GE AP13204-4 Use And Care Manual page 22

Before you call for service...
Troubleshooting Tips
Problem
Rumbling noise
Relief valve
producing popping
noise or draining
Not enough or
no hot water
Water is too hot
Pilot Lights, but
Burner will not
stay lit
!
CAUTION:
For your safety DO NOT attempt repair of gas piping, gas control (gas control (thermostat)),
burners, vent connectors or other safety devices. Refer repairs to qualified service personnel.
22
Possible Causes
Scale and sediment
in tank.
Pressure build up
caused by thermal
expansion to a
closed system.
Water usage may have
exceeded the capacity
of the water heater.
Low gas pressure.
The pilot may be out.
The gas control (thermostat)
may be set too low.
Leaking or open hot water
faucets.
Combustion Shutoff System
tripped.
The gas control (thermostat)
is set too high.
Gas control (thermostat).
Defective
Combustion Shutoff System
tripped.
What To Do
Clean tank.
This is an unacceptable condition and must be
corrected. Contact the water supplier or plumbing
contractor on how to correct this. Do not plug the
relief valve outlet.
Wait for the water heater to recover after an abnormal
demand.
Check gas supply pressure and manifold pressure.
Check the pilot. If necessary, relight using the
instructions in the "Lighting The Water Heater" section
of this manual.
See the "Water Temperature Setting of The Water
Heater" section of this manual.
Make sure all faucets are closed.
Contact a qualified service technician.
See the "Water Temperature Setting of The Water
Heater" section of this manual.
Contact a qualified service technician to replace the
gas control (thermostat).
Contact a qualified service technician.