Groen CC20-E Operator's Manual page 244

Probable Cause
Relay K6 on relay board may not
be operating properly. (Continued)
Start switch MR1 not operating
properly.
(Revised 1/02)
PROBLEM: FAN MOTOR DOES NOT OPERATE - (Continued)
Open circuit measured. Replace the relay board.
Coil has continuity. Refer to schematic diagram (page
4-19 or 5-19) and continuity check wiring harness.
Replace defective wire and/or wire terminal.
If you need to replace the capacitor that has the 15K-ohm
resistor, be sure the resistor is reinstalled on C1. See
schematic diagram on page 4-19 or 5-19. No resistor
should be connected between terminals on C2. C1 can be
used for C2 if resistor is removed from terminals. See
page 4-19 or 5-19.
Measure starting current through white wire from full motor
stop. Current should be approximately 12-15 amps, then
drop to 4.5 ± 1 amp.
Proper current not measured. Replace MR1. See page
4-19 or 5-19.
Proper current measured. Refer to schematic diagram
(page 4-19 or 5-19) and continuity check wiring harness.
Check voltage across contacts 2 and 4.
Voltage measured. Replace start switch MR1.
See page 4-19 or 5-19.
No voltage measured. Disconnect oven from branch
circuit and check coil continuity between MR1-3 and
MR1-4.
TROUBLESHOOTING
Corrective Action
WARNING
Be sure oven is disconnected from branch
circuit power before performing any repair
work.
IMPORTANT
7-23