Blodgett KLS-20G Installation, Operation And Maintenance Manual page 30

TROUBLESHOOTING:
PROBLEM
Excessive flame rollout on ignition, carboning
Unit slow to preheat and slow to recover
Unit continuously locks out
LOOK FOR
- Natural gas unit on propane.
- Excessive gas pressure.
- Incorrect orifice size.
- Faulty regulator in gas control.
- Propane gas on natural.
- Low gas pressure.
- Incorrect orifice sizes.
- Loss of vacuum.
- Faulty regulator in gas control.
- Pilot gas adjusted too low.
- Excessive draft condition.
- Excessive steam around bottom of unit
- Faulty transformer.
- Faulty electronic module.
- Faulty ignitor cable.
- Faulty spark igniter.
- Faulty gas control.
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during ope