9. TROUBLE SHOOTING
Problem | Cause | Solution | 
Spark will not light the pilot after  | Defective ignitor  | Check connections to ignitor  | 
repeated pressing of spark ignitor  | 
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  | good but there is no spark-  | 
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  | replace ignitor  | 
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  | Miss aligned spark electrode  | |
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  | the electrode to pilot if not  | 
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  | adjust by loosening screws  | 
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  | on pilot base. Adjust and re-  | 
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  | tighten  | 
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Pilot will not remain lit  | Defective thermocouple  | |
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  | of thermocouple to rear of  | 
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  | valve  | 
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  | Air in gas line  | |
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Burners will not light when valve and  | Defective switch  | |
burner switch are both on  | 
  | jump wires at switch  | 
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  | Defective thermopile  | |
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  | terminals  | 
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  | (> 250 MV closed circuit)  | 
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  | Thermostat set to low / defective  | |
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  | start unit. Check thermostat  | 
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  | connections  | 
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  | Defective spill switch or Severe down  | |
  | draft.  | |
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Glass fogs up  | Normal conditions - after the appliance  | 
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  | warms up glass will clear  | 
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  | Due to additives in gas glass may dirty  | 
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Blue flames  | Normal during start - flame will yellow as  | 
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  | the appliance heats up.  | 
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Sooting  | Flame impingement  | |
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  | opening shutters  | 
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