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DRIP FROM RELIEF VALVE
1.
Excessive water pressure
1.
Use a pressure reducing valve and relief
valve
2.
Heater stacking
2.
Lower the thermostat setting
3.
Closed water system
3.
See "Closed System/Thermal
Expansion"
THERMOSTAT
FAILS TO
1.
Thermostat
not functioning properly
1.
Replace thermostat
SHUT-OFF
2.
Improper calibration
2.
Replace thermostat
COMBUSTION
ODORS
1.
Insufficient secondary air
1.
Provide ventilation to water heater. Check
flue way, flue baffle, and burner
2.
Flue clogged
2.
Clean, locate source and correct
3.
Heater installed in a confined area
3.
Provide fresh air ventilation
SMOKING AND CARBON
1.
Insufficient secondary air
1.
FORMATION (SOOTING)
2.
Low gas pressure
3.
Flue clogged
4.
Thermostat
not functioning properly
5.
Heater installed in a confined area
6.
Burner flame yellow-lazy
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
1.
Orifice too large
1.
Replace with correct orifice
AND LIFTS OFF PORTS
2.
High gas pressure
2.
Check with gas utility company
3.
Flue clogged
3.
Clean flue and bumer-locate source and
correct
4.
Cold drafts
4.
Locate source and correct
BURNER FLAME TOO HIGH
1.
Orifice too large
1.
Replace with correct orifice
PILOT FLAME
1.
Pilot line or orifice clogged
1.
Clean, locate source and correct
TOO SMALL
2.
Low gas pressure
2.
Check with gas utility company
33
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Table of Contents
Troubleshooting
