CHECK AND TEST 1
Step 1
Unscrew cover of mainboard with a Cross-head screwdriver.
Step 2
Disconnect terminals.
Step 3
Check to see if terminal is pushed into the proper final position and whether it is filled with foam.
DIAGNOSIS 1
CHECK AND TEST 2
Step 1
Test the voltage for a long time, at least 5 minutes because heater switches on and off every 5 s.
WARNING! HIGH VOLTAGE!
Step 2
Use multimeter to measure the output for heater in gasket plate.
DIAGNOSIS 2
PROCEDURE 1
Step 1
Unscrew the mainboard.
Step 2
Unfasten the mainboard.
Step 3
Detach earthing wires.
Step 4
Disconnect terminals.
DIAGNOSIS 3
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