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E204
Communications
Error
Verify
communication
cable connection
at each end.
Error
Persists?
Finished.
Verify cable pins
are not bent or
broken or cable
damaged.
Damaged
cable?
Replace cable.
Error
persists?
Finished
Yes
Yes
No
Replace
controller.
Replace VSD.
No
Less than
17.0 VAC?
Yes
Replace
transformer.
Clip a volt meter
onto F1 and F2
fuse holder base
closest to J3. THEN
turn on power. Measure
22 VAC secondary.
Ds2 On?
(Micro 5V)
Check Ds2 on
VSD board.
Yes
No
No
Yes
No
CAUTION!
Disconnect
power and wait
for high voltage
indicator to go off.