42
Troubleshooting-2
The power ON/OFF indicator does
not light up.
• Has there been a power failure?
• Is the power connected properly?
The clock display shows
"- : - -".
• If the time is not displayed on the clock, either a
power failure has occured or power was disconnected
resulting in the display showing "- : - -". (
p.23)
The water temperature changes
after a power failure or when the
power is disconnected.
• The temperature setting and the flow meter alarm
setting may both need to be reset after a power
outage.
The flow meter alarm does not
sound or it sounds before the
bathtub has been filled to the set
amount.
• The flow meter alarm is set to sound when hot water
is continuously discharged for the set volume of water.
If hot water is used for other fixtures while filling the
bath tub, the alarm will sound before the tub is full.
• If mixing valves are used, or if cold water is mixed with
hot water at the fixture, the tub will fill more than the
setting of the flow meter alarm.
The setting cannot be changed when
a button is pressed.
• The remote controller is locked.
While the remote controller is locked these buttons
cannot be used. (
p.22)
The plastic on the surface or buttons
of the remote controller has torn,
peeled, or air bubbles inside.
• The surface of the remote controller is affixed with a
protective sheet (to prevent surface scratching, etc.) at
time of shipment. This sheet can be removed or left as it
is. When leaving the protective sheet on, areas frequently
touched may tear or peel. However, the remote controller
will not malfunction from water entering such torn or
peeled areas. To restore the appearance of the remote
controller surface, simply remove the protective sheet.
[For recirculation systems]
Flame symbol < > lights up or goes out.
• During recirculation operation, the water heater will
turn on and off to keep the hot water pipes up to
temperature.
The fan can be heard after
operation is stopped.
A motor can be heard when turning
the unit on or off, when opening
or closing a fixture, or after the unit
has been running for a while.
• These noises indicate the proper operation of devices
which are designed to let the unit reignite more quickly,
and ensure the water temperature is stable.
The fan can be heard when it is very
cold outside.
• The fan may run to prevent freezing.
Remote Controller
Sounds
(Continued)
