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Before you call
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 variety of shut off devices that
prevents the operation of the water heater down if undesirable combustion conditions
occur. Such as the presence of a blockage of the combustion air vent insufficient gas
or pressure which can impact the safe operation of the water heater.
Problem
Water shutoff valve is not
fully opened.
Not enough or
no hot water
The flow restrictor may be
open too much.
Hot water faucet is not
fully opened
Water piping is frozen
No electricity or water
supply is cut off.
Unit is not "ON".
The temperature may
be set too low
Mixing Valve malfunction
(if applicable).
Error code displayed on
remote control panel
The temperature may be
set too low.
Water not
hot enough.
The flow restrictor may be
open too much.
The gas valve is not fully
opened.
The temperature is set
too high
Water too hot
The flow restrictor may be
closed too much.
Water shutoff valve is
not fully opened.
Small amount of water
has been heated.
Water filter is clogged
Fan continues
This function is to
to rotate after
purge unburned gas
hot water faucet
10-15 seconds.
is closed.
Possible Cause
Check shutoff valve and open fully.
Adjust the flow restrictor in the (-) direction to
reduce the amount of water flow.
Open hot water faucet completely.
(The main burner goes off when incoming water
volume is inadequate.
Allow piping to thaw.
Check that proper power is being supplied
and/or water supply is adequate.
Turn the unit "ON" by the button on the remote
control.
Increase the temperature setting.
Check and replace if necessary.
See instructions for Error Code and if required,
contact a dealer for service.
Increase the temperature setting.
Adjust the flow restrictor in the (-) direction to
reduce the amount of water flow.
Check and open the gas valve fully.
Decrease the temperature setting.
Adjust the flow restrictor in the (+) direction to
increase the amount of water flow.
Check shutoff valve and open fully.
Allow more water to flow by adjusting the flow
restrictor in the (+) direction.
Clean the filter with a tooth brush.
Normal operation. There is no need to call for
service. Check for error code.
What To Do
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