193
EC7
EC7: Clutch TRIAC sensing failure
EC7
Clutch mechanism failure, Main board defective, Wiring/connection problem.
Checks to perform :
WARNING
Check that all the connectors are correctly inserted.
Is Clutch assembled properly? (Check for any damage) Is
Clutch in good condition?
Replace / Repair the Clutch and repeat the Diagnostic
Cycle to check for any further alarms.
Is the resistance measurement of the clutch approximately
2800Ω to 3100Ω ? (Measure it directly on the clutch
terminals without wiring).(See Fig. 1)
Replace the Clutch and repeat the Diagnostic Cycle to
check for any further alarms
Is the resistance measurement of clutch approximately
2800Ω to 3100Ω ? (Measure it directly on Clutch wiring
connector on the Main Control Board side between
terminals J9-1 & J20-6) (See Fig. 2)
Replace / Repair the wiring and repeat the Diagnostic
Cycle to check for any further alarms.
Is the resistance measurement of Motor approximately 6Ω
to 8Ω? (Measure it directly on the Motor wiring connector
on the Motor Control Board side between terminals J2-1
& J2-2, J2-2 & J2-3 and J2-3 & J2-1) (See Fig. 2)
Replace / Repair the wiring and repeat the Diagnostic
Cycle to check for any further alarms.
Replace the Main Control Board and repeat the Diagnostic
Cycle to check for any further alarms.
NO
Y
E
S
NO
Y
E
S
NO
Y
E
S
NO
Y
E
S
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