Manual on air conditioners or heat it will only run for 15 minutes then it shuts off.

SOURCE: have an amana central air

Change your heating delay to shut off sooner, you can find this in the installation manual. Also the Thermostat may have delay after heat as well. It is true there could be many variables, but it also sounds like the Heatpump is not charged properly, you will have to have a different tech come out and check that. No need to have the installer mess your system up any further. This solution will only correct the auxilary heat, your heat pump on the other hand will require expert skills.

SOURCE: We have this air conditioner in our sunroom. From

I would replace the thermostat.

First - be sure and un-plug the Air Condtiioner from the wall.

When you 'select' the temperture I am assuming you are doing this with a 'knob' of some sort. This knob will be part of the thermostat - therefore it (t-stat) should be simple to identify.

Note: On some - LED/Electronic units - it may be difficult to identify the thermostat.

If, however, you can easily ID the t-stat - then you will have to dismantle the AC unit enough to get to the thermostat; it will be installed on/in the unit with screws of some type.

When you find the thermostat -- simply take the wires off the connections (these are usually - 'female' type spades that slide over 'male' type connections on the switch.

When you remove the wires be sure you mark them in such a way you can replace them on the "correct" terminals of the new thermostat without getting them mixed up.

It will be essential that the new thermostat - (A) physically fit the slot that the old one did, i.e. you can re-install it as the old one was and - (B) that it will have the connections you need - in order to connect your wires correctly.

If you take the old thermostat to an Air Conditioning Supply house they will probably be able to sell you an exact replacement - but in any event - an appropriate replacement - that will work.

good luck!

SOURCE: My wall air conditioner will

You may be over loading the circuit. Try only running the AC then see if it runns longer turn everything else off on the circuit. most window AC need a 20 amp breaker. If you have had it on the circuit for a long time without any problem you may have been at the limit of the breaker and it is going bad. If you are overloading the line one way to tell if the unit runs long enough 30 min or more the cord on the unit will get warm or the faceplate of the plug in will get warm also look at the cords end where it plugs into the outlet is it melted or blackened ect obviouse signs of overheating. I always recomend a dedicated line for AC. Hope this helps good luck and be careful with the electricity.

SOURCE: My air conditioner amana ac

Either its out of frion, or it needs to be cleaned.