Question about Refrigerators
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Posted on Jan 02, 2017
SOURCE: 5 ton goodman ac unit
You MUST WEIGH IN THE NEW CHARGE OF R-22. There should be a label on the side of the a/c unit that states what the factory charge was. This is only a starting point. Once you have the factory charge in the system, then turn on the unit and allow it to stabilize (5 min) . Check pressure on low side and check teperature on low side pipe. Temperature of pipe should be 8 to 15 degrees above what the boiling point of the refrigerant is for the current pressure you are reading. If the temperature is more than 15 degrees, add R-22 in 4oz increments allowing 5min in between each time you add until you are in the "zone". When you do this, your head pressure needs to be 225-250. if you need to cover the coil or block the outdoor fan to do this then do it. Hook up the vacuum pump and start over
Posted on Jun 18, 2008
SOURCE: 1999 dodge caravan a/c
did you turn the compressor clutch plate manually for 20 turns?, to displace the oil that is in the compressor's valve as it is new and have some oil in the valves which is very hard to turn at high speed.
you can try to manually turn the compressor plate in the reverse direction, you could un lock it and hopefully not a amjor problem occurs..
Posted on Jul 29, 2008
The compressor is seized it needs to be replaced log on to frigidaire.com and find a local service provider if you purchased prior to the end of 06 and if less than 5 years old it has warranty coverage on sealed system repairs. check your manual to be sure. you can try what it is called a hard start might work for a while it uses a larger capacitor to give a bigger kick upon start up.
aftermarket "supco" pn RCO410
Posted on Apr 06, 2009
The compressor should be OK this time because you caught it in time. But if the condenser fan stops you need to consider replacing the fan. I have had refrigerators do fine until the fan motor warms up and you are away, it stops. Don't think you should use the refrigerator until the fan is fixed. Sea Breeze
Posted on Apr 22, 2009
SOURCE: COMPRESSOR NOT RUNNING, HOT
The high side/low side pressure equalization you describe is normal for a compressor sitting idle.
If you have an ohm meter you can check the compressor windings for opens and shorts. If your compressor is 3 phase as you state (this would be very unusual for a residential unit) you should have continuity across all 3 phases and no continuity to ground. Take the compressor out of the circuit before you check.
If the compressor does have crankcase heat, it should have been left on for at least 24 hours before starting the unit. Another cause for failure could be overcharging which could have resulted in refrigerant slugging back to the compressor.
Does the unit have any low or high pressure control safeties? If so, check them too - some have resets. You said the condenser fan ran so it's not likely the breaker blew, but check anyway and also check to make sure you have available power on all 3 phases.
Posted on May 03, 2009
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