andrews WH42 Owner's Manual page 28

Troubleshooting-3
Please check the failure display on the remote controller or the
In the event of a failure, the cause is
notified by a blinking failure display.
Please resolve the problem in
accordance with the table below.
Failure display
11
F11
99
F99
[Combustion lamp is lit. (
In the event of a failure, you are notified by the combustion lamp blinking at the front of the unit.
Please resolve the problem in accordance with the table below.
Combustion lamp
Continuously blinking
Lit
Unlit
26
combustion lamp on the main body.
Details of Failure
Fault occurs with the ignition
switch at the hot water supply
side.
Fault occurs with combustion of
the unit.
P7)]
Details of Failure
• Fault occurs with the unit.
Contact our Technical Department if:
• Any other error code appears.
• An error code is indicated again after the above actions were followed.
• There are any other questions.
Failure display blinks
(This display is an example.)
Remedy
Turn the power "Off", make sure that the gas valve
is open and that the gas meter has not shut off the
gas, and if this is the problem, please rectify it.
Then, turn the power "On", and when the hot water
tap is turned on, it is back to normal if nothing is
displayed.
Please contact Andrews Water Heaters.
Remedy
Make sure that the gas valve is open. Close
the hot water tap, then reopen it, and it is
back to normal if the combustion lamp is no
longer lit.