14 Troubleshooting
With proper installation, operation, and maintenance your gas appliance will provide years of
A. IntelliFire Ignition System
Sympton | Possible Cause | Corrective Action | |
1. The ignitor/module | a. Incorrect wiring. | Verify “S” wire (white) for sensor and “I” wire (orange) for ignitor are connected to | |
makes noise, but no |
| correct terminals on module and pilot assembly. Reversed wires at the module may | |
spark. |
| cause system to make sparking noise, but spark may not be present at pilot hood. | |
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| b. Loose connections | Verify no loose connections or electrical shorts in wiring from module to pilot assem- | |
| or electrical shorts in | bly. Rod closest to pilot hood should be ignitor. Verify connections underneath pilot | |
| the wiring. | assembly are tight; also verify connections are not grounding out to metal chassis, | |
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| pilot burner, pilot enclosure, mesh screen if present, or any other metal object. | |
| c. Ignitor gap is too | Verify gap of igniter to pilot hood. The gap should be approximately .17 inch or 1/8 | |
| large. | inch. | |
| d. Faulty module. | Turn ON/OFF rocker switch or wall switch to OFF position. Remove ignitor wire | |
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| “I” from module. Place ON/OFF Rocker switch or wall switch in ON position. Hold | |
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| ground wire about 3/16 inch away from “I” terminal on module. If there is no spark | |
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| at “I” terminal module must be replaced. If there is a spark at “I” terminal, module | |
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| is fine. Inspect pilot assembly for shorted sparker wire or cracked insulator around | |
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| electrode. | |
2. Pilot won’t light, | a. Transformer | Verify that transformer is installed and plugged into module. Check voltage of trans- | |
there is no noise or | installed correctly. | former under load at spade connection on module with ON/OFF switch in ON posi- | |
spark. |
| tion. Acceptable readings of a good transformer are between 3.2 and 2.8 volts AC. | |
| b. A shorted or loose | Remove and reinstall the wiring harness that plugs into module. Verify there is a | |
| connection in wiring | tight fit. Verify pilot assembly wiring to module. Remove and verify continuity of each | |
| configuration or wiring | wire in wiring harness. | |
| harness. |
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| c. Improper wall switch | Verify that 110/VAC power is “ON” to junction box. | |
| wiring. |
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| d. Module not | Verify black ground wire from module wire harness is grounded to metal chassis of | |
| grounded. | appliance. | |
| e. Faulty module. | Turn ON/OFF rocker switch or wall switch to OFF position. Remove ignitor wire | |
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| “I” from module. Place ON/OFF Rocker switch or wall switch in ON position. Hold | |
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| ground wire about 3/16 inch away from “I” terminal on module. If there is no spark | |
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| at “I” terminal module must be replaced. If there is a spark at “I” terminal, module | |
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| is fine. Inspect pilot assembly for shorted sparker wire or cracked insulator around | |
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| electrode. | |
3. Pilot lights but | a. A shorted or loose | Verify all connections to wiring diagram in manual. Verify connections underneath | |
continues to spark, | connection in sensor | pilot assembly are tight. Verify connections are not grounding out to metal chassis, | |
and main burner will | rod. | pilot burner, pilot enclosure or screen if present, or any other metal object. | |
not ignite. (If the pilot | b. Poor flame rectifi- | Verify that flame is engulfing sensor rod. If the pilot assembly does not have a | |
continues to spark | |||
cation or contaminated | ground strap, consider installing one to increase flame rectification. Verify correct pi- | ||
after the pilot flame | |||
sensor rod. | lot orifice is installed and inlet gas specifications. Flame carries rectification current, | ||
has been lit, flame | |||
| not the gas. If flame lifts from pilot hood, the circuit is broken. A wrong orifice or too | ||
rectification has not |
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| high an inlet pressure can cause pilot flame to lift. The sensor rod may be contami- | ||
occurred.) |
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| nated. Polish sensor rod with fine steel wool. | ||
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| c. Module is not | Verify that module is securely grounded to metal chassis of appliance. Verify that | |
| grounded. | wire harness is firmly connected to module. |
Heat & Glo • Soho24B • | 41 |