Question about Amana PTH123B25AJ Heat Pump Air Conditioner

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Heat pump Unsure how to change from cold air to heat. It is a Kelvinator brand.

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Click the switch on the thermostat.

Posted on Feb 21, 2008

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I have a Kelvinator Reverse Cycle air conditioner - Model # KSR25F-01. When I use the heating operation the "Defrost Mode" has come on and is stopping the air conditioner from working. The unit...


The Kelvinator technician came out and found that our gas was very low indicating that there was a leak somewhere - the gas should never deplete apparently (being a closed system). He checked inside and outside and couldn't find a leak so assumed it must have been an issue with the piping in the walls. He recommended not spending the money to get it repaired - he recommended it be replaced (not a cheap option but it was 11 years old and repairing wasn't likely to be cheap or a long term solution). So not sure if that is your problem but hope it helps!

Jun 13, 2011 | Air Conditioners

1 Answer

HI-i have a coleman heat pump- on defrost it gives cold air- not normal. thanks


Do you have electric heat strips for auxillary or backup heat? When the heatpump goes into defrost, the electric heat strips or whatever your source of auxillary heat is, should come on to keep you from feeling the cold air. When the heat pump is in defrost it is essentially operating in the A/C mode, that is why you will feel cold air if the auxillary heat isn't working. You need find out why the auxillary heat isn't coming on if it isn't. It could be do to a bad seqencer or a burnt out element.

Mar 11, 2011 | Air Conditioners

1 Answer

The air conditioning fan outside the house is showing frost on the coils, what is the problem


Are you using your Air conditioner as a Heat Pump (Making heat in the house)- or as an Air Conditioner (making COLD air in the house.)

If as a heat pump, then remember-- that the WARM coil is now inside the house-- and the COLD one is outside-- So, if it is COLD outside, there is not enough HEAT out there, to keep the coil from going below freezing-- The unit may have to be turned off, and allowed to defrost, if you want more heat from the Heat Pump-

Let me know if this helped

Mack B

Jan 15, 2011 | Ruud Air Conditioners

1 Answer

Heat not rising above 62


It sounds like you have a 'heat pump'?-- and you are trying to heat in these cold snaps-- when the outside temperature is down near freezing?
If so-- Heat pumps do not work well that cold!-- so if your system was marginal at heating, when the outside air is 40 or 50 degrees F-- you quickly run out of 'heat' in the cold outside air, to move the refrigerant in the heat pump with any heat wrung out of the COLD-- to bring heat into your house!
Make sense?

Please tell us more-- like how your heat pump worked last year, etc.

Mack B

Jan 08, 2011 | Air Conditioners

1 Answer

REPLACED BOTH ELEMENTS GOT HOT WATER FOR 1 SHOW THEN IT GOT COOLER AND COOLER AND NOW ITS COLD ONLY?


Find a reputable HVAC contractor to do a room by room analysis with heat and cooling loads calculated and units sized and duct requirements and compare to what you have.

The air not being cold is not necessarily an indicator of anything malfunctioning. High efficiency units for instance don't produce cold air.

Since you have had someone look at it, the duct work may be collapsed which restricts air flow or uninsulated which warms up the supply air. Either one is a possibility. Any Cox Cable guys been stompin' around your attic lately? Wouldn't be the first time.

Usually, when the air coming out of the vents is not cold enuf it's because your freon level is low. Probably leaking, but they can usually recharge the freon and it will work for a while. Try another repair company and see if they can recheck the freon level.

We have a high efficiency unit and it produces cold air, so I don't know what previous poster is referring to. Air conditioners are supposed to blow cold air.

Sorry, to tell ya but it is normal if the outdoor temperatures are much below 45 degrees. Below 45 degrees there is little heat outdoors for the heat pump to grab to heat the home so it will run 24/7 and blow cool or cold air. Below 45 the temp of the air coming out the vent will decline and you will get no heat from the heat pump itself as you near freezing.

Your emergency heat or auxiliary heat is electric strip heat. But it only kicks in during normal operation if the temp in the house drops 3 degrees below the setting. (some tstats if can be 5 deg.) Otherwise the heat pump will blow cool or cold air the rest of the time if it is too cold out.

To prevent it from running all the time and blowing cold it is recommended if the temp outside is falling below 45 degrees you should just switch to the emergency heat setting, which shuts the pump outdoors off, and just heat with the electric.

But if there is no heat outside the heat pumps will blow cold. They are the cheapest and most efficient forms of heat but only as long as the outdoor temp is above that 45 deg..

I'm guessing that if you haven't experienced this you live in some place with moderate winter temperatures like in Northern Florida and rarely get very cold winter temps like the freezing you have seen there recently.

It will likely blow much warmer when the outdoor temp rises.


Aug 02, 2010 | Air Conditioners

1 Answer

Is it normal operation for these units to EVER blow out cold air or "nonheated" air when unit is in heat mode?


Yes. Heat pumps have to go into defrost just like a freezer when the temp gets too cold outside. The heat pump will temper the indoor air electric heat.

Apr 12, 2010 | Amana PTH123B25AJ Heat Pump Air...

1 Answer

Heat pump and gas furnace running at the same time.


An explanation....

When in the heating mode, all heat pumps are dependent upon the outdoor conditions to remove heat energy from the environment and turn it into useful heat for your dwelling.

Heat pumps operate more effectively in temperate climates (as in southern states) and if it's as cold as you say, then the furnace is coming on to add auxiliary heat to the space to make up for the lack of heat being supplied by the heat pump. This is normal.

Some heat pump systems are or can be equipped with a control known as a "low ambient cut out" and/or "motor master" that prevents the heat pump compressor from operating and slows or stops the condensing unit fan when it's too cold and risking potential compressor damage. When it's in the single digits outside, a heat pump is only marginally effective. and usually requires auxiliary heat (your furnace).

If the furnace keeps operating when it's in the 30s or 40s, you may want to have the system examined by a competent service technician. As always, the outdoor condensing unit should be kept clean and the furnace filter should be changed no less than monthly, unless you have an electronic air filter.

Jan 07, 2010 | Air Conditioners

1 Answer

Heat pump problems


OPEN UNIT CHECK, SOLENOID COIL THATS CONNECTED ON THE REFRIGERANT LINE, CHECK FOR. PWR, CHECK FOR OPEN COIL, IF OK THEN PWR BOAR OR CONSOLE BOARD IS BAD

Sep 12, 2009 | Amana PTH123B25AJ Heat Pump Air...

1 Answer

Ruud heating/ac unit blowing only cold air in heating mode


Do you have gas or electric heat. If you have gas then you do not have a heat pump. You should in most cases have a red,yellow, white, and green wires coming to the thermostat. R should go to rc/rh G should go to green Y should go to Y and w should go to W. Also the switches on back should be switched to non heat pump and gas rather than electric. Hope this helps.

Feb 15, 2009 | Ruud UBHC Air Conditioner

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