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Compressor will not stay on runs for about 30

Compressor will not stay on runs for about 30 seconds and shuts down

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Why when my wifes sled overheated @ idle, will only stay running 30 seconds,keeps shutting down,will keep starting up and the that process starts again, 30 seconds,shuts down


first of all you need to know the year make and model of the vehicle you're talking about and exactly what is the real problem is it overheating I will not stay running

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Duo Therm A/C (2009 Sabre RV) won't shut off


bad compressor relay on control board. The relay is not opening the circuit, allowing the compressor to stay running when unit is turned off. This overheats the compressor and opens a thermal disk shutting the compressor off. When thermal disk cools down, the compressor restarts under load and trips breaker.

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Miller 375 x-treme fires about 30 seconds then stops it doesn't stay running, no trouble lights...


Have you watched to see if the pressure light comes on right before shutdown? If so you may need to add a tank right next to the torch base to address the pressure drop assuming your air source is able to deliver adequate volume to the cutter continuously and you currently have more than 25 feet of hose between cutter and compressor. It might not hurt to check the internal filter as well.

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1 Answer

9yr old model Maytag window a/c - just blows cold for 30 seconds - then blows warm. Was perfect until this happened. Is it worth fixing? What would be the usual fix for this?


The compressor is shutting off on overload after running for a few seconds. The overload cools down and starts the compressor running again until the overload heats up and shuts the unit off again.

Aug 02, 2011 | Heating & Cooling

1 Answer

OUT SIDE UNIT SHUT DOWN IN HEAT MODE, WHEN YOU FIRST TURN IT ON IT RUNNS FOR ABOUT 30 SECONDS THEN BOTH THE COMPRESSOR AND FAN SHUT OFF FOR APROX 3 MINUTES {LARGE LINE STARTS TO GET WARM} AFTER 3 MINUTES...


Hi, You have a heat-pump, this I do no. The reason it is shutting down from how you have explained it to me, is the compressor is shutting down due to high pressure and it is going off on the internal overload. When the compressor cools down, it starts back up and runs again. As for the large line getting warm, this is normal for a heat-pump as in the summer this line will be cold. The reversing valve changes over the flow of freon and the flow goes in the other direction. Back to you're problem. The service tech is bleeding off freon because he is apparently showing with his gauges it is over charged? This will cause it to draw to many amps and shut off. Has this compressor been changed out recently? Or maybe freon added due to a leak? He is doing it because he is thinking it is over charged. It may be some if it runs for a few hours after it is bled off. Did you notice if he clamped his meter around a compressor wire to check the running load amps? If so, that's what he is doing. I would say this unit had work done on it recently or correct me if I am wrong. The condenser fan motor should not shut off with the compressor, it should run all the time even if compressor shuts off on internal overload, believe me!! The fan is wired separate from compressor. The only time this fan shuts off when heat is on, is when it goes into defrost, and compressor keeps running. For the compressor to run for only 30 seconds and shut off, and then back on in 3 min, on for 5 seconds and off again, sounds to me this unit is short cycling due to being under charged. It is strange it runs after he bleeds freon off for a 1/2 a day. As far as the fan shutting down to, and I would like you to get back to me, if the compressor was changed at some point, the fan wiring was connected to the contactor load side, so it shuts down when compressor shuts down. One fan lead is on the wrong terminal of the contactor. If this is the original compressor, this could have happened at the factory, I have seen this before. The tech should have seen this!! Going on and off this fast, would not cause the compressor to get hot enough to kick off and cool fast enough to come back on that fast! Sounds like low pressure. I don't like to knock other techs work, but this unit is not being checked properly. Without me being there to install my gauges and amprobe, all I can do is tell you he is wrong with his solution, way off. Heat-Pumps are much more tempermental then a split a/c only.What to do is call them back out and request a different service tech, or the service manager. This will be no charge to you! You should be reimbursed for the last call. E.P.A. allows us to only loose minimus amounts of freon installing our gauges also. It is forbidden to bleed it into the air. He could be fined $25,000 the 1st time!! It also sounds as though you have a problem in the defrost board that would cause this. Please call them back out and don't feel bad about it. This is you're right! Tell them about the fan also as if it is going off on high pressure which I think not, the fan would stay on. I know this is long but I want you to understand what is going on. I do this for a living and know whats up! I am a Licensed contractor in this field. Please keep me posted. I will be waiting to hear back.
Sincerely,
Shastalaker7

Dec 21, 2009 | Heating & Cooling

1 Answer

Fan stops turning after about 30 seconds


this sounds like one of your capacitors has failed
using an insulated screwdriver and, power not applied remove the spade connectors from one of the capacitors then short the capacitor to ground to discharge it replace the spade connectors apply power and, turn it on if the problem changes replace the capacitor (a bad capacitor usually is "bulged")
there are usually two capacitors a run and, a start

May 29, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

My compressor will not run.


The start capacitor could be bad. Also the compressor could be worn out. If compressor starts and runs then stops and become hot makes me think the compressor is defective. How old is your refrigerator? Even so compressors go bad. Thanks, Seabreeze

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1 Answer

Compressor shuts down 59516.531G


Is the compressor too hot to touch when it shuts down? This would indicate a low charge

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3 Answers

Walkin cooler


Most Likely Low on Freon. Low Pressure switch shuts That Compressor Off.

Dec 29, 2007 | Refrigerators

1 Answer

Fedders Window AC Unit


I would try to start the unit with only the fan running at first. If it stays running then cycle on the compressor and see how it does. If the unit does not operate when compressor is turne on then we have to dig deeper into that.

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