LG MH-1355M Service Manual page 39

COMPONENTS
FUSE
HEATER ELEMENT
(Wire leads removed.)
SOLENOID
TEST PROCEDURE
Check for continuity of the fuse
with an Ohm-meter
NOTE: If the fuse is blown, check the primary, the secondary, and the
monitor switches before replacing the fuse.
(Refer to Test Procedure Switches on page 25.)
If the fuse is blown by improper switch operation replace the defective
switch and the fuse at the same time.
Replace just the fuse if the switches operate normally.
Measure the resistance.
(Ohm-meter scale: Rx1)
Measure the resistance with 500V-100M
Ohm insulation resistance meter.
NOTE: Make sure heater is fully cooled when tested.
– 39 –
RESULTS
Normal
Fig. 33
Normal: Approx. 9.3 ohm.
(at 20~30°C)
Fig. 34
Normal: more than 0.5 M ohm.
Fig. 35
Normal: Approx. 2200 ohm.
Abnormal: Infinite or Several
ohms.
Fig. 36
Abnormal