I've amana ptac model # PTH093B35AM. Heater keeps turning off in less then 5 minutes. When I put thrmoster in ice. It kept running. What could be a problem ? Need some help ASAP. Thanks

Question edited for a lot more clarity.

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Probably this one. Talk to your installer.

https://www.amana-ptac.com/products/ptac/hec154j

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That means evaporator coil is too cold, possibly iced, chech filters, fan speed, airflow, capillary tube

You said in another post that the error was c7. That means evaporator freeze. Too cold. That could be lack of air flow, bad sensor, ice on the coils.

check that the reversing valve is working and wired properly

EBay often has the control boards for Amana heat pumps, and installing them is fairly straightforward, provided you have some experience with electronics, a soldering iron, etc. Amanapartsonline.com may also be able to sell you the part, which should run between $50 and $150.

Given, however, that the thermostat is also showing problems, as well as what parts are going for these days, I'd seriously consider upgrading to a new unit and selling the old one on Craigslist to offset the cost a bit. If you can find an HVAC technician, someone who's learning HVAC, someone who just wants it for a guestroom where it need not work perfectly or a landlord who can afford to have a secondhand unit fixed and put it in one of their properties for their tenants to buy your fixable old one for a few hundred dollars and a new one only runs about $700, your upgrade will cost less than having the 7-year-old unit repaired, plus you'll be recycling.

Our Amana afi2538aes is doing the same thing. Had a repairman out. He called tech support at Amana. They had him adjust the "thermistors" but it is colder than ever running at 28-30degrees in the fresh food compartment despite being set at 46 degrees. Tech support also recommended installing some sort of "ice bin seal kit to take care of the problem" according to our invoice from repairman. Repairman was told that the ice bin in the fresh food compartment puts cold air out (to keep the ice frozen) which freezes the food in the fresh food compartment. I called Amana and the rep I spoke to said he couldn't find record of this being a problem with the model but tech support told our repairman "we've had a lot of problems with this happening."

shop.amana.com>owner center the new stuff is a better energy rating but the most savings would be 5 bucks or less a month,, the more you spend the more you will save ( 2500=5 800=1) i would look for other ways to save,, like a hot water heater uses the most,, it can run up to 3 hours to heat one tank of water,, then it kicks on to keep it heated,,, just a example

Compressor working ?
Please follow this tips:

To get proper cool, keep the tips as follows:
1. Check air filter is cleaned. 2. Check indoor coil is cleaned. 3. Checkindoor blower motor is working. 4. Keep in cool mode. 5. Set temp minimum 3degrees less than room temp.6.Check compressor is working with correctpressure.
Please specify, if any error code..........
Thanks. Helpful?

see if you can find a new board the power failure fried it

These units are changed out quite often. You should be able to find you a cover on line. Try any ac parts web site. Russ You will need model number of unit.