Rheem Residential 60 Use & Care Manual page 22

Before You Call For Service...
Problem
Rumbling noise
Relief valve
producing popping
noise or draining
Not enough or
no hot water
Water is too hot
Pilot Burner Lights, but
Main Burner will not
stay lit.
CAUTION: For your safety DO NOT attempt repair of gas piping, 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 burner 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 burner. 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.