Step 1: Test the coolant. It’s much more cost effective and energy efficient to cycle on and off to only push air in the house when it’s necessary to maintain the temperature. With all the options available for setting your programmable thermostat, it’s easy to get confused. Join Date: Mar 2003. If there's a big difference it starts out on High then kicks into Low automatically when the temperature gets closer. On many thermostats, you’ll see a small lever that moves along a calibrated scale (not the heat temperature lever) and may be marked “longer.” This is the heat-anticipator adjustment. If i turn the fan on in manual mode, the fan works. My AC blower won't kick on when in the AUTO fan position. If you are not sure about the maintenance intervals, you can look up your car to find out a bit more. A Honeywell thermostat can help keep your home at a comfortable temperature. It's possible that the speed the A/C uses is dead. If the problem persists, request for an HVAC specialist to check the thermostat. The gas boiler does indeed get the signal to turn on - only the fan does not work. The bottom set point is the heating temperature. September 6, 2013. I have a Goodman air handler for a Goodman 5 ton a/c (not used for heating). It is definitely not the batteries, and I haven't had any luck with moving the switch around. Continue to the Thermostat Screen section. I set the thermostat to 71F (and hold the temperature) and the furnace to 200F (when it drops to 180F, the boiler automatically activates to go to 200F again). 61 satisfied customers. I installed a new Hunter Thermostat. Got home from the Brewer game this afternoon and noticed the house was warm(78). What to do if the Blower Fan Runs Continuously and Won't Shut Off? Went outside and the condenser and fan was running fine. However, in "AUTO" mode (the setting I always have it) does not seem to work. We have come up with a list of items you can look into to determine the problem with a faulty thermostat and some solutions. It relays voltage to run the fan when the air conditioning or electric heat is calling. 3) Deactivate aggressive recovery. If the thermostat is otherwise working as it should, it could be that its Schedule Hold feature is activated. Dirty wires can prevent your thermostat from working. AUTO means the fan turns on “automatically” ONLY when your system is heating or cooling your air. Is your heating working now? If that's not the case, then try the following steps: 1. The thermostats constantly read the temperature of their specific zone, then open or close the dampers within the ductwork according to the thermostat's settings. Verify that the thermostat is switched to cool mode and has a cooling set point below the room temperature reading. Wait for a few minutes. I am thinking that it could be the thermostat is not hooked up properly or not working properly. I set the thermostat to 71F (and hold the temperature) and the furnace to 200F (when it drops to 180F, the boiler automatically activates to go to 200F again). Brown - X Another problem which may cause your thermostat not reaching set temperature is that maybe your thermostat lost its power. See if that gets your thermostat to work again. Setting the fan switch to "on" means the fan runs continuously, up to about 200 extra hours a month if left on that setting, using more electricity and putting potential wear and tear on parts. While on this system mode, the ecobee will display two set points—one for heating and one for cooling. September 6, 2013. pmhabo, Jul 18, 2011 #1. jadnashua Retired Defense Industry … White - w2 FAN Button AUTO and ON functions on Digital Thermostats How Should I Set the FAN ON-AUTO or FAN MAN-AUTO Switch on My Thermostat? These are the only languages supported at this time. Your thermostat should be placed in an area with a neutral temperature meaning the environment not affect the surrounding temperature. I know this probably isn't as difficult as I'm making it out to be, but I'm having a hard time understanding the Auto setting on my Honeywell TH5220D thermostat. However, it won’t work in Auto mode – ie when I turn the stat way up, neither the green light on the receiver, nor the pump/boiler, come on. When the thermostat reaches your temperature setting, the system, including the blower fan, shuts off. Choosing the setting that is right for you . White(looks like its just jumped from e to w2). Check your fluid levels and make sure the problem from overheating is not coming from your fluid tank. Check the thermostat's display to confirm that there's a call for cooling, usually indicated by the words "cool on" or a snowflake icon. 5) Blower doesn't come "On". We moved into a new house. Call One Hour Heating & Air Conditioning® of the Bay Area for a better walkthrough of your home’s heating and cooling adjustments. It might be a very simple solution. For example, you can set the fan to run all night and automatically turn off in the morning. How does the FAN ON-AUTO function on a digital thermostat and how should I use it? Display settings are only available on your thermostat settings (and not the mobile app or web portal). Yellow - Y Replace the screws and tighten them clockwise. If it’s in the “on” position, your fan will operate at all times, regardless of whether or not your furnace or air conditioner is running. Select “Auto” to allow the thermostat to switch between heating and cooling based on room temperature and the selected heating and cooling set points. If you see that on the screen of your thermostat is not visible either it’s dark or blank, then you are experiencing this problem. There is better dehumidification in your home during the summer months. furnace works without the auto setting but will not turn off when it gets to the set temp. When your thermostat is set to “auto,” your fan will only run while your HVAC’s heating or cooling cycles are running. Here, we discuss a Honeywell thermostat not following schedule, and how to fix that. The top set point is the cooling temperature. pmhabo, Jul 18, 2011 #1. jadnashua Retired Defense Industry Engineer xxx. Questions & answers about using and wiring the thermostat FAN AUTO… Thanks! The thermostat should start working. The heating system is working fine, except that when the heater is not engaged and I turn the fan switch to ON the fan does not come on. When Auto Mode is selected two set points will appear on the main screen of the Sensi app. What is a zone? If you have a system with a dedicated fan wire, you can manually turn on the fan with the app or your thermostat, or set a fan schedule. But why would schedule following ever be OFF? The issue may not be your thermostat at all and could likely be a mechanical problem with your heating, ventilation, and cooling unit. You've fixed your heating! Jason Whatley. Please someone help me. How does the FAN ON-MAN switch work? I have a weathermaker 8000 and I replaced the furnace. How can I fix it? its electric. If you want to test it, set it for a low temperature, so that the AC unit would start right away. The thermostat detects the temperature of the room and compares it to the desired temperature setting. The fan works just fine when set to AUTO with the AC but not with the heat. On your thermostat: Go to Settings Nest Sense Auto-Schedule. Central heating problems can often be down to a broken thermostat that won’t work. YES – Congratulations! Hi, just wondering if anyone can help me here. The only way to get the furnace to start up is to place the system in "FAN" position to run the furnace continuously. The location of the thermostat depends on your car. Frequently shutting down and restarting the thermostat can happen due to various reasons, but some of the major reasons are defects in thermostat, Heating in thermostat, Screen is not responding, and backlit LED fault or your thermostat may be updating itself. The top set point is the cooling temperature. Then, press the “set” or “program” button and select the waking time at which you’d like the heat or air conditioning to start running. If your digital thermostat isn't working so your heat or ac isn't turning on. If you are not sure about the maintenance intervals, you can look up your car to find out a bit more. The thermostat is the issue not your HVAC equipment, the best option is going to be a replacement. When the thermostat reaches your temperature setting, the system, including the blower fan, shuts off. I can also turn the fan mode to "on" and the fan will run. There are a few reasons a thermostat may not be maintaining its heat setting which can be fixed fairly easily. Then, press the “set” or “program” button and select the waking time at which you’d like the heat or air conditioning to start running. When I have the fan switch on the thermostat (non programmable Honeywell) set to auto and the switch set to cool - … AC blower does not work in AUTO position. Green - G Replace the cover on the thermostat. 10,085 views. Typically, it’s not necessary for your heater to continually push air through your home to maintain the temperature. It... On my old Rheem thermostat there's 7 wires: Member. It does work in Manual mode – so if I switch the receiver to Manual, and then its other switch to On, the pump & boiler come on. The above steps are implemented with the assumption that there is no problem with the main power supply. Posts: 5,548 Received 0 Votes on 0 Posts It's in the stat. The auto setting prevents your system from running around the clock. I can hear the fan running, but my thermostat still won’t work. You’ve probably seen the auto setting on your thermostat, but you may not really know what it means. The heating system is working fine, except that when the heater is not engaged and I turn the fan switch to ON the fan does not come on. My older thermostat only had on and auto, and I can’t figure out what circ is for. When I have the fan switch on the thermostat (non programmable Honeywell) set to auto and the switch set to cool - … There is better dehumidification in your home during the summer months. Open your car hood after your car has had some time to cool off. the auto setting on my thermostat isn't working, it just clicks on briefly and then clicks off. We moved into a new house. Pros to setting your thermostat fan setting to AUTO. Member. When you know that you have set the thermostat to cool at 72, but your family is sweating and complaining about the heat, this could be a warning that your thermostat isn’t relaying the signal properly. 2) Thermostat calls for heat How can I fix it? Outside was 91. Matters that include house unable to be cold or hot may more likely be a problem with your furnace, A/C, heat pump, or ventilation. To set a thermostat, start by programming the correct date and time on your thermostat so that the program will run correctly. 1) Set mode to heat and raise the setpoint above the room temperature. First, simply set the thermostat to the right temperature and setting. AUTO means the fan turns on “automatically” ONLY when your system is heating or cooling your air. I have a Rheem RHPL-HM2421JC air handler, a Rheem 1.5 ton heat pump condensing unit, and a comfort control thermostat. I switch to the heat and raise the setpoint above the room is too or. 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