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Heat pump takes many trys to start compressor

Heat pump takes from 1 to 10 trys to bring the compressor on. When it does come on it is really noisey and runs forever before the stat is satisfied. Stat is in a ok place where it senses the whole house and out of the sun. I think the problem is the dual capacitor for the fan and compressor, the fan has no problem coming on. Could you give me some other things to check?

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Do the thermostat have a time delay on it? most digital ones do you may have to get one if thats the case. Also are there start components on the unit? I've had top add them due to the newer units hasve nonbleed txv's and have a hard time starting up because of them. ans if oyu can see if there's a crank case heater on the unit becaause refrigerant migrates to the coldest spot and the compressor can have all the refrigerant inside of the can mixed with the oil. goof luck

Posted on Jan 12, 2009

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What does the "auxillary heat"

Auxiliary Heat is used to turn the electric heat strips ON, If the heat pump is not working. Or if the heat pump can't bring the space temperature up to Set Temperature it will display Aux Heat ON....... Assuming you have a Heat Pump System with Auxiliary Electric Heat as Back up...... If the tech didn't install a jumper wire from AUX to W on the subase which is in back of the Display on the won't get Auxiliary Heat if the Thermostat is set for Auxiliary Heat. Other wise the thermostat will turn the heat pump on first and then the electric heat (Aux Heat) if it needs it to satisfy the set temperature....... Hope this helps

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My robertshaw thermostat works well in summer when using my Air conditioner. I have a heat pump. but in the winter the thermostat frequently displays "ER" during cold winter nights when the unit...

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Jan 08, 2011 | Honeywell Electronic Programmable...

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I have a switch on the wall that controls the flame with a switch inside the fireplace. we would just leave the switch inside the fireplace off and use the wall switch. Now it dosent work with the wall...

you need to get wall switch and wire to this changed as it is impossible to test these for faults as can happen after a few hours of operating (usually to do with the heat of the fire place dso if it has a fan hopefully you are using it it'll keep components cooler in heater and stop things like this happening), but i'm assuming that cable to wall switch runs down side of heater or something and i'm guessing its got hot maybe melted to side of heater and may have damaged wall switch so i would replace both, this has really been the only problem i have had all year with heaters and its due to turning the fan off which you can do in some heaters that arn't entirly designed for heating, if you are heating with a gas heater its important to run fan no matter how noisey it may be and there not that noisey really just turn tv up i'd rather be warm through winter than hear my tv so i'd rather hear a fan than the news, most of the time it sounds more intresting anyway and i have heard of mechanics that have pulled out melted fans from heaters because they were off, i have found cables starting to melt too so its a safety issue too and lastley if your not running fan heat goes up flu waste of money so i think its important and would have maore than half of call outs less as it has been a problem with heaters with turning fan off, i may be wrong but i'm guessing this may be the problem and if you do use fan the cable to wall switch may be down side of heater making contact with a hot surface and melting causing problem i would also do switch aswell as heat could have damaged to as cable would have conducted heat to switch

Nov 24, 2010 | Mr. Heater Thermocouple

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Auxilliary heat works, normal heat does not appear to be working.

Are you talking about a heat pump? Is the compressor and fan running in the outside unit? What is the outside temp? If the compressor is not running it could be a bad capacitor or bad compressor. If the lines are icing up it could be a low charge.

Mar 03, 2010 | Heating & Cooling

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Heat pump runs in em heat when outside temperature is low

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Jan 06, 2010 | Heating & Cooling

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My unit has been running all day. set on 75 degrees and still only 65 in the house

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Heat Pump compressor replacement

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Honeywell Thermostat

Make sure G from indoor unit goes to G on thermostat for fan continous fan, if that doesn't work and you have 24 volts to R and C then the t'stat is bad.
For 2nd stage heat or aux.heat, on the indoor unit you need to make sure the wire W2 from the indoor unit goes to W2 on t'stat.
You don't need any wires from W1on the indoor unit to W1 at the t'stat because with a York heat pump Y1 is the contactor which turns the compressor on and you will get 1st stage heat, and for cooling the t'stat will also bring on O which is the (reversing valve) or cooling changeover relay for the cooling mode.
C = common usually black wire
R = hot usually red wire
Y or Y1 = contactor
W1 = 1st stage heat not needed for heat pump
W2 = Aux. heat indoor heat
G = fan
O = Cooling changeover relay
B = Heating changeover relay
L = System monitor
E = Emergency heat relay

Dec 23, 2008 | Honeywell Electronic Programmable...

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