4TWL9048A-SF-1C-EN
39
Compressor Verification: Open
Open?
Compressor Verification:
Open
No
Yes
No
Yes
No
Yes
Replace
Drive
Repair or Replace
Harness
Replace
Co
mpressor
Repair or Replace
Harness
Disconnect compressor wire
harness from drive and manually
check resistance leg-to-leg
Isolate harness. Check for
continuity of harness leads
Visually Inspect
Connection Points:
Drive Side
Open?
Connections
Good?
Verify Compressor
Windings Open
For reference: resistance
should be 0.02-0.03 Ohmns
+VDC -VDC
ELECTRICAL
HAZARD
Failure to follow this
warning could result in
personal injury or death.
WAIT TWO (2) MINUTES
after disconnecting power prior
to touching electrical
components as they may hold
a dangerous charge
of 400VDC, then verify DC
Voltage is less than 42 VDC
at inverter
test points
labeled +VDC and -VDC before
servicing
board.
400 VOLTS
WARNING
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