Question about Goodman PHKJ048-1 Air Conditioner

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Phkj048-1 This is when the heat is on, outside temp has been in the 30-50 degree range. Should I still add refrigerant? Ans if so, do have any guidance on doing so or would it be easier to call a pro?

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If the outside temp. is lower than 32 deg. F it is normal for the outdoor unit to build up ice but not safe for the motor compressor. Because the safe outdoor temp. in heating is 5 to 64 deg. F but don't worry it has safety device to stop the operation.

Posted on Mar 19, 2008

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Posted on Jan 02, 2017

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Heater will not activate until outside temp. is above 40 degrees


If you have a heat pump the compressor is locked out below that temp. If you have a dual fuel - hp/gas, the gas burners should come on as would the electric heaters if you have electric heat as backup.

Jan 19, 2016 | Heating & Cooling

1 Answer

What is the on/off temperature (heat) range for a RTH111 series


Heat range: 40 to 90 degrees F
Cool range: 50 to 99 degrees F
1 degree deadband

Here's the operation guide:
https://customer.honeywell.com/resources/techlit/TechLitDocuments/69-0000s/69-2603EF.pdf

Please mark my answer as helpful.

Jan 05, 2015 | Honeywell Digital Manual Heat/Cool...

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Hi,My remote do not get the good temp in my house. Ex: I set to 80F in heat mode but the thermopump operate slowly and dosn't get hire than 70-72F. The remote see the unit and all. Is the sensor in th


You have a heat pump.
Once the outdoor temperature falls below 36 degrees, heat pumps will sharply lose their ability to heat.
If you are getting a 72 degree indoor temperature when the outdoor temperature is 28-30 degrees, the heat pump is performing up to spec.
On heat pumps, the air coming out of the nearest air vent to the unit should be heated approximately 40 degrees warmer than the air entering the unit.
If you have a 70 degree indoor air temperature, the heat pump should be supplying 110 degree air at the closest air vent to the indoor unit.
Gas heat is a much better heating source where outside temperatures are commonly below 36 degrees.
Even electric furnaces perform better than heat pumps under these conditions.

Nov 30, 2014 | Heating & Cooling

2 Answers

How do you put in 410a into Ac unit


You turn system on to cool setting and run temp down until outside unit comes on. Then you connect your suction side of your gauges to the suction side of your outdoor unit. Next you connect the liquid(high)side of your gauges to the liquid line on your outside unit(the little copper line). Connect the middle hose of your gauges to the 410a drum of refrigerant. Before opening the suction or low pressure side of the gauges you need to turn the drum upside down and turn drum of 410a on. Then you need a temp reading meter and clamp to read the temp of your liquid line(small line). While charging you want to make sure to release refrigerant slowly. The unit should call for a specified subcooling on unit plate. 7 to 10 degrees. You take the liquid line temp and subtract it from saturation temp on the high side of your gauges.(it'll be the pink numbers on the right side of your gauge.

Jun 05, 2013 | Heating & Cooling

2 Answers

I have the correct Manifold Gauges for checking the low and high side of the heat pump. How do I read the gauges to ensure that my system has the right charge? Outside ambient temperature is 85.4.


In order to know if you have the correct charge you must measure the subcooling since it is a txv unit. The outside unit will have the proper subooling you need printed on the data plate. Hook up you gauges and let thebunit run for 10 minutes, after 10 minutes check the high side pressure, that high side pressure will correspond to a saturation temp, write that number down then measure the temp of the liquid line and subtract the saturation temp from the liquid line temp, it should be the same as printed on tjhe data plate if it is higher than that add refrigerant untill you get whtas printed on tne data plate. Is there is no data plate use 12 degrees of subcooling.

May 27, 2011 | Heating & Cooling

3 Answers

We have had this unit for 3 years. We have had it serviced with freon and cleaned each year. The problem is that the air blows out of the vents but it is not cold. Well, for example, it was only 78 outside...


Hello, it is possible that the unit may be undersized for you home and not being able to keep up with the indoor heat load. The only way to determine thia have a hvac contractor do a cooling load calculation on your home. I have seen many units undersized that cause this problem.

Apr 09, 2011 | Goodman CPLE24-1 Air Conditioner

1 Answer

I had the same issue...the temp is 30 degrees out side and like 50 inside...every time i turn on the heat the aux heat turns on...i tried to turn on the EM Heat but then the aux heat still turns on...i had...


You obviously have a heat pump. A heat pump is basically an air condition running in reverse. By way of example, during the summer time you will notice cold air coming from you vents and hot air being blown out of the outside section of you unit. And in the winter time it switches the flow of refrigerant (freon) and sends the hot air inside and the cold air out. So when the temp drops below about 45 and/or there is a high demand for heat inside the aux light will come on. When this happens it bring in the resistance heat (back up heat stripes) to accommodate for the added need for heating. Heat stripes do in fact burn a lot of electricity. My suggestion to you is not to make more than 5 degree increments of temp rise at a time on your t-stat. For instance if it is 50 inside, set the t-stat to 54, as the temp in the house rises you may continue to raise you setpoint...just never more than 5 degrees of room temp. Otherwise there is not much you can do for it on your own.

Dec 14, 2010 | GE Zoneline AZ55H09D Air Conditioner

1 Answer

I have my thermostat set to 75 degrees however my house will only get up to 70 degrees. At night when the temp drops outside so does the temp in my house. For example I had my thermostat set for 75 degrees...


How old is your system?

If your system is a heat pump and is failing to keep up overnight during the colder weather. Or if it struggles to keep up at all, a few issues come to mind.


Obviously, the first and most common cause would be due to an undercharge of refrigerant. With an undercharge, your heat pump has lost efficiency and cannot properly remove heat from outside.


Other possible issues that come to mind are failed defrost cycle. If your unit is not defrosting properly and it continues to run non-stop, a freeze-up could occur on the outdoor coil. And the worse it gets, the worse your system will perform.

Another possibility is auxiliary heat or heat strips are not coming on at all. Depending on your thermostat, you would be able to tell if the thermostat is calling for auxiliary heat. If you are not getting any additional heat, then the heat pump may not be adequate for the space intended.


Other smaller factors may come into play such as incorrect defrost cycles. Possibly a mechanical component taking a break or overheating or maybe a mechanical failure such as failed compressor leaving the only heat you have as emergency.



Jan 09, 2010 | Amana Heating & Cooling

4 Answers

Goodman Air Conditioner not heating well...


Heat pumps in cold climates suffer a number of limitations stemming from the fact that they are designed for air-conditioning applications. As climates become cooler and heating becomes more of the primary HVAC function, one may find that conventional heat pumps lose capacity and do not satisfy the load of the conditioned space. In colder temperatures, a conventional system’s need to defrost can further detract from heating performance. The use of resistance heat or fossil fuels to supplement or replace the vapor cycle. The additional use of supplemental heat to temper cold air blowing into the space during defrosts. As it gets colder outside, the delivery air temperatures inside begin to fall when no supplemental heat is being used. Supply air temperatures that are warmer than the return temperatures add heat to a space, but discomfort occurs when these supply temperatures drop below skin temperature. The air movement can feel cool or even cold. While the heat pump may be operating exactly as intended,the consumer will desire a more comfortable environment.

Jan 18, 2009 | Goodman CKL49AR49 Air Conditioner

1 Answer

A/c shuts down after about 30 seconds


Sounds to me either a low refrigerant charge or low air volume over the evap coil (inside). There is a sencer for temps outside maybe it's tripping out on that.

Nov 10, 2008 | Mitsubishi MS17TN Air Conditioner

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