Heating Basics â Gas Valve Systems - Robertshaw Thermostats
Heating Basics â Gas Valve Systems - Robertshaw Thermostats
Heating Basics â Gas Valve Systems - Robertshaw Thermostats
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Troubleshooting Tips for <strong>Gas</strong> <strong>Systems</strong><br />
Condition Possible Cause Possible Cure<br />
Flame Too Large<br />
1. Outlet pressure too high<br />
2. Defective regulator<br />
3. Orifice too large<br />
1. Outlet pressure too high<br />
2. Defective regulator<br />
3. Orifice too large<br />
Noisy Flame 1. Excessive primary air<br />
2. Noisy Pilot<br />
3. Burr in orifice<br />
1. Adjust air shutter<br />
2. See Pilot Troubleshooting slide<br />
3. Remove burr or replace orifice<br />
Yellow Tip Flame<br />
Floating Flame<br />
1. Too little primary air<br />
2. Clogged burner ports<br />
3. Misaligned orifice<br />
1. Blocked venting<br />
2. Insufficient primary air<br />
1. Adjust air shutter<br />
2. Clean burner ports<br />
3. Realign orifice and burner<br />
1. Inspect vent and clean<br />
2. Adjust air shutter
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