Elusive Low Voltage Short, Plus Other Problems
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Found condenser not running, replaced compressor, burnt contactor, and bypassed disconnect.
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Video Summary
AI GeneratedThe technician is diagnosing a 1992 cooling system that is failing to cool properly. Upon inspection, the technician identifies a short in the contactor causing it to cycle rapidly and notes that the system pressures are unstable and incorrect. The technician intends to quote the customer for a new contactor and a new disconnect to resolve the electrical issues.
I literally just set my battery on this and it came on.
Wires go
to a new compressor.
1992 system.
Contactor to short.
Does not feel
very cold.
Let's see why this thing is shorting.
Something.
It's
empty.
Something
is
causing
that
contactor
to
pull
in
and
out.
Freon this is.
2B.
That's at 32 degrees.
4-7C is at 30.
I think this is the one
we're looking for, 422.
Still, those pressures
just don't seem right.
Get
to
stabilize.
Not real sure why that compressor was replaced,
but I'm going to quote them a new contactor
and a new disconnect.
See if they'll
let me do it.