23
CARING FOR YOUR WATER HEATER
Vacation and Extended Shutdown
WARNING: Failure to drain the water
heater can cause serious personal injury from scalding
and/or product damage.
If the water heater is to remain idle for an extended
period of time, the power and water to the heater
should be turned off.
The water heater and piping should be drained if they
might be subjected to freezing temperatures. See
“Freeze Protection” section on page 22.
After an extended shutdown, the water heater’s
operation and controls should be checked by a
qualified service technician.
Troubleshooting Chart
The information in the following troubleshooting chart
may help you diagnose and/or fix a problem you may be
experiencing. Please review this chart before calling
for service assistance.
DANGER: Shock Hazard – Make certain
power to the water heater is OFF before removing
protective cover for any reason. Electric shock will
cause death or serious personal injury.
WARNING: For Your Safety, DO NOT
attempt repair of electrical wiring, gas piping
remote control, burners, vent connectors, or other
safety devices. Refer repairs to a qualified service
technician.
Problem Possible Cause Solution
Not enough or no hot water.
1. Unit is not ON. 1. Turn on the unit by pressing the
POWER ON/OFF button.
2. Water shut-off valve is not completely
opened.
2. Check shut-off valve and open com-
pletely.
3. Hot water faucet is not completely
opened.
3. Open hot water faucet completely.
(The main burner goes off when incoming
water volume is inadequate.)
4. Water piping is frozen. 4. Allow piping to thaw.
5. Electrical power is disconnected or
water supply is shut off.
5a. Plug in the power cord or reconnect
the power supply at the circuit breaker
box.
5b. Completely open the water supply valve.
(Inadequate water volume will cause the
main burner to turn off.)
6. The temperature may be set too low. 6. Increase the temperature setting.
7. Mixing valve malfunctions (if
applicable).
7. Check and replace the mixing valve.
8. Error code displayed on the remote
control.
8. See “Service Error Code Chart” on
page 26. If required, contact a
qualified service technician.
9. Not enough water demand. 9. Increase the hot water flow at the
faucet.
10. Water filter is clogged or dirty. 10. Clean the water filter. (See page 17.)
11. Fixture aerator is clogged or dirty. 11. Clean the aerator.
12. Scale buildup in the heat exchanger. 12. Check for error code. If required,
contact a qualified service technician.
13. Hot and cold water lines reversed. 13. Reverse the water lines.
Care Instructions
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