Heat & Glo LifeStyle COSMO-I30, COSMO-I35 Troubleshooting, IntelliFire Plus Ignition System

Symptom

Possible Cause

Corrective Action

1. Pilot won’t light.

A. Incorrect wiring.

Verify “S” wire (white) for sensor and “I” wire (orange) for ignitor are

The ignitor/module

connected to correct terminals on module and pilot assembly.

makes noise, but no

B. Loose connections or electrical

Verify no loose connections or electrical shorts in wiring from mod-

spark.

shorts in the wiring.

ule to pilot assembly. Verify connections underneath pilot assembly

are tight; also verify igniter and flame sense wires are not grounding

out to metal chassis, pilot burner, pilot enclosure, mesh screen if

present, or any other metal object.

C. Ignitor gap is too large.

Verify gap of igniter to right side of pilot hood. The gap should be

approximately .17 in. or 1/8 in. (3 mm).

2. Pilot won’t light,

A. No power, transformer installed

Verify that transformer is installed and plugged into module. Check

there is no noise or

incorrectly, or depleted batteries.

voltage of transformer at connection to module. Acceptable read-

spark.

ings of a good transformer are between 6.4 and 6.6 volts AC. Bat-

tery power supply voltage must be at least 4 volts. If below 4 volts,

replace batteries.

B. A shorted or loose connection in

Remove and reinstall the wiring harness that plugs into module.

wiring configuration or wiring har-

Verify there is a tight fit. Verify pilot assembly wiring to module. Re-

ness.

move and verify continuity of each wire in wiring harness. Replace

any damaged components.

C. Improper wall switch wiring.

Verify that 120/VAC power is “ON” to junction box.

D. Module not grounded.

Verify black ground wire from module wire harness is grounded to

metal chassis of appliance.

3. Pilot sparks, but

A. Gas supply.

Verify that incoming gas line ball valve is “open”. Verify that inlet

Pilot will not light.

pressure reading is within acceptable limits.

B. Ignitor gap is too large.

Verify gap of igniter to right side of pilot hood. The gap should be

approximately .17 in. or 1/8 in. (3 mm).

C. Module is not grounded.

Verify module is securely grounded to metal chassis of appliance.

D. Pilot valve solenoid

Verify that 1.5 to 1.8 VDC is supplied to pilot solenoid from module.

If below 1.5 volts, replace module. If 1.5 volts or greater, replace

valve.

Heat & Glo • Cosmo-I30, Cosmo-I35 • 2239-900 Rev. H • 1/11

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