3 Troubleshooting
56
Table 3I Troubleshooting Chart - Combustion Levels
POSSIBLE CAUSE CORRECTIVE ACTION
Vent/Air Intake Length
or Obstruction
• Refer to Section 2 - General Venting of the Crest Installation and Operation Manual
for the proper venting and air intake methods for the Crest boiler.
• Check for obstructions at the vent/air intake terminals.
• Check/replace filter.
Gas Supply Pressure
• Refer to Section 6 - Gas Connections of the Crest Installation and Operation
Manual for the proper gas supply for the Crest boiler.
Dirty/Damaged Burner
• Refer to this manual for burner removal and cleaning procedures.
• Replace burner if necessary.
Gas Valve Adjustment
• Refer to this manual for the gas valve adjustment procedure.
Service Manual
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