LAARS IGE-199C-5(N,X) - Service Manual - Manual (Page 34)

34
VI - TROUBLESHOOTING (cont.)
Troubleshooting Procedure
Unit’s wiring diagram can be found on page 27.
Appliance fails to operate (even remote control fails to operate).
1) Is the fuse blown?
2) Is the main transformer normal?
Check fuse.
a. Disconnect unit from power supply.
b. # Measure resistance to check the electric fuse
(3 amp)
Normal: less than 1Ω
If normal, proceed to check item 2 below.
Faulty: Replace 3 amp glass fuse. If the fuse
blows again, investigate cause of short circuit.
Check the transformer.
a. Measure the voltage and/or resistance at
connector F, black ~ white wires.
Normal: 100 ~ 120 VAC
51 ~ 63 Ω resistance
Faulty: Check for 120 ~ 125 VAC at the surge
protector, blue ~ brown wires, connector
F
7
.
Resistance reading 51 ~ 63 Ω
If normal, check item 3 on next page.
Faulty: Replace the transformer.
(Service Procedure IGE-7, page 49)
Fuses are located in plastic
holders in the main harness,
on the lower right hand side
of the appliance.
BEFORE CARRYING OUT CHECKS MARKED WITH A # SIGN, DISCONNECT THE POWER SUPPLY.