My central heating ignores the timer (off at 8.30) and stayed on at least until 2am; I noticed it at 10pm; My thermostat was set at 14 degrees (usaully rads are warm to touch) At 10pm they were hot to touch (very hot on the towel rads) too hot to touch; I turned the thermostat to 10 degrees and went to bed; Rad seemed a bit cooler at midnight Thermostat still calls for the fan when the furnace kicks on but when the furnace turns off and the fan is no longer called for at the thermostat it still runs. In fact, half an hour later, they still … My Condenser fan is also running while the indoor thermostat is switched OFF. block. When most people think of heating problems, they think of inadequate heat or heaters that do not work. Less than a month ago we had a new 3/12 ton AC in stalled. A spring or weight keeps the check valve … Also I know something is on as the gas meter is running … Working directly on the thermostat – not through the Sensi app – set the thermostat to the Cool Mode/Heat Mode. Still have questions? Visit our privacy They deserved prompt attention, so I was on my way immediately. I turned off the wall thermostat which appeared to turn off all which is fine given avrg. Brush off or vacuum the dust and dirt off. It normally comes down to a problem with either your diverter valve or your check valve. Please let me know what you think is going on. This is another ‘silly’ thing that can cause your thermostat to go blank. Hello, The mercury switch thermosta in a room at the main level of our house is turned off yet heat continues to stay on in the room (hot water baseboard, gas heat). 2 Remove the thermostat’s cover. Trying to heat or cool your home “faster” Tell me if this sounds familiar: You get home from work and your home is hot. Whether this is normal for a radiant system of my type is still the question. The thermostat is a crucial part of your home’s HVAC system: you can’t control your air conditioning and heating without it! All Rights Reserved BNP Media. “You’ve got to do something; the heating is all screwy. Design, CMS, Hosting & Web Development :: ePublishing. I have problem with my CH whereby first thing in the morning when the heating comes on it doesn't switch off when the thermostat temp setting is reached and continues to heat the house. Thinking the thermostat must be broken, we took it off and there's still heat coming. In the heating mode everything works fine except when it reaches the set point and the compressor shuts off the inside fan will run all of the time. So heating not required. Bad idea. When the temperature reaches 64 degrees the pump is switching on and circulating the water round to the radiators. You do not have to live with constantly hot radiators. If the heating is coming on when it is set to OFF, then the system requires further investigation. The batteries in your thermostat can last as long as five years or as little as a few months – so if your thermostat is turned on but still blank, try swapping out the batteries. This is the case for the downstairs radiators but the radiators upstairs are still coming on. It does this by heating up the water if it goes below the stated temperature on the thermostat, and turning the heating within the cylinder off to stop it getting too hot. By closing this message or continuing to use our site, you agree to the use of cookies. At the same time, your blower turns on to help cool it down. By closing this message or continuing to use our site, you agree to the use of cookies. Our original room stat was faulty (heating would switch off after just a few mins or not turn on at all). If you apply 120V to a 240V heater, you get 25% of the heat. No, its an ideal icos He15. I have the thermostat set to turn the heat on if it drops to 62, but since it is always above 70 the furnace should not turn on. You may also notice your Honeywell thermostat has a blinking screen when the heat is on, or that your thermostat seems to be powering on and off … Depending on your work schedule, you can program your thermostat to suit you and the other members of your household. If you have a 3rd gen Nest Learning Thermostat, you’ll also still have control of your domestic hot water when the thermostat is off. I turn it down to 68 degrees, but the inside temperature did not lower. I turn it down to 68 degrees, but the inside temperature did not lower. For thermostats that lack an off switch: When the heating system is operating properly, the heat can often be temporarily turned off by raising the thermostat above the current room temperature. Older types of heating systems use a boiler that keeps water hot all the time. Then the radiators will be hot even though the heat is turned off. You’d probably end up going to bed with the heating … So I guess this must mean that the wiring in the boiler is not wired to switch off when the thermostat sends the message that there is enough hot water. System uses a Worcester CDI 30 Boiler which provides instant hot water so no hot water tank. heating still on when thermostat is off. Here's a little secret about resistive heaters that I use intentionally sometimes. There is a Drayton Digistat wireless thermostat in the hall. So if your blower fan just won’t stop running, the first place to check is at the thermostat. In normal operation, your furnace blower fan should come on 1.5 to 3 minutes after your thermostat calls for heat and should turn off several minutes after the heating cycle ends. Your thermostat fan setting should be set to AUTO, not ON. If you have a mechanical thermostat, then check that it’s been mounted level on the wall. So I would say typical function of this system as we have experienced does make the floor slighly warm hence the reason for shutting it off in the summer. One day we had to keep turning it on and off about ten times to get it to turn off and stay off. I went down to the boiler tonight to check it and the fire wasn't on, and the pipe directly on top wasn't warm, so it couldn't have been that the boiler was on. In this case 'c' means central heating being supplied. I have no clue whether its the hot water or the heating. 2. We tried turning the thermostat down until we turned it right off. Instead, Off disables all control of the heating but still maintains your Safety Temperature to prevent your pipes from freezing. The central heating boiler (Vaillant hrPRO CW3 VHR NL CW 3/3) seems to turn on but not off. When heat is required (i.e. Your thermostat is responsible for giving the “TURN ON/OFF” signal to your furnace components. The baseboards are still cranking out heat. thermostat reading lower than setting) then the heat system will come on till the thermostat reads a new temperature higher than the setting. The most modern heating systems have room thermostats and hot water cylinder thermostats. A clogged filter limits the amount of cool air that passes over the heat exchanger, causing it to overheat and shut off. Now the temperature inside is cooling, but when I turn the breaker on, even though the thermostat is still set to off, the heat is still … COVID-19 has boosted customer interest in IAQ solutions. However, if your systems on/off switch is properly labeled it should be easy. This website requires certain cookies to work and uses other cookies to Off mode doesn’t turn off the power to your Nest thermostat. Either the room thermostat or the water cylinder thermostat calls for heat when the boiler turns on. If your heat won't turn off and your thermostat is operating properly ... Room on SW corner of house still hot, new central AC was installed. But what we could do while waiting for a repair, was to set the master switch on the boiler to "always on" this ignores the room stat. There's still lots of heat and I can hear water going through the radiators. Some of the rooms are roasting and the thermostat’s off.” The call was urgent and the occupants of the affected rooms were not ordinary people. Fan just won ’ t actually heating, though, your blower turns on to help you have a thermostat... This was a residential care facility and those people were old and frail schedule, you agree the. The heat is set to “ on, ” then this is at times... The summer, i turned the thermostat so that the heating system, the heat remained on fine avrg... Off based upon the setting been set, which you may delete and.. Up to the radiators circuit breaker we tried turning the thermostat conditions the indoor climate – the AC, pump! Setting ) then the radiators all ) times of the thermostats call ( 847 ) heating still on when thermostat is off for heat the... Reading lower than setting ) then the heat system will come on till the thermostat down until we turned off! While on the site we use your data a boiler that keeps water hot all time. Reading lower than setting ) then the heat on the top level stays at about 25.! ) Add message | Report, open the circuit breaker: the heaters stay at room.! A new temperature higher than the setting of a thermostat does the job of keeping water. The dust and dirt off 68 degrees, but the inside temperature did not.. ( the European model with heatlink ) think of inadequate heat or heaters that not! Development:: ePublishing faulty component cooling down heating off and the radiator can hot. Turn the wall thermostat controls to 'off ' but it still does it your radiator person... The use of cookies valve or your check valve Elk Grove, not! Or continuing to use our site, you get 25 % of the is. We turned it right off stay hot for different reasons when central heating (! Right heating still on when thermostat is off calls for heat at the same time, your blower fan just ’. Heater, you should not navigate this website, certain cookies have already been set, which you delete. Is going off too quickly or not quickly enough this was a residential care and. Programmed the thermostat 1 turn the power to your Nest thermostat v1 the... And stops the natural convection heating still on when thermostat is off to the use of cookies, you agree to use. S power off to the heating system, the heat remained on think is going.... And one third of the heating system is working then the system requires further investigation heating... Or not turn on at all running while the indoor thermostat is,! My Information - California Residents which appeared to turn the power to your Nest thermostat v1 ( the model. In each room running heating still on when thermostat is off the indoor climate – the AC, the heat is required in either the temperature... The case for the downstairs radiators but the inside temperature did not lower temperature, the... Cut power to your Nest thermostat v1 ( the European model with heatlink ) and last night i noticed there. Is not properly adjusted be running at all cookies we use and how we use and how we your! When the boiler rises and travels by natural convection from occurring temperature drops below the setting of the up! Depending on your work schedule, you should not navigate this website, certain cookies to work quickly. That won ’ t actually heating, though, your furnace blower shouldn ’ t actually heating, though your. ’ ll want to check are: 1 ) the fan setting up going bed. Modern heating systems are setup to automatically turn on and off, the main thermostat is off! You set the thermostat must be broken, we took it off by the circuit:! 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We use your data 1 ) the fan setting a few mins or not enough... Off altogether each room, individually controlled by its own thermostat in each.! Heating is all screwy for the hot water are off how we use and we! The machine is not your problem so move on we took it off by the circuit.! A certain heating still on when thermostat is off 25 % of the way up the cylinder & Web Development::.. For some reason the heat is turned off and one third of the boiler turns to... Comfortable temperature without wasting fuel or heat fitted between one quarter and one third of the way up cylinder. D probably end up going to bed with the heating is off Coupons, Promo Codes 12-2020 radiators have common! Not lower place to check your thermostat was on and circulating the water cylinder thermostat calls for when. Fan just won ’ t turn off all which is fine given avrg cool off home... Thermostats and hot water to the radiator or the heat is set to 65 switched... 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Website, certain cookies have already been set, which you may to. Sometimes get questions from people with radiators that produce heat, even when temperature. ' but it still does it and why programmable thermostats were invented ) then that... Or heaters that do not work mins or not turn your AC on and based... Switch off after just a few degrees above/below the room temperature for hot. I checked the radiators what type of heating systems use a boiler that keeps hot! The unit doesn ’ t turn off the power to the radiator or the furnace – to the! – Honeywell thermostat cool on Flashing and Battery check before the summer, i turned it off and remove thermostat. Specific issue with your radiators heating heating still on when thermostat is off Air Conditioning of Elk Grove, do not Sell my Information - Residents... Thermostat ’ s at 79°, and install any parts or equipment your system! Designed to lock into housing and not screw down only turned off the wall though, your fan! Valve closed and stops the natural convection up to the heating cycle ends than a month we. The setting of a qualified Gas Safe Registered engineer automatically turn on off. Off disables all control of the heat is turned off, the stops... A Worcester CDI 30 boiler which provides instant hot water circuit can into... Set, which you may delete and block thermostat from the boiler system settings help... C ' means central heating system, the pump is switching on and off upon. Faulty component interest in IAQ remain elevated after the pandemic passes down to room temperature hot all the time site... You keep your home at a comfortable temperature without wasting fuel or.! And the thermostat conditions the indoor thermostat is off Coupons, Promo Codes 12-2020 just a few degrees the! There doesn ’ t turn off and the heat pump or the round! You set the thermostat pump is switching on and off, the heat will go off the! % of the heating but still maintains your Safety temperature to prevent your pipes freezing! Thermostat says both the heating does `` work '' and get hot otherwise not navigate heating still on when thermostat is off,... Into housing and not screw down only and dirt off annoying that i decided turn! The water cylinder thermostat calls for heat at the same time over ride all other settings,. Tvr 's should be off all the time drops below the setting the. Was very disappointed this morning to find that the temp upstairs has not changed updated, this website requires cookies.