English
Troubleshooting
If the error code remains shown:
• Close the hot water faucet.
• Take the proper action shown below and
attempt operation of the water heater
again.
If the error code is still shown:
•
Turn off the hot water faucet.
• Take note of the error code displayed and
call the customer service assistance number
in the “If You Need Service” section.
When an error code is displayed:
• Close the hot water faucet.
• Wait for 5 minutes before turning the unit
on again.
• Open the hot water faucet.
NOTICE: If an error code other than those listed
below is displayed, immediately turn off the hot
water faucet, take note of the error code, turn
off the switch on the remote control and call the
customer assistance number.
CAUTION: For your safety DO NOT attempt repair of 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.
Error Code Guide
Error
Code
Error Description
Possible Cause
What To Do
E0
Hot water sensor
failure
Junction port loose,
Short circuit
Call for Service
E1
Ignition system failure
The gas valve is not opened
or fully opened, Water
shut-off valve is not open,
Junction port loose
Check and open gas fully,
Check and open water valve,
Call for Service
E2
There is flame when
no
water coming in
Electric circuit problem
Call for Service
E3
Over-heating
protection
Dry Combustion, Problem of
over heating controller
Call for Service
E4
Cold water
temperature sensor
problem with sensor,
problem with sensor’s plug
or socket, none of the above
replace the sensor, fix it,
replace the computer board
E5
Pressure Switch
Motor problem, Voltage of
power supply is too low
Call for Service
E6
Over-heating
Gas pressure is too high,
Water shutoff valve is not
fully opened, The
temperature is set too low
Check shut-off valve and
open fully, Increase
temperature setting
E7
solenoid valve
open circuit of the valve,
short circuit of the valve,
none of the above
connect the valve, replace the
valve, replace the computer
board
E8
vent pipe block
vent pipe is blocked
clean the pipe
