15 Troubleshooting
With proper installation, operation, and maintenance your gas appliance will provide years of
A. IntelliFire Plus™ Ignition System
Symptom | Possible Cause | Corrective Action | |
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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 |
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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 | |
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| are tight; also verify igniter and flame sense wires are not grounding | |
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| out to metal chassis, pilot burner, pilot enclosure, mesh screen if | |
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| present, or any other metal object. | |
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| C. Ignitor gap is too large. | Verify gap of igniter to right side of pilot hood. The gap should be | |
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| approximately .17 in. or 1/8 in. (3 mm). | |
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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- | |
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| tery power supply voltage must be at least 4 volts. If less than 4 | |
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| volts, replace batteries. | |
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| 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 | |
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| any damaged components. | |
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| C. Improper wall switch wiring. | Verify that 110/VAC power is “ON” to junction box. | |
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| D. Module not grounded. | Verify black ground wire from module wire harness is grounded to | |
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| metal chassis of appliance. | |
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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. | |
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| B. Ignitor gap is too large. | Verify gap of igniter to right side of pilot hood. The gap should be | |
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| approximately .17 in. or 1/8 in. (3 mm). | |
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| C. Module is not grounded. | Verify module is securely grounded to metal chassis of appliance. | |
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| D. Pilot valve solenoid. | Verify that 1.5 to 1.8 VDC is supplied to pilot solenoid from module. | |
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| If below 1.5 volts, replace module. If 1.5 volts or greater, replace | |
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| valve. | |
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Heat & Glo • | 57 |