INSTALLATION AND OPERATION MANUAL, GAS BOILERS,
MODELS CG-214(E), CG-314(E), CG-414(E), CG-220(E), CG-320(E), CG-325(E), CG-330(E)
PART NUMBER 10042R3
21
2005-12-19
8.0 TROUBLESHOOTING
BURNERS PRODUCE CARBON DEPOSITS
1. Wrong size orifices.
2. Burner air not adjusted properly.
3. Wrong gas supply.
4. Incorrect pressure at supply.
PILOT DOES NOT LIGHT
1. Gas supply to unit is OFF.
2. Power supply is OFF.
3. Gas control knob is OFF.
4. Dirty or loose wire connection to module - clean and/or tighten.
5. Ignitor cable, shorting out - check that not in contact with metal or damaged; may require
replacement.
6. Defective control or module.
7. Unit goes into 100% lockout - turn off and try again in five minutes.
8. Dirty flame sensor - clean with emery cloth.
9. Cracked ceramic insulator - replace pilot burner/ignitor sensor.
10.
Too much draft.
WARNING: The boiler and its parts are hot. Use care when operating,
cleaning, or servicing the boiler.