Question about Goodman PHKJ048-1 Air Conditioner

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Throws out luke warm air,temp.is on 68 and themo.is set on 70..want get up to 70 .but keeps running all the time..

Goodman heat pump.phkj036-1f

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  • Expert
  • 107 Answers

You need to have it checked. The compressor may not be running or it could be low on charge. There are several issues that cause this problem; but these are your two most common.

Posted on Jan 27, 2013

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Posted on Jan 02, 2017

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SOURCE: 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 hillbuck29@aol.com Hope this helps,Dave

Posted on Nov 11, 2008

  • 8404 Answers

SOURCE: I have a goodman ac/heat pump....worked fine last

Heat Pumps are not famous for being fast heaters. Give it some time to act. Is yours extracting heat from the air or from a water source. If from the outside air, consideration must be given to the temp of the outside air. It takes longer to warm as the temp outside drops.

Yours could be a different problem of course, but let it have a chance to work before you call the repairman.

Posted on Dec 12, 2009

muttandjeff
  • 359 Answers

SOURCE: i have a 3 ton goodman heat pump warm air is

if these are the longest runs from the air handler this can sometimes happen ,about the easest solution is to install a in duct heater into the duct feeding the rooms this is basically a set of electric coils installed in duct to re-heat the air going to the bed room

Posted on Jan 08, 2010

  • 141 Answers

SOURCE: Poor cooling. High bills when heating.

see if the lines the big one if it is verry cold or frosted let me know

Posted on Apr 08, 2010

  • 59 Answers

SOURCE: In heat mode thermostat set for 68 and room temp

Could be under sized unit or fan relay on unit.

Posted on Dec 19, 2010

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1 Answer

Goodman gph1348m41ac unit is blowing cool air in heat mode with mid 30s ambient outdoor temp. I turn it off then on and will usually blow warm air but this cycle is becoming more repetitive. any expert...


A heat pump on the optimal heating day (about 50 degrees ambient) will only deliver approximately 85 degree air as compared to 125 degree air from a fossil fueled furnace. The colder the outdoor air is the less heat there is available to be transferred to the living space. At 30 degrees, the heat transfer capability is getting close to negligible meaning the run cycles will be approaching continuous and eventually as the heat pump along cannot maintain setpoint, the outdoor stat or stats will bring on auxilliary heat in the air handler.

If your ambient temp is below the 'balance point' of the heat pump, the house temp will drop a little lower and most times energize the heat strips through the outdoor t-stat. Your outdoor stat could be set too low for the heat pump to carry the structure all the way down to the balance point so when you turn it off and back on, the lower indoor temp automatically brings on the heat pump plus a heat strip or two, thus the warmer air. Second stage on the stat satisfies due to the heat strip, drops them out of the circuit and the heat pump is left running on first stage heat delivering the perceived cold air.

Your outdoor stat could also be not functioning correctly and not allowing the heaters to come on until the system is turned back on reestablishing the two stage call for heat.

Tons of possibilities and not enough room to list....

Jan 01, 2015 | Goodman Manufacturing Goodman GPH1348M41 4...

1 Answer

I turned my thermostat down this morning to 68 degrees. I came back about 2 hours later to increase the temp to 70 degrees but when I push the ^ arrow instead of showing the increase to 70 it just flashes...


Since it's within 2 degrees of your setting it could be one of two things. Most furnaces run longer (pass your setting) to maintain the setting you made. Which really not a problem. However, your thermostat may need calibrating. To test this theory, place a regular wall thermometer next to your furnace's thermostat and see if the two temps match when the furnace cuts on and then when it cuts off.
If the temps are both the same, the furnace thermostat is fine.

If you're turning it down to 68, because no one will be at home during the day, just set it 2 degrees cooler than 68 degrees. You will then wind up with 68 degrees.

Feb 09, 2011 | Heating & Cooling

1 Answer

I just got a new heating unit installed. However it runs constantly. If the target temp is 68 degrees it will hit 68 degrees and just keep running. It does the same at 63 degrees. Is this normal?


Dear friend! Any thermostat, it's calibrating to cut off at the end of 2nd beginning and cut in 2nd ending of temp.
Ex: In heat mode, If you set @ 68 degree, it will cut off 70 degree beginning and cut in at the end of 66 degree.
Hope it's helpful to you?

Jan 10, 2011 | Intertherm Heating & Cooling

1 Answer

Why is my new system with heat pump not blowing


Contact Gemaire Distributors in Jacksonville...contact information below. They can obtain the documentation you are looking for.

Gemaire Distributors www.gemairegroup.com2899 Powers Avenue
Jacksonville, FL 32207-8039
(904) 733-2415

Mar 02, 2010 | Heating & Cooling

1 Answer

I have a goodman ac/heat pump....worked fine last season...now only blows cold air, even in heat setting....help! thanx


Heat Pumps are not famous for being fast heaters. Give it some time to act. Is yours extracting heat from the air or from a water source. If from the outside air, consideration must be given to the temp of the outside air. It takes longer to warm as the temp outside drops.

Yours could be a different problem of course, but let it have a chance to work before you call the repairman.

Dec 12, 2009 | Goodman CLQ36AR49 Air Conditioner

1 Answer

What does aux mean on a honeywell Thermostat? the heat doesn't seem to be working but warm air is comming from the vents and the heat pump fan is spinning just not enough to match the temp. it's set too....


The aux switch is for electric heat banks installed in the air handler. Depending on the outside temp. it may not be efficient to run in heat pump mode but in aux. or emergency would run the electric heat in the air handler.

Dec 11, 2009 | Goodman Heating & Cooling

2 Answers

Ruud UBHC-21J18SFA blowing only "luke warm" air at best


That's crazy, we're having the same problem.  Turns out there was a wattage restrictor in the furnace that was switching off 3 of the 5 heating elements in an attempt to save energy.  Basically, the restrictor was sensing that the incoming air was warm, so only 2 of the 5 coils should be needed to heat the air.  Well that wasn't enough and we just sat with the furnace running all day long struggling to reach the 70 degree setpoint. 
This is something a technician can diagnose in a few minutes, but not the sort of thing a DIY'er should really handle.

Dec 22, 2008 | Ruud UBHC Air Conditioner

1 Answer

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 hillbuck29@aol.com Hope this helps,Dave

Nov 10, 2008 | Goodman PHKJ048-1 Air Conditioner

2 Answers

Cold air out of register for about 3 min. until starting to warm


heat pumps generate heat from compressing freon and take a while to generate enough heat to be useful. never expect robust heat from a pump like an oil burner or a gas furnace, but they do heat great and are cheaper to operate. do this . if you are still using an old mercury bulb stat change it to a digital one. this will hold an exact temperature and time off between cycles will be less and the indoor coil will stay warm between short cycles, with an old mercurry stat you set it at 70 and it may run up to 73 and stay off till 68. thats a long off cycle and when call resumes the coil has gotten cold and has to start all over again. also dont wait till it gets cold to run a heat pump. turning it on and off as it gets cold is not correct. you should select a temp ,usually 71 for heat and set it and leave it on to do its thing.you may want to check the charge. hot gas discharge is usually 100 degreees hotter than outdoor temps after 15 minutes run time. for example if its 40 outside the big freon line outside thats insulated should be about 140 degrees. or you can run it 15 minutes and grab it with your hand . it should be almost uncomfortable to hold any length of time. careful some get quite hot. you also have the option of hooking up the electric strip to automatically come on if you push the stat up 2 degrees hotter than the temp in the room. that way you get heat pump and strips till temp gets within 2 degrees of set point and the strips shut off and pump maintains.good luck

Nov 01, 2008 | Goodman CLQ36AR49 Air Conditioner

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