The furnace won't stop at the programmed temperature set ponts
The furnace keeps on running when it should be shutting off. You have a 70 degree set point to shut it down and it's 71 degrees in the room, and the furnace keeps on running - why? Shouldn't it shut off as soon as it reaches 70 degrees?
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If your AM04 fan heater runs for a few moments then shuts off, this is likely to be because the target temperature you've selected (shown on the LED display on the base of the machine) is lower than the ambient room temperature. The intelligent thermostat is engineered to ensure the machine will only run as needed to maintain the target temperature you've chosen.
Using the remote, or the controls on the base, to raise the target temperature by a few degrees should resolve the issue. I've included our Getting started guide below which shows how to adjust the temperature.
If you would like some further help from our experts after you've given this a try, please call 0800 298 0298 (UK), 1-866-693-9766 (US), 1-877-397-6622 (CA) or 1800 239 766 (AU).
AM04 has an intelligent thermostat which you can set to the degree. The machine will then monitor the room temperature and cycle on and off as needed to maintain the temperature you've chosen. If the heater doesn't seem to be running, it may be because the temperature you've selected is below the current room temperature. When the room temperature drops below the temperature you've picked, the heater should come on.
For additional troubleshooting to check your machine is working correctly, you might like to visit our Support page:
if you have an electrical meter this is how to test for bad t-stat heating relay. (this is for the most typical furnace setup in a typical home) first you will need to find and do several things at the furnace. find the MAIN furnace switch and turn off. switch should be mounted outside of furnace on either side of furnace cabinet. remove both furnace doors. find the electrical circuit board, it will be the square thing that almost all wires go to or come from. find the 24v (t-stat) connection screws on the circuit board. they should a row of small phillips screws, and there should be a minimum of 5 screws in a row. the screws will be labeled as follows (not in certain order) R W Y G C . The screws you will be concerned with are R, W, and C. If there is not a C screw you will substitute the C screw for a unpainted part of the furnace cabinet in your testing. The last thing to find is the door switch which should be mounted behind the lower door. It is mounted so when the door is attached the switch is depressed. Use some tape or something to depress the switch without the door on. you will not have enough hand to do it manually during testing. get your electrical meter and your ready to test. always remember that if the Main furnace switch is turned on any of the electrical connections, motors, etc. inside the furnace could be energized at any time.
step 1 : with main furnace switch on, both furnace doors removed, and door switch depressed go to your thermostat and turn a minimum of 5 degrees higher than ambient. if t-stat isnt on then something you did is wrong. check switches.
2: with newer t-stats there can be a delay. so wait 5 minutes then go to furnace.
3: put electrical meter in AC and in correct range if you have a cheapo meter. you will be reading 24v so correct range is the closest to 24v but must be above 24v. take your leads and put one on circuit board screw labeled R, other lead on C. you should read 24v or similar. minimum voltage should be about 22v. anything less than 20v there is a problem far before your thermostat. if you read 24v move on.
4: take your leads and put them on the W screw (heat) and C screw (common24v). You also should read 24v. If you get a reading less than 20v or no reading at all then you either have a bad thermostat or bad thermostat wire.
Only the remote decides when the fan reverses. Weird, I know. Depending on room temperature and selected temperature (on the remote), the fan will reverse direction. For example: If you set the remote temperature (set temp.) for 74 degrees and the actual room temperature is 70, the fan will reverse to bring the warmer air (which is always closer to the ceiling) down and warm the room until the set temperature is reached, then the fan turns itself off. The remote monitors room temp and selected settings and repeats the cycle.
Thermostats don't cool or heat. They are just the control device that tells the furnance or AC to operate and register the present temperature and tell the furnance or A/C to shut off, once the desired temperature has been reached.
Most programmable thermostats will take at least 1-2 weeks to "learn" how long to run the furnance or A/C in order to reach the desired temperatures you've programmed into it, for the time you want it be that temperature. Variables such as extremely hot days and higher humidity will also affect your cooling system.
Give it a little time to self-learn and it should adjust itself after a week or two of operation. You might want to take some time to review and familiarize yourself with the owners manual to see what Hunter advises for setting up and using the thermostat.
You may need to have your A/C checked to see if you're running low on freon, or need to have the coils cleaned, need to change the air filter, etc.
The only thing I can think of other than being just old and worn out is that by design it may not be set to run but so much at a time. Has this always done this since you have had it? It may be needing calibration. One thing you can try is to set it at 2 degrees higher than you want it and then it would shut off at the temp you actually want.
Sounds like the variances are not set right. if I am understand you. You set the thermostat to 74 and the heater shuts off at 70? If that is correct then the variances are wrong or you have placed the T stat in a bad location where it is getting heat from a vent, wall where there is a appliance or in a very drafty location
set point time time when the set point temp activates
say i want my house to be 70 degrees while i sleep
i'll set the set point time to 11 when i go to bed, and the set point temp at 70
so to do what youwould like set the set point time for midnight and the thempature fore 55 or lowest seting with will keep the heater off. for the second time setting set point time at 5 am and set point tempature at desired temp
If indeed the program is stopping it you can find out by putting the thermostat temp on a manual hold. Set tstat to a desired temperature then push hold. If all works well then you will need to reset your program to fill your needs