Amana PTH123B25AJ Heat Pump,12000BTU, 230V ,2.5KW PTAC Air Conditioner Logo

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Problem with Amana PTH123B25AJ Heat Pump,12000BTU, 230V ,2.5KW PTAC Air Conditioner

Amana PTAC

Unit is not producing heat. Fan works fine. can not locate manual reset for heat although a label on the unit says there is one. I have an Amana pth153b35ae ptac unit that the heat will not come on. The compressor will run in the cooling mode but not in heat mode. I verified the switching valve is working and the capacitor seems to be fine as the compressor will run in cooling mode. The thermostats seem to be functional because relays can be heard clearly when changing temperature setting. I am leaning toward the control board as the problem but would appreciate any other thoughts on this problem. Thanks.

Posted by avatar on Nov 02, 2008

    • By avatarbiblejeep Nov 25, 2010

    • i push the reset botton and it won't come on what can i do there are tow buttons 1. reset 2. reset i put both but non is working we have only use it 4 times from last year when we got it

    • By avatarinohio Jan 13, 2009

    • please show a picture of this location,,,,,

      """the reset is the size of a pencil tip and is located below the control board on the sheet metal you will see the pin hole,you have to remove the cover to see it '''''''''''''''''''''


      thank you

    • By avatarinohio Jan 13, 2009

    • please show digram where this is located. thank you..........



      the reset is the size of a pencil tip and is located below the control board on the sheet metal you will see the pin hole,you have to remove the cover to see it



      dont know where this is at.....picture please....

Solutions (4)

Best Solution

I know this is late but I had to add a solution to this problem since I had the exact same problem and was able to solve it. The probelm is not your control board. On these units, the heat pump compressor will not kick in unless the temperature you set on the control panel is within 2-1/4 degrees (or 4 degrees depending on your unit model. Otherwise, the unit locks out the compressor until the electric heat coil bring the indoor temperature up to that level - and then will switch the compressor back on for heat pump operation. So the problem is not the control panel or the compressor, it the electric heat coil. The coil has two manual limit switches on it that may be tripped and should be checked. The coil can be easily accessed by shutting down the power, removing 4 screws around the air outlet, pushing the screen up and sliding the panel out the top. The power wires can remain in place while the limit switches are reset. Hope it works.

    • By avatarJohn Bovee Nov 08, 2011

    • Just to follow up in case anyone else is in need of solution: The problem in my case was a $1 part in the heater assembly called a thermal fuse. This looks like a little transistor and is connected to one end of the heating coil to keep the unit from overheating. The part is made by Thremodisc and is a MicroTemp G8 144-degree C TCO (Thermal Cutoff). The replacement part is a G5 with the model number G5A01144C and can be found at a few places online.

the reset is the size of a pencil tip and is located below the control board on the sheet metal you will see the pin hole,you have to remove the cover to see it

  • By Author imagejim Nov 17, 2008

You can try to manually reset the heat, however you will likely need to replace the control board altogether. You can purchase it from Amana. They are around $130. You will need to program the new board before it will operate, instructions are included. Take your time and make sure all of the wires are installed correctly or you will have problems.

I HAVE COTROL BOARDS TO FIX THAT PROBLEM DREAMGREEN SERVICES 770-233-9987

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