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I have a goodman heatpump a when i turn the thermostat on heat the electric elements works but not the compressor i check with a volt meter and i have 240 volts at the contacter 24 volts at the defrost board on the condensor .the red wire is hot .question'the white wire from the t-stat being energize from the board or the t- stat

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Posted on Oct 30, 2008

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Why won't the compressor run


This can be for a variety of reasons. It ranges from something as simple as no supply power (blown fuse, open breaker, faulty contactor, or run capacitor) or it could be more serious as a grounded or open winding in the compressor motor. My suggestion to any novice and or person without proper tools and knowledge; First check the low voltage (24 volt control voltage) by turning on the "Fan on" switch located on the thermostat to on, not "Auto" The blower fan should come on, indicating there's 120 volt and 24 volt available. Fan doesn't come on is an indication that there's no control power. The next step would be to check for power at the transformer and fuse located in the air handler. There should be 240 volts feeding the transformer, and 24 volts coming out. The control voltage is needed to operate the thermostat (which is the switch that sends the 24 volt signal to the compressor contactor to turn the compressor on/off. This 24 volt also powers other relays and switches in the system. knowing that 24 volt is available also tells you that the problem is most likely in the condensing unit (outside, where the compressor is located). At the condensing unit you should check for 240 volt supply power. Upon finding 240 volt supply power the question now becomes whether or not the thermostat is calling for anything (cool or heat if the unit is a heat pump). There should be 24-30 volt available at the small gauge wires feeding the contactor coil. While having the thermostat set at a temperature lower than the current room temperature (in the cooling mode) the thermostat should send a 24 volt signal to close the compressor contactor and turn it on. The non-metallic end of a screwdriver can be used to depress the moveable part of the contactor. After pushing in the contactor, should the compressor start then you may only need a new contactor. It may just hum because of a faulty run capacitor or grounded or shorted internal motor windings (grounded or shorted windings are usually indicated by tripped circuit breaker and/or blown fuse). It's a good idea to have a good multi-meter and knowledge of use before attempting any repairs or diagnosis on your own. I recommend some basic knowledge of electricity before even thinking about attempting any repairs or diagnosis.

May 08, 2014 | Goodman Manufacturing Goodman GSC130421...

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Heating elements not energizing on Goodman AFUE 60 air handler


FIRST i would use a multi meter and check elements for power. one or more may not be working. SECOND iwould check sequenser . also look for burnt wires at element and throughout. probably sequensor they are usually under 20 dollars. the wires on very bottom of sequensor should have 24 volts when heat is on.

Jan 21, 2014 | Goodman Air Conditioners

1 Answer

Goodman package unit heat strips will not turn on


Put meter probes at in put terminal of the element if you read 220volts that mean your relay is good. if you got it there use amp meter on one leg of that element. You should read some amp draw there but if there is no amp draw it mean the element broke.

Nov 29, 2013 | Goodman Manufacturing Goodman GPH1530M41...

1 Answer

I JUST BOUGHT THIS UNIT IT HAS THE OUTSIDE UNIT AND THE INSIDE UNIT AND I WAS TOLD THAT THE HEAT PACKS IN THE INSIDE HANDLER IS FOR EMERGENCY HEAT ONLY...IS THIS TRUE?


Yes, if you are talking about a heat pump. It you have an electric furnace inside, the electric elements are for emergency heat. Otherwise, unless you switch it manually at the thermostat, the heatpump (outdoor unit) will run all year around. If you want to use your inside heater (electric heater) just switch your thermostat to "emergency heat" and it will turn on the electrical elements instead of the outdoor unit. This way will make your elec. bill higher tho. The heat pump is much more efficient. Hope this helps you , have good day

Jul 21, 2011 | Goodman Air Conditioners

1 Answer

We gave a Goodmn Hertz 60 Phase I heat pump - installed this summer....worked great for cooling..now that temps are dropping we are needing heat. When we turn it on it comes on but never heats. Think it...


If you changed the unit but didn't change the thermostat it is possible that the thermostat that you have will not work with that unit. I see that the unit you installed is a heat pump, you may have a straight cool T-Stat. If you put the T-Stat in the "Auto" "Heat" mode the outdoor fan and the compressor should be workng as well as the blower fan. If it turns out that the outdoor fan and compressor are not running you will want to buy a Thernostat that is compatable with heatpumps should be 2 heat/ 1 cool

Nov 05, 2010 | Goodman PHKJ048-1 Air Conditioner

1 Answer

Goodman Air handler blowing fuse if switch outside unit not runni


Sounds like your compressor in your heat pump is siezed . You can try a "Hard Start" Capacitor...which basically gives your compressor a kickstart and works 95% of the time when compressors get older....It's hooked up in parallel with the existing Capacitor...if you're not familiar with Electrical etc I would call an expert and mention what I said . If this doesn't work you will likely need a new Compressor/Unit . You could also have a short to ground in the heat pump side....likely the compressor is the problem however the original Capacitor could also be the problem

Oct 27, 2009 | Air Conditioners

1 Answer

Compressor will not start, GSC14-14 SEER


Control wires come from the thermostat to power the contactor coil. At the thermostat the red wire must power (switch) the yellow wire to make the contactor pull in to run the outside unit, Check power with a ac volt meter between the red wire and the yellow wire, with the heat/cool switch turned to off. If you do not have 24 volts ac, your wire may have an open from the thermostat to the outside unit, your transformer may be bad and not supplying power, or your contactor coil may be open

Jun 23, 2009 | Goodman CKL30AR30 Air Conditioner

2 Answers

Heatpump A/C not working


First,Turn on the heat cycle (Not Emergency)and see if the outside unit come on,If not,and you don't have low voltage outside,Go to the inside unit and test the transformer,If you have low voltage from the transformer but not outside,It is the low voltage wires,If you don't have low voltage from the transformer,It's the transformer.If you have low voltage outside when in heat mode,but the unit won't come on,It's the contactor.Let me know if you need more help.


Please take time to rate this fixya

May 13, 2009 | Goodman CLQ36AR49 Air Conditioner

1 Answer

Goodman heatpump. Crazy pressure in heat mode


Check the TXV valve on the outdoor unit, it could be stuck closed. We have been experiencing the same problems with the 410 systems and the TXV was the culprit. Good Luck

Dec 19, 2008 | Goodman CLQ36AR49 Air Conditioner

1 Answer

We recently bought a new house (to us). It has a Goodman heat pump and Goodman Electric backup furnace(A36-15) with a Janitrol stat. I switched the stat to emrg. Heat when the temp got below...


If you have a volt meter, check to see if you have 24 volts coming from the thermostat on the yellow wire.

If you do, and it is set on emer heat, you have a bad T-stat.


It looks like it is wired properly.

If you have no meter, you could try changing the stat, I reccomend Honeywell or white rodgers.

Let me know if you eliminate the Tstat as the problem and we can go from there.
Chances are its the stat.

Dec 06, 2008 | Air Conditioners

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