It is a very intermittent problem if u set the thermostat down below temp then up to desired about 25% of time it will work a friend said try the thremo couple. And how could i check the chimney to see if it is blocked? Thank you for your time.
If it is an older weather king unit (10yrs+) strongly think about replacing it. Known for there problems any expensive to fix. To check the chimney, shut unit off and remove flue pipe from chimey connection. It is always better to have a professional chimney swqeep do it. I really don't think the thermocouple has anything to do with it, it probable does'nt even have one. If the thermocouple is bad, the unit will not work at all.
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so your reported figures show that the unit is operating as planned
the closer to ambient temp the shorter it runs for
the further away from ambient temp the longer it runs for
when the desired temp is reached , the compressor will stop but the fan will continue to run to circulate air past the thermostat so that it will switch back on when the room temp reaches too high temp
and that is why it is recommended to set the temp at 25 C as that is the most economical temp to run it at
the heater will attempt to heat the room until temp is reached if door is opened or cool air enters the heater will continue to run if the heater is set to 20 when the room reaches 20 the heater will shut down until temp drops below 20 then restart
temp setting 1. press the temp/timer button untill the temp icon blinks 2 use up and down arrows to set temp.3 the temperture icon will stop blinking and the current room temperture will appear after desired temp. is set. 4 the heat will turn off shortly after the desiredtemp. is reached and the temp. ndisplay will blink. 5 the heater will turn back on when room temperture drops below the set temp.
timer : auto -off press the temp/time button untill timer icon blinks. the hour display will apear. the auto off icon will also appear.
2. use up and down arrow buttons to set the heater operation time between 1 and 10 hours. this function will activate once the timer icon stops blinking. 3. the heater will automaticly turn off when time runs out.
set temperture first so heater will cycle on and off till shut down time reached
Your EMR energy management recovery setting is likely on, this learns when the run times are most efficient for the furnace to reach the desired setpoint at the desired time in the most efficient manner, so a 6AM on time may actually come on at 430 to get to the desired temp setting at the desired time set. look for a EMR or equivalent function.
Hey kellyrepp -- Three things to check quickly, so many things can be wrong, but i will try to help with the info you gave me.
The first sounds like your electric aux heat is not wired in or not working correctly , this should kick in when the heat pump cannot keep up with desired set temperature. For sure thats a problem
The second thing i would check is that the compressor for that unit is running. It should sound exactly like the one for the upstairs, the fan noise should be like a whrrrr , and the compressor should be a semi loud hummm.
Third feel the pipes on the outside unit that are on the outside of the unit (the unit for the second floor) Let the unit run for 5 minuites. Now check that the first floor unit pipes are the same tempereture. They are about 110 degrees or so, depending on the outside temperatur , be carefull not to burn yourself. If the lower unit is colder , the two most prominent problems would be #1 the compressor is not running #2 Low on freon.
if your furnace is on 24 hours straight, before it heats up your home, then either your cold weather and indoor temps are extreme, or your unit is grossly undersized. if however your furnace cycles on and off when the temp is still way colder than you have set it you have either a bad stat that thinks its hotter than it is, or a bad furnace problem and even though the furnace is getting a signal from the stat to heat it is failing to do so. you'll have to watch and think this through to isolate the problem. if you set the furnace to max heat and it runs and heats the house reasonably quick then its probably going to be a bad stat. if you set it to max heat and it shuts off way before it gets to setpoint then the problem is in the furnace. be sure filters are clean, blower wheel is clean , returns are no obstructed, etc. if you by chance have an old mercury bulb stat they had a thing in them called a heat anticipator which basically worked like this. a dial with a little pointer determined how soon it would be till the furnaced reached the desired temp and anticipated how soon to shut off the burners in anticipation of the cool down period so you dont overshoot the desired temp. if these are bad or moved to different setting they can short cycle the furnace on of on off etc. or shut down the burner almost as soon as it lights. setting is usually at .4 to .6 on most, but really a digital stat is only way to go. by the way check to be sure you don't have a hot air supply grill blowing directly on the stat or it will shut off as soon as stat gets hot and rest of house will be cold. usual location is 5 feet off floor directly over the main return air grill or under it as the case may be. good luck