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Troubleshooting-2
Remote controller
Amount of hot water
The pressure at a certain
fixture is not constant.
• When hot water is demanded at other fixtures, the
amount available may be reduced.
• Pressure fluctuations and other plumbing conditions can
cause the temperature and pressure at a fixture to be
unstable, but it should stabilize after a short time.
• To keep the temperature stable, the heater limits the
amount of water that can flow through it to a small
amount initially, but the amount increases over time.
• In order to prevent the screen from burning out, after the
remote controller has not been used for about 10 minutes,
the screen display changes, and continuously scrolls
sideways. ( P7,20-21)
The display on the remote
controller moves continuously.
The power lamp is not lit. • Has the power been cut?
Temperature setting cannot be
increased.
• Has the maximum temperature setting been changed?
( P20-21)
• If the power is disconnected for any reason, when the
power is reconnected, the clock on the display screen
shows “0:00”, indicating that it needs to be reset. ( P10)
• If using the remote controller RCS3211, the hot water
temperature display reverts to the factory setting, so please
check it.
Clock shows “0:00”.
After the power is cut, the hot
water supply temperature is
different.
The symbol is blinking.
The combustion indicator / the
burner on indicator turns on and off.
• During instant hot water operation, the combustion heater
turns on and off intermittently. This is normal.
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