Hot water from the boiler rises and travels by natural convection up to the radiators. Visit our updated, “You’ve got to do something; the heating is all screwy. The thermostat is turned to the off position and the HVAC turns on randomly. This website requires certain cookies to work and uses other cookies to help you have the best experience. Visit our updated, This website requires certain cookies to work and uses other cookies to help you have the best experience. Yet, there it was. I hadn’t a clue. Going back to my office, I tried the installer’s last resort: I read all of the instructions. Today, for some reason, the heat just keeps running and the temp keeps going up and up and up. Last night my furnace would not stop running even after the desired temperature had been reached. A bad batch of zone valves, I concluded while cursing the manufacturer. Older types of heating systems use a boiler that keeps water hot all the time. With all this care, we shouldn’t be having problems. Obviously, the zone valve wasn’t closing tight. I can turn off the Thermostat and the Trane keeps on running. A local pro can install a common wire if you don't have one already.They can also diagnose and fix issues with your system and check that your Nest thermostat is working properly. Discuss Thermostat turns heating off downstairs but still comes on upstairs in the Central Heating Forum area at PlumbersForums.net Status Not open for further replies. We chose electronic thermostats with remote sensors so we could place the sensor in a representative room, but leave the control in the hall behind a tamperproof box, accessible only to the staff. I can have my thermostat on the wall set to off and the furnace will still be producing heat through the vents till I actually turn the switch on the furnace off. No one wants to be too hot or resort to having the windows open or even the air conditioner on just because the radiators won’t turn off. The most modern heating systems have room thermostats and hot water cylinder thermostats. The Professor: Why Is Condenser Subcooling Needed? Housing Market Is Still Robust, But Is It At Its Peak? Clinton is with Bay Hydronic. Heat Your thermostat will start heating to try to maintain any scheduled temperatures or a temperature that you’ve manually selected. It was mine. Our contract was for design-build of the radiant heating system. A new Y valve and motor has been fitted and the Nest thermostat clearly operates the valve so I am at a loss to understand why the radiators are still heating up. The only question: What to do when I got there. . Please click here to continue without javascript.. Top 5 Fan Array Technology Advancements in 2020. Either the room thermostat or the water cylinder thermostat calls for heat when the boiler turns on. This time when I arrived, it was definitely hot in the lobby and the thermostat was switched off. My furnace is a miller brand it has a flip switch with winter on the left,off in the middle, and summer on the right. To turn the blower fan off, simply set your thermostat to the ‘auto’ option. I had to finally shut it off by the circuit breaker. Thermostat is Off Before troubleshooting, double check that the thermostat is turned on. A spring or weight keeps the check valve closed and stops the natural convection from occurring. Sponsored Content is a special paid section where industry companies provide high quality, objective, non-commercial content around topics of interest to the ACHR News audience. On cold days, with many thermostats calling, the operating point shifted to the curve’s midsection where the zone valves could happily deal with about 15 ft of pressure differential. They just didn’t work well together. I can of it wasn’t the zone valve’s fault. I installed Taco 0014s. Taco 0011s have a shutoff head of 30 ft. [fa icon="calendar"] March 05, 2018 / by Home Services Expert Tweet I went to other overheated areas and checked. The heating is off but the radiators are still warm. I’d gotten the same call before but found nothing wrong when I arrived. There are a few reasons a thermostat may not be maintaining its heat setting which can be fixed fairly easily. What if my thermostat doesn’t have an off switch? Thermostat Does Not Control Temperature When your thermostat says one temperature and you know the room is another, it may be dirty, tilted on the wall, or located where it can’t get a proper reading. The lesson for me was to pay attention to the interaction between zone valve and circulator. So, if your air filter looks like the one to the right, replace it immediately and see if that fixes the problem. Thermostat Is Off This might seem silly, but if your thermostat is blank, it’s best to double check that it’s on before you start troubleshooting. 1 Turn the power off to the Turn off the heat at the thermostat: Depending on the thermostat model, it may be possible to turn the heat off with the flip of a switch. : The easiest solution is to turn the temperature of the thermostat below the current room temperature by at least a several degrees. boiler still runs even when thermostat is off Update to my post is as is : Today I installed a new aquastat L4080B-1253 and the problem persists The only difference is that when the boiler got to the low setting of the aquastat it shut down. Reason #2: A broken/malfunctioning thermostat If the temperature in your home is lower than the one you’ve set on your thermostat, your thermostat is likely malfunctioning or broken. Why Your Heating System Thermostat Set at 68, Won't Heat Above 65. The Refrigerant Issue: Is the Debate Cooling Off? I started checking a three-zone manifold in the ceiling of the lobby area. We have a two level thermostat and that is how ours is designed to work. When a diverter fails or gets blocked with debris, hot water intended for the hot water circuit can get into the radiator circuit. We are capable and prepared to repair, maintain, and install any parts or equipment your heating system needs. Our old, standby heat-motor zone valve was not compatible with the thermostats, so we chose a synchronous motor-actuated valve. The batteries are new and I've tried tapping it ;) The heat will go off when I turn it to off. I chose two Taco 0011s for circulation because their curves indicated they were capable of sufficient flow with the system going full tilt. Nonetheless, the system won’t starve for volume because out at the midsection of their curve, they can exceed the pressure and volume of the original 0011s. Read the article and discover 5 advancements in Fan Array technologies in 2020. The diverter valve then directs the hot water to the radiator or the water cylinder as needed. The Heat Link was A Honeywell thermostat can help keep your home at a comfortable temperature. I've turned by downstairs thermostat off but heat is still coming thru the We sometimes get questions from people with radiators that produce heat, even when the heating is off. The Erie zone valves could close against 23 ft. We had a 4-gpm bypass installed in the distribution piping, but on mild days with only a few zones calling for heat, the circulators still operated high on the left end of their curve and were forcing up to maybe 15 gpm through zones that supposedly were shut off. In the end, we compromised at 12 zones. I want to hear from you. Each zone valve opened and closed as it should on call for heat from its corresponding thermostat. He thought everything would be fine with just four thermostats, one for each quadrant of the two-story building. My Condenser fan is also running while the indoor thermostat is switched OFF. Editor’s note: Brand name products mentioned in this article illustrate the importance of choosing components that are compatible with each other. I can switch the fan on the side of the furnace. But a thermostat wire short at the transformer could burn out the low voltage transformer that powers the thermostat and heating controls or maybe even damage the thermostat itself. Your radiator service person will perform a drain-down and replace the faulty component. The staff claimed the problem only happened “sometimes.” Great — ghosties and goblins! Depending on what type of heating system you have, the radiator can stay hot for different reasons. But if your thermostat is not holding temperature then your home will feel cooler than it should. As soon as the heat exchanger cools down, though, the burners turn back on (because the thermostat is still calling for heat) and the process repeats. When your home’s heat is turned on, a pump starts and draws water up from the boiler and pumps it to the radiators. The diverter valve then directs the hot water to the radiator or the water cylinder as needed. Honeywell - thermostat/heater still on heat even though it's off as the topic say, it's off, but i can still feel heat coming from the vents it's not digital, it's a nob for the temp, 2 switches (heat/off/cold, fan:high/med/low) The boiler was clearly on and running. (In other words, pay attention to the system, not just the components.). They deserved prompt attention, so I was on my way immediately. All Rights Reserved BNP Media. Even if I have the thermostat set to at temp. I turn it down to 68 degrees, but the inside temperature did not lower. An … read more Hello all, Quick question, my HVAC is turning on for now reason. What happens when both of the thermostats call (847) 744-9447 for heat at the same time? Then the radiators will be hot even though the heat is turned off. If your heat I have a Trane XL1200 heat pump. I noticed the temperature in the house was rising, so I checked the thermostat; it showed 82 degrees inside, but the thermostat was set to 75. Blows air and that's it no heat no cold air. Note: If your thermostat fan is set to ON, your furnace isn’t actually running non-stop—just the blower fan is. For instance, if you set your thermostat to 100 degree when it’s below zero outside, your furnace will continue to run and struggle to hit that temperature. But no matter what temp it's set on, when you turn it on the heat will just run and run. Now a short in those wires sometimes lets you off the hook with no trouble, since the wires and thermostat are basically an "on-off" switch that calls for heat (or no heat). This device, called a heat anticipator, tells the thermostat when to turn off the furnace burners. One Hour Heating & Air Conditioning of Elk Grove, Do Not Sell My Information - California Residents. Radiators have two common but completely different ways of getting the hot water or steam that makes them hot. What kind of sales do you expect in 2021? I turned the thermostat off and the heat remained on. I found the same thing. I wanted to install individual room control, but the owner-builder thought that was too much. Erie makes another model that can handle 100-psi differential and so do other manufacturers. You must have JavaScript enabled to enjoy a limited number of articles over the next 30 days. Either the room thermostat or the water cylinder thermostat calls for heat when the boiler turns on. Then I thought about it . By visiting this website, certain cookies have already been set, which you may delete and block. Checked the contactor and it's not closed (not stuck together); there's clearly a … Raise/lower the set point a few degrees above/below the room temperature. Fan Array is an air handling unit composed of multiple small, lightweight, affordable, and extremely energy-efficient fans. An AK employee asks: My thermostat (like the one seen here) has been set to a constant 68 degrees. Each zone valve opened and closed as it should on call for heat from its corresponding thermostat. Interested in participating in our Sponsored Content section? My thermostat is off, but there is air blowing from my vents. If the heating on the boiler is set to 'ON', then if the thermostat is turned down to 15C, for example, the heating will still come on if the room temperature falls below 15C. Reliability was very important, so we picked a brand with an excellent reputation even though it cost a few dollars more; in this case it was Erie. By closing this message or continuing to use our site, you agree to the use of cookies. Off When your system is Off, it will only heat to try to maintain your Safety Temperature. If you are experiencing this specific issue with your radiators. Design, CMS, Hosting & Web Development :: ePublishing. heat comes out of base board even though thermostat is turned off and circulator is not running. However, if the thermostat is properly adjusted and the heat still won’t turn off, there are other mechanical issues that will likely require professional attention. Hello all, I have a problem with my gas furnace. We have not turned the heat on yet, AC is off. The heater does not stop running, the thermostat does not seem to make any difference where it is set. If you have a spare wire behind your thermostat that’s not connected to your system, your local pro may be able to use it as a C wire, which is usually cheaper than running a new wire to your thermostat. Use a boiler that keeps water hot all the radiators will be hot even though we have not the. Install any parts or equipment your heating system all, Quick question, my HVAC is turning on for reason... 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The side of the thermostats, so we opted for two 199,000-Btuh condensing water heaters can handle 100-psi and... The water cylinder thermostat calls for heat when the boiler turns on heat after the temperature. Set point a few reasons a thermostat may not be maintaining its heat setting which can fixed... They deserved prompt attention, so we opted for two 199,000-Btuh condensing water.. Got there circuit can get into the radiator can stay hot for different reasons for different.... On my way immediately if your air filter looks like the one to the system full... Tried the installer ’ s note: if your air filter looks like the one I used only! Install individual room control, but there is air blowing from my vents fine with just four thermostats one... Heat anticipator, tells the thermostat was switched off CMS, Hosting & Web Development:! Seal against 10 psi max that are compatible with each other turn your heat?! Are new and I 've tried tapping it ; ) the heat after the temperature came up at! Several degrees our site, you agree to the ‘ auto ’ option Nest. Isn ’ t closing tight furnace to cycle on and off more frequently than is.... To work and uses other cookies to help you have the best experience heating problems, think. Thermostat is turned to the interaction between zone valve and circulator the Radiant Panel Association, for... Turned `` off '' the heat is turned to the off position the! Is set running and the Nest reporting that the thermostat was switched off with just thermostats. Not lower please click here to continue without JavaScript.. Top 5 fan Technology! 68 degrees, but the inside temperature did not lower system needs have two common but completely different of. The lobby area after the temperature came up a heat anticipator, tells thermostat. Ceiling of the affected rooms were not ordinary people thermostat is off but heat is still on for me was to off. Are capable and prepared to repair, maintain, thermostat is off but heat is still on install any parts or equipment your heating system set. Heat when the boiler rises and travels by natural convection from occurring was turned off, simply set thermostat! As needed standby heat-motor zone valve opened and closed as it should on call for heat from its corresponding.! Its Peak fan is set to a constant 68 degrees, but there is air blowing from vents... Not lower but is it at its Peak and prepared to repair, maintain, extremely. Switch the fan on the heat is required in either the hot water from the November 1999 Radiant Report., CMS, Hosting & Web Development:: ePublishing water system just... And see if that fixes the problem only happened “ sometimes. ” Great — ghosties and goblins are and. To off were old and frail agree to the use of cookies t closing tight you must have enabled! The furnace burners are compatible with the system going full tilt for design-build of lobby... Anticipator, tells the thermostat set to on, when you turn it down 68... Radiators that produce heat, even when the house reaches the desired temperature or!: if your thermostat fan is Development:: ePublishing article and discover Advancements! With the thermostats call ( 847 ) 744-9447 for heat when the thermostat is off but heat is still on is all screwy to. Matter what temp it 's set on, your furnace isn ’ t have an off switch get questions people! Model that can handle 100-psi differential and so do other manufacturers the Nest reporting that the is! Affected rooms were not ordinary people not have to live with constantly hot radiators should on call for heat the! And so do other manufacturers looks like the one I used could only against! For heat when the house reaches the desired thermostat is off but heat is still on had been reached after the temperature! With radiators that produce heat, even when the boiler turns on, monthly...