Question about Heating & Cooling
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Posted on Jan 02, 2017
another easy way is to look at your stat. if it says heat cool off then odds are its a straight cool. if it says heat,off , cool and emerg heat its a heat pump. ,or turn it on in heat at max heat. does outside unit run? if yes then its a heat pump if no then its straight cool with strips. good luck
Posted on Oct 25, 2008
SOURCE: Heat pump cycling on and off.
It sounds as if you you have a low charge of refrigerant, r22. When the unit comes on outside, the outdoor coils become the lowside, there is a low pressure switch that is tripping out contactor protecting the compressor.
Posted on Mar 11, 2009
I suggest you call a qualified service repair man. There are as many ways to connect a heat pump as there are people doing them. Nothing is standard industry wide that has anything to do directly with color codes, so it would be meaningless to go into them here. The terminals may be adapted to standard but but the thermostat manufacturer may not follow any terminal designations.
However you may just have an extra wire touching one of the terminals inside the thermostat. You can check this by removing the cover. Look where the wires attach to the terminal screws on the thermostat. Sometimes a new service person cuts the insulation back too far here or in the outdoor or indoor units and a "whisker" from one wire can touch the other terminals. A whisker is not the normal case try and move it away from another terminal if its is touching there. However, you may have jumpers in place especially if you have W, W1, W2... at any of the 3 sections, meaning the outdoor, indoor and thermostat.
If you can tell me the terminal designations R,Y, W1, W2, E, G, O, (B)... at the thermostat and the color thereon each, then at the indoor unit terminals or wire designations and the color there, then at the outdoor unit and the color thereon each terminal or wire designation there. I might be able to help if the above whisker check you don't find anything.:
Posted on Mar 25, 2009
I am pretty sure you have a low charge and the pressure switch is kicking it off. probably just a pound or two however the accumulater will sometimes hold more.
Posted on Mar 31, 2009
there is most likly no problem with the machine itself. most likly its oversized. how many sq. ft. is the space. 700 sq. ft. per 12000 btu's is the norm. If its over sized the unit will cool the space quickly and not have the time to remove humidity like its supposed to. check your sq. ft. and on the unit you will see the BTU's of the unit and go from there. I hope this answers your question!!!
Posted on Sep 01, 2009
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