Donaldinky
Member
The start wire and comon shorted together. On the comp. the comp still ohms out no ground. But blows the breaker when u turn it on. And ideal how to prove the comp bad. New cap. And the wire ohm out good. Thanks
- Thread starter Donaldinky
- Start date
Donald, the AC compressor coil has a pretty low resistance, and what the meter shows may or may not be correct, depending upon what range it is set on.
You could simply have a weak breaker, or, on the other hand, a bad clutch coil.
What I would do, the "down and dirty" test would be to take a jumper wire with one end connected to the (+) battery cable area at the starter solenoid, and (carefully) touch the other end to the (+) lead on the clutch. If it kicks in, suspect a weak breaker. If you get a BIG spark and the test lead instantly begins to heat up, the clutch coil is bad.
You could simply have a weak breaker, or, on the other hand, a bad clutch coil.
What I would do, the "down and dirty" test would be to take a jumper wire with one end connected to the (+) battery cable area at the starter solenoid, and (carefully) touch the other end to the (+) lead on the clutch. If it kicks in, suspect a weak breaker. If you get a BIG spark and the test lead instantly begins to heat up, the clutch coil is bad.
used red MN
Well-known Member
- Location
- Coon Rapids, MN
I think he may be talking about an shop air compressor or maybe a 110/ 220 air conditioner. What say you Don? What caused or allowed the short?
Geo-TH,In
Well-known Member
Not exactly sure what you mean by the term "Ohms Out?"
There should be infinate ohms between all wires on any compressor, air or AC. There should be an electrical path between common, start and run. There are cheap capacitor testors on the market to test capacitors. If you don't have a local AC supply house, ebay has good prices on run caps and hard start kits.
My experience is if you trip the breaker right away, you have a bad AC compressor.
GL(good luck)
George
There should be infinate ohms between all wires on any compressor, air or AC. There should be an electrical path between common, start and run. There are cheap capacitor testors on the market to test capacitors. If you don't have a local AC supply house, ebay has good prices on run caps and hard start kits.
My experience is if you trip the breaker right away, you have a bad AC compressor.
GL(good luck)
George
MARK ROBKE
Well-known Member
Is your compressor clutch 1 wire or 2? check on 200 ohm scale-1 wire 3-6 ohms to ground;2 wire 3-6 ohms between them. You can't have 0 ohms because that is a direct path to ground, and therefore, a short. Any higher reading, above 10 or so, your clutch is open. Mark
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