Table of Contents
Advertisement
PROBLEM
SLOW HOT WATER
RECOVERY
1,
2.
3.
4.
5.
6.
POSSIBLE CAUSE(S)
insufficient combustion air
Water
heater
flue
or
vent
system
blocked
Low gas pressure
Improper calibration
Base-Ring Filter blocked with lint/dust
CORRECTIVE
ACTION
1.
Provide ventilation to water heater. Check flue
way, flue baffle, and burner
2.
Clean flue, locate source and correct
3.
Check with gas utility company
4.
Replace thermostat
5.
Clean
filter,
See
"External
Cleaning
&
Inspection of the Base-Ring
Filter" section.
Clean filter, See "Cleaning
the Combustion
Chamber and Flame-Arrestor"
section.
FVIR Flame Arrestor
blocked with lint/
6.
dust.
DRIP FROM RELIEF VALVE
1.
Excessive waterpressure
1.
Use a pressure
reducing
valve and
relief
2.
Heater stacking
valve
3.
Closed water system
2.
Lower the thermostat setting
3.
See "Closed System/Thermal
Expansion"
THERMOSTAT
FAILS TO
Thermostat
not functioning properly
1.
Replace thermostat
SHUT-OFF
Improper calibration
2.
Replace thermostat
COMBUSTION
ODORS
Insufficient combustion air
1.
Water
heater
flue
or
vent
system
blocked
Heater installed in a confined area
Base-Ring Filter blocked with lint/dust
FVIR Flame Arrestor
blocked with lint/
dust.
1,
2.
1.
2.
3.
4.
5.
1.
Insufficient combustion air
SMOKING AND CARBON
FORMATION (SOOTING)
2.
Low gas pressure
3.
Water
heater
flue
or
vent
system
blocked
4.
Thermostat
not functioning properly
5.
Heater installed in a confined area
6.
Burner flame yellow-lazy
7.
Base-Ring Filter blocked with lint/dust
2,
Provide ventilation to water heater. Check flue
way, flue baffle, and burner
Clean, locate source and correct
3.
Provide fresh air ventilation
4.
Clean
filter,
See
"External
Cleaning
&
Inspection of the Base-Ring
Filter" section.
5.
Clean filter, See "Cleaning
the Combustion
Chamber and Flame-Arrestor"
section.
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"
7.
Clean
filter,
See
"External
Cleaning
&
Inspection of the Base-Ring
Filter" section.
Clean filter, See "Cleaning
the Combustion
Chamber and Flame-Arrestor"
section.
8.
FVIR Flame Arrestor
blocked with lint/
8.
dust.
CONDENSATION
1.
Temperature setting too low
1.
Increase the temperature setting.
Refer to the
"Condensation"
sub-section
of this manual's
Troubleshooting
Guide.
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.
Water
heater
flue
or
vent
system
3.
Clean flue and burner-locate source and correct
blocked
4.
Cold drafts
4.
Locate source and correct
BURNER FLAME TOO HIGH
1.
Orifice too large
1.
Replace with correct orifice
FLAME BURNS AT ORIFICE
1.
Thermostat
not functioning properly
1.
Replace thermostat
2.
Low gas pressure
2.
Check with gas utility company
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
38
Hide quick links:
Advertisement
Table of Contents
Troubleshooting
