Run(heat) for a certain minutes then it stop.

i'm not familiar with your specific unit but ..sounds like an electronic gas value has gone bad or has a bad connection when that happened to my friend it wasn't that expensive to have it fixed .. BYW it acted like this for a while then stopped working completely

This is likely to be caused by the start/run capacitor on the fan. Call for service, you don't want your valuable wine collection mistreated!

https://www.google.com/search?q=Breezaire+Wine+Cellar+Cooling+Unit+service

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What unit? What voltage? Have you tried a different circuit, maybe overloaded or weak breaker.

The cold that you describe may be just unconditioned air? If you are certain you can hear the comp operating for a couple of minutes, and then the heat starts, I would guess it is a reversing valve issue if it's a heat pump and it probably is. Or the control board acting up. I've had a lot of issues with the boards in the Amanda PTAC units. I can't remember how to configure it, but if you Google "Amanda ptac configuration", there is a lot of info online. May try a reset method first. Hope this helps!

Could be over heating and the unit shuts down till it cools off. Check the dryer vent line for clogging all the way up to the vent by the roof. Bet it is clogged some where and that is the cause of your problem.

check the air filter and cooling fan.

Seems like the fan relay has stuck (Likely to be on the main indoor PC board) or if the machine was being used on heating mode, the indoor pipe sensor may have failed causing the fan to continue to run. Most air cons on heating mode, will keep the fan running for a few minutes after you switch off on heating mode to cool down the indoor unit before it turns off completely. The pipe sensor signals the main PC board to tell it that the unit has cooled down and can now turn off completely. If either of the above faults occur, the indoor fan will keep running all the time.

If the air conditioner compressor runs all the time the main control board might be defective. The main control board provides the voltage to the fan motor and compressor. These boards are often misdiagnosed. Check all other components to be certain this is the cause of the problem.

sounds like the out door fan is not running and the comp is over heating, rec to start unit and check to see if the fan is running in the first 30-45 min, if not check cap or replace fan motor.

your heating element need to be cleaned.......

1. pull the unit out from the wall
2. Remove the screws holding on the larger rear panel.
3. Using a vacume cleaner extension, remove as much debris as possible from all accessible components.
4. Clean out the dryer vent and the connection to the wall, making sure that air can pass easily.

THAT SHOULD DO YA. If the heat continues to cut off, you are dealing with a faulty heating element in which case you will be best off to purchase a new dryer. (replacing a heating element is typically the beginning of a failing unit)

GOOD LUCK AND PLS RATE THIS POST!!!