MN-35949 • Rev 04 • 06/16 • Combitherm® CT PROformance™ Series • Technical Service Manual • 63
Troubleshooting
PROformance: Appliance Dead — No Display or Operation
Is power connected to the
appliance?
Yes
No
Install power to the
appliance, turn on main
circuit breaker or plug in
the appliance.
Is there correct voltage at
the power source (outlet)?
No
Inspect and/or reset the
circuit breaker.
Yes
Is there correct voltage at
the main terminal block
(L1/2/3)?
No
Is there voltage at the F1
fuse block?
Repair the wiring.
Yes
Is there continuity through
the terminal module 8A
fuse?
Replace the fuse and test.
No
Yes
Is there voltage across L/N
at the power supply?
Inspect/Repair wiring between
terminal block 33-3 and power
supply terminal L, and between
terminal block terminal 27-1
and power supply terminal N.
Yes
Is there 12 VDC output
from the power supply?
Replace faulty power
supply.
Yes
Is there 12 VDC across
the Control Board (CB)
terminal X07 pins 1-4?
Repair wiring between power
supply and the Control Board
(CB) terminal X07.
Is there 12 VDC across
Interface Board (IB)
terminal X07 pins 1-4?
Repair the wiring between
Control Board (CB) X07 and
Interface Board (IB) X07.
No
Inspect, test and repair
or replace the following
connections and components
as needed.
Yes
Is the ethernet connection
between the Interface Board (IB)
X06 and the Control Board (CB)
X15 okay?
Yes
Is the Interface Board (IB) or
touch display backlight cable
connection X04 okay?
Is the Interface Board (IB)
or touch display connector
cable X03 okay?
Is the Interface Board (IB)
or touch display or LVDS
cable X01 okay?
Yes
Is the Interface Board (IB)
on/off board input at X05
okay?
Yes
Yes
No
No
No
Yes
No
Repair the ethernet
connection.
No
Repair cable
connection X03.
No
Repair the cable
connection X04.
No
Yes
No
Repair the LVDS cable X01.
Repair on/off input X05.
No
Reair or replace the faulty
cord, plug, or wiring.
Содержание COMBITHERM CT PROFORMANCE 10-10E
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