I have an NewAir 12000H Portable Air conditioner with a heat pump. The problem is that the heat pump no longer seams to be working. The desired temperature is 79 degrees. the unit never gets above 75 degree. when it actually gets that high it because my heat from the house has turned on. once the heat goes off then the unit goes down to 72 degrees and stays there until my heat comes back on. whats wrong with the unit? is there anything that i can do?

It sounds like the actual control module, the "brain", of this heater / air conditioner has failed and can't sense when to kick on the heat any longer. Have you tried just unplugging the unit for a good 5 minutes minimum and seeing if it will help "kick-start" or restart the electronics?

I have seen many of these units go bad with this issue, and many of them only last a few months for whatever reason... I think yours may fit into that category. It is not really worth repairing, to get a replacement unit that is equivalent is around $300, and the repair would end up costing you more than that unfortunately. Definitely try the restart method mentioned though and hopefully you can get some more life out of the device.

Thanks, let me know if you have any questions or concerns, just reply to my answer here and I will be right back with you.

Tim