Question about Carrier Heating & Cooling
Well I dont know what refrigerant your working wqith but I know the oil press sw's Ive dealt with open after a senmce of NO pressure Difference between Crank case and Oil pump Output pressure. You'll have to pump down the compressor and install an access tee for telling you what your oil pressure is and then subtract the suction pressure for true oil pressure. Usually the oil press sw is set at factory and is tween 7 and 20 psig. If it dosnt see this pressure a heater on the OP sw will energize and if the difference isnt senced withing the heater time limit it causes the points to open shutting off the compressor. If oil press is indeed low You could have bad oil, bad screen inlet to the pump or worn out pump or low oil. BEWARE LOW REFRIGERANT CAUSES OIL TO SETTLE OUT DURING A RUN CYCLE. So if you add some oil then Refrigerant Be ready to take the oil back out important to measure how much in so you dont take out too much. Low back pressure from anything from low charge to a TXV or other valve not feeding correctly. This pressure being low can allow oil to settle anywhere eccept tyhe crank case. The Refrigerant returning toi the compressor caries it back usually unless its piped in incorectly where the oil can trap OUT of the system and not be brought back. .
Posted on Mar 02, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Aug 28, 2011 | 2004 Jeep Liberty
Feb 18, 2011 | 2005 Volkswagen Golf
Mar 29, 2010 | Keurig B60 Coffee Maker
Jan 28, 2010 | Carrier 38CKC036 Air Conditioner
Sep 19, 2009 | Heating & Cooling
Jun 16, 2009 | 1993 Toyota Camry V6
May 15, 2009 | Pentair 1.0 Hp Whisperflo Pump
Feb 01, 2009 | Waring Wine Chiller - Black
124 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: