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Before You Call For Service…
Problem Possible Cause
Check shutoff valve and open fully.
Hot water faucet is not fully opened.
Water piping is frozen. Allow piping to thaw
No electricity or water supply is cut off.
Unit is not "ON".
The temperature may be set too low.
Increase the temperature setting.
Mixing Valve malfunction (if applicable).
Check and replace if necessary.
See instructions for Error Code and if
required, contact a dealer for service.
The temperature may be set too low.
Increase the temperature setting.
The gas valve is not fully opened.
Check and open the gas valve fully.
Water too hot. The temperature is set too high.
Decrease the temperature setting.
Water shutoff valve is not fully opened.
Check shutoff valve and open fully.
Small amount of water has been heated.
Allow more water to flow.
Turn the unit "ON" by the button on the
remote control.
Not enough or no hot
water.
Water not hot
enough.
Error code displayed on remote controller.
Water shutoff valve is not fully opened.
Open hot water faucet completely. (The
main burner goes off when incoming
water volume is inade
q
uate.
)
Check that proper power is being supplied
and/or water supply is adequate.
Fan continues to
rotate after hot water
faucet is closed.
Normal operation. There is no need to
call for service.
This function is to supply hot water when
the hot water faucet is reopened.
What To Do
Troubleshooting Tips
Save time and money! Review the charts on the following pages first and you may not need to call for service.
This water heater incorporates a combustion shut off device that shuts the operation of the water heater
down if undesirable combustion conditions occur. Such as the presence of a blockage of the combustion
air inlet vent. Please contact a Qualified Service Technician if this occurs.
CAUTION: For your safety DO NOT attempt repair of electrical wiring, gas piping, remote control, burners, vent
connectors or other safety devices. Refer repairs to qualified service personnel.
CAUTION: Make certain power to water heater is “OFF” before removing protective cover FOR ANY REASON.
CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and
dangerous operation. VERIFY PROPER OPERATION AFTER SERVICING.