Manufacturer's Warranty

32
TROUBLESHOOTING GUIDE (Continued)
DRIP FROM RELIEF VALVE 1. Excessive water pressure
2. Heater stacking
3. Closed water system
1. Use a pressure reducing valve and relief
valve
2. Lower the thermostat setting
3. See “Closed System/Thermal Expansion”
THERMOSTAT FAILS TO
SHUT-OFF
1. Thermostat not functioning properly
2. Improper calibration
1. Replace thermostat
2. Replace thermostat
COMBUSTION ODORS 1. Insufficient secondary air
2. Flue clogged
3. Heater installed in a confined area
1. Provide ventilation to water heater. Check
flue way, flue baffle, and burner
2. Clean, locate source and correct
3. Provide fresh air ventilation
SMOKING AND CARBON
FORMATION (SOOTING)
1. Insufficient secondary air
2. Low gas pressure
3. Flue clogged
4. Thermostat not functioning properly
5. Heater installed in a confined area
6. Burner flame yellow-lazy
1. Provide ventilation to water heater. Check
flue way, flue baffle, burner
2. Check with gas utility company
3. Clean, locate source and correct
4. Replace thermostat
5. Provide fresh air ventilation
6. See “Burner Flame Yellow-Lazy”
CONDENSATION 1. Temperature setting too low 1. Increase the temperature setting
BURNER FLAME FLOATS
AND LIFTS OFF PORTS
1. Orifice too large
2. High gas pressure
3. Flue clogged
4. Cold drafts
1. Replace with correct orifice
2. Check with gas utility company
3. Clean flue and burner-locate source and
correct
4. Locate source and correct
BURNER FLAME TOO HIGH 1. Orifice too large 1. Replace with correct orifice
PILOT FLAME
TOO SMALL
1. Pilot line or orifice clogged
2. Low gas pressure
1. Clean, locate source and correct
2. Check with gas utility company