PILOT BURNER LIGHTS BUT MAIN BURNER DOES NOT LIGHT
Correct the situation by consulting |
| NO |
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the installation or user’s manual |
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| Does the pilot flame cover 3/8° to 1/2" |
on how to adjust pilot flame. |
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| (10 mm to 12 mm) of igniter/sensor rod? |
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YES
Replace ignition module.
Attach wires firmly.
NO
NO
NO
Is voltage (24 Vac) across terminals MV and MV/PV?
YES
Are the wires securely attached to the main valve operator on the gas control and to terminals MV and MV/PV on ignition module?
Does spark stay on for more than 30 seconds after the pilot is “proven” (lit)?
YES
YES
Replace main gas valve.
Replace cable and/or ground wire.
Replace pilot burner.
NO
NO
Ensure the ground wire and igntion cable are separate from each other (prevents shorting out).
Are they in good condition (not brittle, burnt or cracked?
YES
Is the ceramic insulater surrounding the igniter/sensor rod in good condition (not broken or cracked)?
YES
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Clean rod or replace |
| NO | Is the igniter/sensor rod in good condition |
pilot burner if necessary. |
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| (not worn, corroded, sooted or damaged)? |
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YES
Replace ignition module.
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