15 Troubleshooting
With proper installation, operation, and maintenance your gas appliance will provide years of
A. Intellifire Ignition System
Symptom | Possible Cause | Corrective Action |
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1. Pilot won’t light. The ig- | A. Incorrect wiring. | Verify “S” wire (white) for sensor and “I” wire (orange) for ignitor are |
nitor/module makes noise, |
| connected to correct terminals on module and pilot assembly. |
but no spark. |
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| B. Loose connections or electrical | Verify no loose connections or electrical shorts in wiring from module |
| shorts in the wiring. | to pilot assembly. Verify connections underneath pilot assembly are |
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| tight; also verify connections are not grounding out to metal chas- |
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| sis, pilot burner, pilot enclosure, mesh screen if present, or any other |
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| 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 ap- |
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| proximately .17 inch or 1/8 in. (3 mm). |
| D. Module. | Turn ON/OFF rocker switch or wall switch to OFF position. Remove |
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| ignitor wire “I” from module. Place a grounded wire about 3/16 in. (5 |
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| mm) away from “I” terminal on module. Place ON/OFF rocker switch |
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| or wall switch in ON position. If there is no spark at “I” terminal mod- |
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| ule must be replaced. If there is a spark at “I” terminal, module is fine. |
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| Inspect pilot assembly for shorted sparker wire or cracked insulator |
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| around electrode. Replace pilot if necessary. |
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2. Pilot won’t light, there is no | A. No power or transformer in- | Verify that transformer is installed and plugged into module. Check |
noise or spark. | stalled incorrectly. | voltage of transformer under load at spade connection on module |
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| with ON/OFF switch in ON position. Acceptable readings of a good |
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| transformer are between 3.2 and 2.8 volts AC. |
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| B. A shorted or loose connection | Remove and reinstall the wiring harness that plugs into module. Ver- |
| in wiring configuration or wiring | ify there is a tight fit. Verify pilot assembly wiring to module. Remove |
| harness. | and verify continuity of each wire in wiring harness. Replace any |
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| 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. |
| E. Module. | Turn ON/OFF rocker switch or wall switch to OFF position. Remove |
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| ignitor wire “I” from module. Place ON/OFF rocker switch or wall |
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| switch in ON position. If there is no spark at “I” terminal module must |
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| be replaced. If there is a spark at “I” terminal, module is fine. Inspect |
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| pilot assembly for shorted sparker wire or cracked insulator around |
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| electrode. |
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3. Pilot sparks, but Pilot will | A. Gas supply. | Verify that incoming gas line ball valve is “open”. Verify that inlet |
not light. |
| pressure reading is within acceptable limits, inlet pressure must not |
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| exceed 14 in. W.C. |
| B. Ignitor gap is incorrect. | Verify that spark gap from ignitor to pilot hood is .17 in. or 1/8 in (3 |
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| mm). |
| C. Module is not grounded. | Verify module is securely grounded to metal chassis of appliance. |
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| D. Module voltage output / Valve/ | Verify battery voltage is at least 2.7 volts. Replace batteries if voltage |
| Pilot solenoid ohms readings. | is below 2.7. |
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34 | Heatilator • Caliber Mesh BV Series • |
