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What causes my air compressor to over heat? - Dometic Rooftop RV Air Conditioner

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Ingersoll and 15T2 lub oil turning milky, why??

The milky appearance of the oil is due to moisture (water) getting into the oil. I recommend that you drain and change the oil immediately. atmospheric variations (particularly high humidity) will cause this. There are two reasons. First, when the compressor is running, air coming through the air intake will have water particles in it. That moisture in the air slips past the piston rings and accumulates in the crank case. There's no stopping that, but a clean air filter will help. Secondly, while the compressor is running, it tends to heat up. Any moisture that has entered the crank case will vaporize due to the increased heat of operation. When the compressor is shut down, the moisture vapor will condense on the inside walls of the crank case and form droplets which will run down into the crank case oil. When the compressor is started again, the oil agitators at the bottom of the pushrod caps will agitate the oil, thusly mixing the condensed water with the oil causing the milky appearance. Best to check the oil at each start-up, and change it when it gets milky.

Jun 13, 2016 | Ingersoll Rand Air Tools & Compressors

1 Answer

Frozen compressor

A frozen compressor can be caused by several things. One cause could be partial loss of refrigerant or being over charged by someone adding to the factory charge. Another cause for a frozen compressor might be poor heat transfer in the evaporator, which is where the cool air comes from. This is usually systematic of a dirty evaporator or poor air flow coming from the fan. Another cause for a frozen compressor is the system not turning off when it should. This problem is usually a result of a bad thermostat or the thermostat not turning off soon enough.


Apr 19, 2016 | Dometic Rooftop RV Air Conditioner

2 Answers

What causing hot air to come out of air compressor cylinder

The air is always warmer coming out of a compressor. As air is compressed it builds heat, also the mechanics (friction) of the compressor builds heat. So you add these two together and you get some rather warm air out of a compressor, especially if it runs for a while. I hope this helps.

Apr 23, 2012 | Air Tools & Compressors

2 Answers

What would cause hose from pump to tank on a porter cable pancake comressor get extremely hot when running

I too had noticed the heated compression rubber hose.. the older models for smaller united were made to last longer and used 1/4" copper tubing and flang fittings kence, less rubber seals to fail over the long run, although porta cable says the compressor has a three year limited warranty for this product.. Mine has started to leak just over a year and only used a few times maybe twice a month. So even ubder light duty this unit has failed not just the drain plug seal,, but internal seals inside the compressor. I have returned this ubit for a full refund. So to answer your question, "what would cause a rubber hose to get extremely hot" it is normal for all compression tubings and hoses to run hot to the touch when running long periods but it is also a problem when poor engineering and lack of quality components such as rubber seals fail and cause leaks and so causing excessive heat and internal damage to other seals under such extremes..May I suggest you contact porta cable and ask them about your trouble with the product and their three year limited warranty

Nov 18, 2011 | Porter Cable C2002 150 Psi 6 Gal...

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Currently I have a problem with the air conditioner that I have. The problem was quickly compressor heat. What caused it to happen? please given the answer. thanks.

Problems with cooling or with compressor oil. Check also wath is writted in owner manual. ( Work time, Wath temp etc.)

Mar 29, 2011 | Air Tools & Compressors

1 Answer

I have a sullair 185 engine dies and light blinks one and says compressor over heating what causes the compressor to overheat

Hi, my name is John. Welcome to FixYa. Low oil level, and poor air circulation. Thanks for choosing FixYa....John

Nov 22, 2010 | Chicago Pneumatic 1/4" Air Screwdriver

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Goodman central air conditioner not blowing normally

It sounds like the compressor is not coming on in the outside unit. If it worked fine and was cooling before, then your compressor probably over-heated and tripped the internal overload switch which causes it to stay off while everything else is working. The most common cause of your compressor over heating is an incorrect refrigerant charge, though it could be a few other things like a restriction in the copper line set. You will be able to hear the fan motor and the compressor kick on if you listen close while the system first turns on. If the compressor is over-heated, then after it cools to a save temperature, it will come on again, but only till it over-heats again. I would have the charge checked on the system, but remember that if the compressor is over-heated when the technician gets there, there is nothing he can do until it cools down and time is money! It's best to not run it until the problem gets figured out. Hope this helps and points you in the right direction. Good luck!

Jul 17, 2010 | Heating & Cooling

2 Answers

Compressor of the Ruud A/C outside unit is making unusal loud continuous noise. I open the case, its not the fan or fan motor, loud noise is coming from the compressor, and it is also heating up a lot....

OK, you will need to replace this compressor. the internal seals have ruptured, causing the loud noises. the heat is from the metal to metal friction. the compressor can be rebuilt but, it will be more costly than just replacing it with a new compressor.

May 27, 2009 | Ruud Handle Air Conditioner

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