compressor runs for about 5 minutes then thermal shutdown

by Robert R.
(Vandalia Il)

I have a construction trailer type air conditioner that I transported to another location. It is the type that hangs outside on the wall with a large intake port and blower port.


I layed it down to transport it and it was on its back for about 10 hours. Upon connecting it up and turning it on the compressor runs for about 5 minutes and then has a thermal shutdown. The small refrigerant tube coming out of the compressor gets extremely hot.

I tried letting the air conditioning unit sit for 2 days before staring it and again after 4 or 5 minutes the compressor shuts off until it cools down. I was told that I should never lay a air conditioned on its side or back?

thanks for any advice or help.

Robert

Comments for compressor runs for about 5 minutes then thermal shutdown

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THANKS DADAN!!!!!!!!! You gave me the fix
by: Robert R

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Refrigerant
by: Dadan

So, Robert

This happen after you put the air conditioner on it back? Or this had happen before. I don?t know if the air conditioner being on it backs is relate to the problem.

By the way, does your condenser fan run?


After noticing/observing the condenser fan not coming on (as you asked) with the compressor... I discovered the water outlet tube that hangs down in the cavity where the condenser fan is located had lodged in between the blades and was not allowing the fan to come on.

laying the unit down apparantly was the cause of the fan being restricted from operating...

works great now..

AGAIN THANK YOU SO MUCH DADAN!!!!!!

tHANKS FOR TAKING THE TIME TO HELP ME OUT!!


cheers

rOBERT r.

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possibilities
by: Anonymous

transporting the unit to include laying unit down could result in....

1. oil migrating up the tubes which could cause an issue

2. liquid refrigerant migration which could cause a issue.

3. vibration of none soldered connections could result in refrigerant loss.

4. transportation could result in a puncture of the the refrigerant system.

it is possible you compressor has a bottom heater/element that could help in vaporizing any liquid that might have migrated.Check to see if installed it is powered up and working.

could you provide the model of your unit?


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Re-compressor thermal shutdown
by: Anonymous

The air conditioner worked fine before the move.
It stands about 6 ft tall and 3 ft deep. The compressor would have been on its side having layed the unit flat when transporting to the new location(10 hours).

The condensor fan does not come on but the compressor does however and runs for several minutes before thermal shutdown.

I will take som,e pics thius evening and post them/link.

thanks for the reply and help.
Robert

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Refrigerant
by: Dadan

So, Robert

This happen after you put the air conditioner on it back? Or this had happen before. I don?t know if the air conditioner being on it backs is relate to the problem.

I?m trying to get a visual image of your air condition unit being on it back and I?m not seen it!

Basis on the information you provided. I will say the air conditioner lack refrigerant. Here why:

1. Extremely hot liquid line (small line)
2. Compressor operates for 5 minutes and it shutdown. Due to internal safety switch.

Wait..could something cause the refrigerant to leak, while being on it back? Did you smell anything near it?

If you provide me model and serial number, image, types of refrigerant, temps/pressure number I could tell you more.

By the way, does your condenser fan run?

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