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Posted on Nov 25, 2010

I have a Goodman PHKJ048-1 C ac unit/heat pump combo. When I turn the heat on the thermostat, the air flows out like normal but only cool air comes out. what is the most likely problem?

5 Related Answers

fixr1st

  • 49 Answers
  • Posted on Nov 28, 2007

SOURCE: goodman ac / heat pump

Goodman energizes it reversing valve in the cooling mode. Usually in the "o" circuit of the thermostat wiring.You may have that wired hot somehow.

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Anonymous

  • 182 Answers
  • Posted on Jul 04, 2008

SOURCE: Goodman Furnace/AC unit not working

3 amp is standard.the fuse is blowing to protect the transformer.It is telling you that there is a short in the low voltage wiring.Goodman also had an issue with the coil shorting on the contactor.To prevent damage.....i'd call a pro.It should be a fairly simple repair.

Anonymous

  • 124 Answers
  • Posted on Nov 10, 2008

SOURCE: MY HEAT PUMP SYSTEM WILL NOT WORK IN EMERGENCY MODE

the thermostat sub base has a place to connect a wire usually white to energize the heat strips when you push the stat way hotter than the house temp. that is why the strips come on in normal heat. it also has a terminal that is only energized in emergency heat and it also should have a wire connected to it so that terminal can supply power to the strips when the stat is switched into emerg heat . you can identify the terminal from the wiring diagram and if need be jumper w2 wire over to the aux terminal and it will work. they both go back into the airhandler and power the same strips. w2..................................................................................................w2 in airhandler to strips or w2...jumper to aux......................................................................................................................w2 in airhandler to strips.

darjr

Darial Jr Lasaria

  • 379 Answers
  • Posted on Jun 08, 2009

SOURCE: Goodman model cpe30-1ab heat pump fan not turning.

usually if the fan failed the heater will overheat maybe the smoke you saw was coming from the heater. Let the repairman to repair the fan.

Anonymous

  • 534 Answers
  • Posted on Sep 16, 2009

SOURCE: Thermostat will not turn on AC unit or the fan in

Here is what I would try to see if the thermostat is bad. Take the facing off the thermostat. Once this is done you will see where the wiring is connected should be a red green yellow and white Turn off power to unit make a diagram as to where the wiring was connected red to r green to g and so on Remove these wires red green and yellow and twist them together Go to the power source and re energize the unit once this is done all components should come on if not the thermostat isn't your problem Red is your low voltage power supply (24 volts) Green is your fan motor in furnance, yellow is your outside cooling unit. 1 other thing you might check. In the furnance if the doors are not properly installed on the face of the furnance it may not allow the unit to come on. There is a safety switch on the furnance where the filter is that if the door is not put on properly the whole system loses power and will not work. Hope this helps. Good Luck

Dave

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Goodman PHJK048 Heat Pump Package

ok...where to start.lol ....the thermostat is just a switch.It will tell the unit to run or not run.if you measure the temp with the heatpump running,the air is warmer than 68 but it feels cool to you because your body is 98.6.The unit will run more often and for longer periods when the temperature drops outside for a few reasons.First,your house has more of a load to heat,meaning you have more heat loss because of the difference in temperatures outside and inside.Second,your heat pump pulls heat from the outside air.The colder the air outside,the less btu's for it to pull.If you have anymore questions [email protected] Hope this helps,Dave
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Goodman ac / heat pump

I just had a new unit installed and I am surfing for troubleshooting tips too. My unit is doing the same... cools well heat sucks. my problem has been isolated down to the reversing valve... It is constantly energised which means it is constantly in a/c mode even when kicking on the heat strips... We disconnected a line at the thermostat and it is working well as a heater now. You may want to check yours to see if it is actually kicking over into to heat mode... -rob
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