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PROBLEM POSSIBLE CAUSE(S) CORRECTIVE ACTION
PILOT WILL NOT REMAIN LIT 1. Air in gas line
2. Dirt in gas lines
3. Pilot line or orifice clogged
4. Thermocouple connection loose
5. Non-functioning thermocouple
6. Cold drafts
7. Flammable vapors incident, Flame
Lock
TM
function utilized
8. Low gas pressure
9. Air for combustion obstructed
10. Pilot dirty
1. Bleed the air from the gas line
2. Notify utility-install dirt trap in gas line
3. Clean, locate source and correct
4. Finger tighten; then 1/2 turn with wrench
5. Replace thermocouple
6. Locate source and correct
7. Eliminate flammable vapor source(s)
Call 1-877-817-6750
8. Check with gas utility company
9. See maintenance section for inspection and
cleaning of flame-trap & burner
10. Clean pilot
HIGH OPERATION COSTS 1. Thermostat set too high
2. Sediment or lime in tank
3. Water heater too small for job
4. Wrong piping connections
5. Leaking faucets
6. Gas leaks
7. Wasted hot water
8. Long runs of exposed piping
9. Hot water piping in exposed wall
1. Set temperature dial to lower setting
2. Drain/flush-provide water treatment if needed
3. Install adequate heater
4. Correct piping-dip tube must be in cold inlet
5. Repair faucets
6. Check with utility-repair at once
7. Advise customer
8. Insulate piping
9. Insulate piping
INSUFFICIENT HOT WATER 1. Thermostat set too low
2. Sediment or lime in tank
3. Water heater too small
4. Wrong piping connections
5. Leaking faucets
6. Wasted hot water
7. Long runs of exposed piping
8. Hot water piping in outside wall
9. Low gas pressure
1. Turn temperature dial to desired setting
2. Drain/flush-provide water treatment if needed
3. Install adequate heater
4. Correct piping-dip tube must be in cold inlet
5 Repair faucets
6. Advise customer
7. Insulate piping
8. Insulate piping
9. Check with gas utility company
SLOW HOT WATER
RECOVERY
1. Insufficient air
2. Flue clogged
3. Low gas pressure
4. Improper calibration
5. Thermostat set too low
6. Water heater too small
7. Wrong piping connections
8. Wasted hot water
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. Turn temperature dial to desired setting
6. Install adequate heater
7. Correct piping-dip tube must be in cold inlet
8. Advise customer
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. Non-functioning thermostat
2. Improper calibration
1. Replace thermostat
2. Replace thermostat
COMBUSTION ODORS 1. Insufficient 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. Flammable vapor incident 1. Call 1-877-817-6750
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
5. Dirty burner screen
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
5. Clean burner screen. See “Natural Gas Burner
(Ultra Low Nox)” section of this manual.
FLAME BURNS AT ORIFICE 1. Non-functioning thermostat
2. Low gas pressure
3. Non-functioning burner
1. Replace thermostat
2. Check with gas utility company
3. Replace burner assembly
PILOT FLAME TOO SMALL 1. Pilot line or orifice clogged
2. Low gas pressure
3. Dirty pilot
1. Clean, locate source and correct
2. Check with gas utility company
3. Clean pilot