26
TROUBLESHOOTING GUIDE
CONDITION
CAUSE
CORRECTIVE ACTION
Leaking water .
Poorly sealed, hot or cold water connections, gas
control threads, relief valve, or drain valve.
Tighten threaded connections.
Leakage from plumbing system or other appliances. Inspect plumbing system and other appliances.
Condensation.
Refer to Condensation.
Water drips from the relief
valve .
Heater stacking.
Lower gas control setting.
Excessive water pressure.
Install a pressure-reducing valve.
Thermal expansion in a closed water system.
Install an expansion tank.
Improperly seated valve.
Check relief valve works properly and replace, if necessary.
The gas control fails
to shut off .
Defective gas control.
Replace with new gas control.
Improper calibration.
Replace gas control.
Condensation .
Water heater filled for first time.
Let water heater warm up. Problem should go away. If it per-
sists, check all plumbing connections for leaks.
Heavy draws of hot water with
very cold refill water.
Let water heater warm up. Problem should go away.
If it persists, check all plumbing connections for leaks.
Water heater is undersized.
Install size of water heater that meets demand.
Combustion odours .
Insufficient secondary air.
Check that the air intake terminal is not blocked.
Flue clogged.
Clean. Check for source of trouble and correct.
Smoking and carbon
formation (sooting) .
Insufficient secondary air.
Check that the air intake terminal is not blocked.
Low gas pressure.
Check with gas utility company.
Burner flame yellow, lazy.
Refer to
The burner flame is yellow and lazy.
Flue clogged.
Clean. Check for source of trouble and correct.
Defective gas control.
Replace with new gas control.
Smelly water .
High sulfate or mineral content in water.
Change magnesium anode to an aluminum anode and bleach
tank.
