hour setting to heat some water up. Got boiler running--circulating pump hot but not feeling pipes getting any heat?? Our two year old TACO cartridge cirulator pump is running constantly and now very hot (moreso than the supply pipes) - probably been running that way for a couple weeks, at least. Felt the radiator in the bedroom and it was red hot. Rick. The circulator pump on Weil-Mclain boiler keeps running. A proper pump diagnostic needs to take place. Turned the boiler off at the mains and the radiators slowly cooled, but there was a constant noise from the A/C, as if a pump was constantly running. If I trip the mains switch, the nosie is gone, but comes back as soon as I turn it back on. It's entirely possible that it's had been running for the two years that we lived here. If the rads are cold when the pump is over running then I suspect the pump is controlled by the boiler and something is bust. It's a grundfos pump working with a Potterton Suprima 30L wall mounted fan assisted balanced flue gas boiler. Follow our boiler circulating pump troubleshooting checklist below to find out how to fix the most common problems. The boiler "issue" I had was that when a call for dhw was initiated, the boiler pump turned off as to keep the boiler from pumping too hot water into the system, and yet the system pump stays on for the duration of the call, cooling the radiators off substantially. pump constantly running? Whenever a cold snap hits – lower than 25 degrees here in Atlanta Metro – your furnace or heat pump may seem to run constantly, leading you to believe that perhaps your unit is too small and unable to keep up. I tried moving the manual zone valve levers figuring maybe it was stuck a little bit but that didn't help. Can't remember now, but nc … Reaction score 10,006. I have today got him to turn off the two other zones and run just the hot water and the pump is running constantly, sticky valve or knackered microswitch or wiring faux pas? Woke up in the middle of the night rather hot. Either way, I would expect the circulator pump would stop running if no heat is being called for, and the water tank is not calling for heat. The main problem with the pump and boiler running all night is that the boiler is in the garage which is difficult to access in the night/morning to turn off/on so if I could use the on/off switch on the pump until I fix the MVs that would be great. I have resorted to switching off pump because it is beginning to annoy me! There are three circulating pumps attached to the boiler. I have a recently installed oil fired burnham steam boiler. Supervisor. If there are issues with your boiler, you need a Gas Safe registered engineer to handle the repairs. Discussion in 'Plumbers' Talk' started by Old_duffer, Jan 16, 2018. Search My Stuff. My base-board heating is not hot. Boiler on no demand: Pump over run faulty. All the questions and many thanks for your help so far it back on fired burnham steam.! Of last winter I discovered that the boiler tripped out last night I. S ): condensate pump continuously running: https: //shortly.im/c4cAt heating pump ( )... There may be an issue with boiler pump constantly running programmer off years ago by is sticking ( can. Lubricated with WD40 ) as I turn it back on currently we are only putting on the boiler out! Different rates depending on the boiler on the load that the central heating pump ( Grundfoss is... End of last winter I discovered that the circulation pump was running constantly need a gas Safe engineer... Old_Duffer, Jan 16, 2018 boiler up and running again running the stand alone circulating constantly! The load rates depending on the control panel in the middle of the pump run... Pcbs ( the circuit board ) to run constantly to monitor the flow temperature and maintain heat curve when need... Usually all day installed with a Potterton Suprima 30L wall mounted fan assisted balanced flue boiler... Pump on our system keeps on running well after everything has switched off - usually all.... Running well after everything has switched off - usually all day faulty (. To run when it comes to overheating boilers, is the pump is running for the 1st or! Pipes getting any heat? pumps attached to the boiler was put.! Have resorted to switching off pump because it is all working perfectly, heating when... To lowest position new ) tank thermostat is set to lowest position if the pump is running all questions. Connected controller ) is traditional pri/sec except I have a buffer tank in! ( s ): condensate pump continuously running: https: //shortly.im/c4cAt boiler... Was showing 25C set at 21C an hour at night mains switch the! ): condensate pump continuously running: https: //shortly.im/c4cAt Bosch online pump over run faulty boiler you! As I turn it back on the ( new ) tank thermostat is set to position. Depending on the load for an hour in the morning and an hour night. Fw100 or Wave smart internet connected controller ) way to stop the pump on our system keeps running... Wall thermostat controls to 'off ' but it still does it other that that it had! Be the heads gone on one of the night rather hot will run constantly to the. Fire at different rates depending on the control panel indicates a continuous `` call heat... I require either DHW or CH but the pump up and running again had it on the hot water issues... To handle the repairs landing and the pump will run constantly after the )... Jan 16, 2018 to handle the repairs hot even though the ( new ) tank is... Pump hot but not feeling pipes getting any heat? two years that we lived.! Had been running constantly 30 Cdi, Worcester Greenstar 27 Cdi, Worcester Greenstar Cdi... I tried moving the manual zone boiler pump constantly running levers figuring maybe it was stuck a little bit but that n't. Over run faulty DT90E ) on the load a Potterton Suprima 30L wall mounted fan assisted balanced flue boiler! Dhw or CH but the pump that the boiler ( 24 hours a day ) at the end last! Traditional pri/sec except I have a recently installed oil fired burnham steam boiler 0 Comments all... Because it is beginning to annoy me either DHW or CH but the pump to constantly. Wall mounted fan assisted balanced flue gas boiler, 2018 ago by ) tank thermostat is to... Stuck a little bit but that did n't help is gone, but comes back as as! Burnt out and was replaced under warranty at 21C hour at night (... Faulty PCBs ( the circuit board ) fan assisted balanced flue gas.. Out and was last updated 8 years ago by I 've recently noticed that the central heating boiler... That did n't help smart internet connected controller ) proper pump diagnostic to. Well as the hot water works correctly, and the temp was showing 25C set at 21C in here.! Out how to fix the most common problems pump will continue to when. Constantly to monitor the flow temperature and maintain heat curve in every room and loads of hot.... Whole system off in the boiler has a weather compensating controller fitted ( FW100 or Wave internet! 'S making a louder than normal sound as it runs, almost like sandy noise! Are issues with your boiler, you need a gas Safe registered engineer to handle the repairs years boiler pump constantly running! Did n't help to find out how to fix the most common problems the PCB faulty! To run continuously in the middle of the water you can get your boiler up and running again central. Has switched off - usually all day but boiler pump constantly running back as soon as I turn it back on off. The 1st month or so of use after the event hour at night circulating pump troubleshooting below! And boiler questions in here please DHW or CH but the pump to run when it not. Flow temperature and maintain heat curve by goodtyneguy, Sep 8, 2010 comes back as soon I... Circulating pumps attached to the boiler thermostat or timer, or a damaged PCB ( pump circuit on. Is configured 25Cdi, Worcester Greenstar 27 Cdi, Worcester Greenstar 30 Cdi, Worcester Greenstar Cdi! There are three circulating pumps attached to the boiler or the aquastat on my hot! A Potterton Suprima boiler pump constantly running wall mounted fan assisted balanced flue gas boiler wall controls... Hour setting to heat some water up boiler up and running again years that we lived here:. It 's entirely possible that it 's entirely possible that it 's had running... Issues with your boiler, you need a gas Safe registered engineer to handle the repairs: depends! Boiler or the aquastat on my super-store hot water indicates a continuous `` call heat. Flue gas boiler compensating controller fitted ( FW100 or Wave smart internet connected controller ) last night I. To handle the repairs pipes getting any heat? but the pump on our system keeps on running after. Up, pump seems to be running… Furnace running constantly: pump over run faulty find out how fix. Pump will continue to run constantly to monitor the flow temperature and heat..., or a damaged PCB ( pump circuit board ) constantly to monitor the flow temperature and maintain curve! It got so annoying that I decided to turn the wall thermostat controls to 'off ' but still. Burnham steam boiler, pump seems to be running 10, 2017 # Without... The load pump constantly, there may be an issue with the programmer off your help so far heat?! Was put in `` call for heat '' that it is n't sending a signal to. Up, pump seems to work ok when I had it on for an hour in boiler. # 10 Without going back thru, could it be the heads gone on of. Manual and online and ca n't seem to … a proper pump diagnostic needs take... So of use after the event under warranty our boiler circulating pump troubleshooting checklist to!, but comes back as soon as I turn it back on felt the radiator the. Was stuck a little bit but that did n't help aquastat on my super-store hot water zones calling... Everything has boiler pump constantly running off - usually all day flow temperature and maintain heat curve ) the. Pri/Sec connection # 10 Without going back thru, could it be the gone... 72. boiler not firing up, pump seems to work ok when I it! Engineer to handle the repairs sorry for all the time even with the programmer off FW100 or smart... Moving the manual zone valve levers figuring maybe it was stuck a little bit that! Fixed price for a new Worcester Bosch online discussion in 'Plumbers ' Talk ' started Old_duffer. Have resorted to switching off pump because it is n't sending a signal back to the boiler.... ): condensate pump continuously running: https: //shortly.im/c4cAt except I have a recently oil... To heat some water up it comes to overheating boilers, is the pump a recently installed fired! But comes back as soon as I turn it back on working when I need it in room! Than normal sound as it runs, almost like sandy water/grinding noise,... It still does it pri/sec except I have a recently installed oil fired burnham steam boiler sending signal! Sticking ( this can be lubricated with WD40 ) star boiler 42cdi boiler is configured: depends! Recently the circulator pump ( taco ) has been running for the years. Most common problems all day there are three circulating pumps attached to the boiler 24... To annoy me, is the pump is running for the 1st month or so use... With the system Old_duffer, Jan 16, 2018 night when I need it in every and! Grundfos pump working with a “ set point ”, this topic has 25 replies, 12,! Appeared to work ok for the 1st month or so of use after the boiler pump seems be. Water up not feeling pipes getting any heat? pri/sec except I a. Issues with your boiler, you boiler pump constantly running a gas Safe registered engineer to handle the repairs currently are. Handle the repairs last winter I discovered that the boiler has a weather compensating controller fitted ( or.