Troubleshooting Guide - Lennox Hearth Products Radium-NG Installation And Operation Manual

5.0 TROUBLESHOOTING GUIDE

PROBLEM
Igniter sparks but pilot does not light
Pilot lights but then goes out
Igniter electrode at pilot does not spark
The burner stays on for a period of time,
then cuts off
Pilot flame shrinks when fire is on high
Fireplace smells when first lit or in use
14
• No gas to Pilot, check the gas line connections.
• Air not fully purged. Purge supply or wait longer.
• Spark grounding to metal work, reset gap correctly.
• Blocked pilot, clean out internally.
• Severe restriction in gas supply: clear obstruction.
• Faulty thermocouple, replace pilot assembly.
• Blocked pilot, clean out.
• Blocked lint gauze, clean.
• Hold control knob in for longer.
• If the pilot will not stay lit there is a problem with dirt, the gas supply, or
the thermocouple needs replacement. Modifications are dangerous and
can have a serious unseen effect on safety. NEVER MODIFY OR BEND THE
THERMOCOUPLE TO MAKE THE PILOT STAY LIT.
• HT lead detached,refit.
• Check the spark gap (see Section 15.0).
• Faulty piezo unit, replace.
• Debris shorting out electrode, clean.
• Spark shorting to metalwork under tray, realign HT lead.
• Loose or faulty thermocouple, rectify.
• Blocked pilot, clean out.
• Dirt or lint in pilot aeration hole or on the lint gauze, clean thoroughly.
• If the pilot will not stay lit there is a problem with dirt, the gas supply, or
the thermocouple needs replacement. Modifications are dangerous and
can have a serious unseen effect on safety. NEVER MODIFY OR BEND THE
THERMOCOUPLE TO MAKE THE PILOT STAY LIT.
• Poor gas flow to fire, check pressure with fire on high.
• If pressure is low, remove any restriction in pipe-work or valve.
• Check all pipe-work are adequately sized.
• Check meter pressure is adequate.
• If the pilot will not stay lit there is a problem with dirt, the gas supply, or
the thermocouple needs replacement. Modifications are dangerous and
can have a serious unseen effect on safety. NEVER MODIFY OR BEND THE
THERMOCOUPLE TO MAKE THE PILOT STAY LIT.
• Newness smell from brand new appliance.
• Leakage occurring. Carry out leakage test and rectify any problems.
• Combustible materials used in incorrect positions.
• Unit may require a service to remove dust from catalysts.
CORRECTIVE ACTION