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