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

Page 37

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37

4) Is the combustion fan motor normal?

5) Is the ignition module operating normally?

.

Check the sparker module.

a.

Measure voltage at connector F8, grey and grey wires.

Normal: 90 ~ 110 VAC

0 VDC (when fan is off)

If normal, check b below.

Faulty: Replace the PCB unit.

(Service Procedure IGE-2, page 47)

b.

# Disconnect connector F8, and measure the

resistance between the two sparker terminals.

Normal: > 1 M Ω

Faulty: Replace the igniter module.

(Service Procedure IGE-5, page 48)

Electrode gap should be 3/16” to 1/4" .

VI - TROUBLESHOOTING

(cont.)

BEFORE CARRYING OUT CHECKS MARKED WITH A # SIGN, DISCONNECT THE POWER SUPPLY.

Motor check.

If error “61” is displayed, check the combustion fan.

a.

Measure voltage at connector A1. Black and red wires.

Normal: 6 ~ 45 VDC (Fan on)

0 VDC (Fan off)

If normal, check item b below.

Faulty: Replace the PCB unit.

(Service Procedure IGE-2, page 47)

Fan revolution sensor check.

b.

Measure voltage at connector A1, black and yellow wires.

Normal: 11 ~ 13 VDC or 3.1 ~ 3.7 K Ω

If normal, check item c below.

Faulty: Replace the PCB unit.

(Service Procedure IGE-2, page 47)

c.

Measure voltage at connector A1, black and white wires.

Normal: 6 ~ 45 VDC or 9 ~ 9.4 K Ω

(33 ~ 400 Hz.)

If normal, proceed to check item 5 below.

Faulty: Replace the combust ion fan motor.

(Service Procedure IGE-5, page 48)

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