26
TROUBLESHOOTING GUIDELINES
These guidelines should be utilized by a qualified service agent.
Problem
Cause
Solution
WATER LEAKS
Improperly sealed, hot or cold supply connection, relief
valve, drain valve, or thermostat threads.
Tighten threaded connections.
Leakage from other appliances or water lines.
Inspect other appliances near water heater.
Condensation of flue products.
Refer to CONDENSATION.
LEAKING T&P VALVE
Thermal expansion in closed water system.
Install thermal expansion tank (DO NOT plug T&P valve).
Improperly seated valve.
Check relief valve for proper operation
(DO NOT plug T&P valve).
SMELLY WATER
High sulfate or mineral content in water supply.
Drain and flush heater thoroughly, then refill.
Bacteria in water supply.
Chlorinate or aerate water supply.
PILOT WILL NOT LIGHT
Gas control knob not positioned correctly.
Refer to LIGHTING INSTRUCTIONS.
Main gas supply off.
Turn on main gas shutoff valve.
Thermocouple malfunction.
Replace pilot assembly and/or thermocouple.
BURNER WILL NOT
STAY LIT
Thermocouple malfunction.
Replace pilot assembly and/or thermocouple.
Defective Gas Control.
Replace Gas Control.
PILOT OUTAGE
Dirty pilot burner.
Clean pilot assembly.
Thermocouple malfunction.
Replace pilot assembly and/or thermocouple.
Defective Gas Control.
Replace Gas Control.
Thermocouple tip is not in contact with pilot flame.
Insert thermocouple correctly.
NOT ENOUGH
HOT WATER
Heater not lit or thermostat not on.
Refer to LIGHTING INSTRUCTIONS.
Thermostat set too low.
Refer to TEMPERATURE REGULATION.
Heater undersized.
Reduce hot water use.
Low gas pressure.
Contact your gas supplier.
Incoming water is unusually cold.
Allow more time for heater to re-heat.
Leaking hot water pipes or fixtures.
Have plumber check and repair leaks.
High temperature limit switch activated.
Contact a service technician to determine cause.
WATER TOO HOT
Thermostat set too high.
Refer to TEMPERATURE REGULATION.
WATER HEATER SOUNDS
Condensation dripping on burner.
Refer to CONDENSATION.
SIZZLING OR
RUMBLING
Sediment or calcium in bottom of heater tank.
Clean sediment from tank. Refer to DRAINING
instructions in Maintenance section of manual.
SOOTING
Improper combustion.
No adjustment available. Contact a service
technician to determine cause.
VENT GAS ODORS
Lack of supply air.
Contact a service technician to determine cause.
Improperly installed vent piping.
Downdraft.
Poor combustion.
