21
TROUBLESHOOTING GUIDE
CONDITION
CAUSE
REMEDY
Condensation.
Water heater filled for first time.
Let water heater warm up. Problem should go away.
If it persists, check all plumbing connections for leaks.
Heavy draws of hot water with
Let water heater warm up. Problem should go away.
very cold refill water.
If it persists, check all plumbing connections for leaks.
Water heater is undersized.
Install size of water heater that meets demand.
Combustion .
Insufficient secondary air.
Check that the vent-air intake terminal is not blocked.
Flue clogged.
Clean. Check for source of trouble and correct.
Smoking and carbon
Insufficient secondary air.
Check that the vent-air intake terminal is not blocked.
formation (sooting).
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 valve.
Replace with new gas control valve.
The pilot flame is too small.
Low gas pressure.
Check with utility.
Pilot line or orifice clogged.
Clean. Check for source of trouble and correct.
Smelly water.
High sulfate or mineral content in water.
Change magnesium anode to an aluminum anode
and bleach tank.
