26
Troubleshooting-2
The water is cold when only a
single fixture is open.
• The unit will not heat the water if the flow rate is less than
2.5 litre per minute.
Open the fixture more or open other fixtures so that a greater flow
passes through the unit, and the unit should begin heating again.
Amount of Hot Water
The amount of hot water at a
certain fixture is not constant.
• When hot water is demanded at other fixtures, the amount
available may be reduced. The maximum flow available from
this unit is 32 litre per minute at a 25
°
C temperature rise.
• 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.
• There are some types of hot water taps that discharges large
volumes of hot water at first but stabilize after 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.
Amount of hot water available
has decreased over time.
• Is the water filter clogged? ( P24)
• If the supply water is hard and has not been treated, scale
can build-up in the water heater and decrease the
maximum amount of hot water available. To prevent scale
from forming in the water heater, a water softener or scale
inhibitor is recommended.
(Continued)
The temperature does not increase
to set hot water temperature.
• If the hot water (water) of previous day remains, the
temperature goes down from set temperature by just that much.
Setting temperature cannot rise.
•
Is the maximum temperature setting appropriate? ( P18 - 19)
Remote controller
• In order to prevent the screen from burn-in, after the remote
controller has not been used for about 10 minutes, the
screen display changes, and continuously scrolls
sideways. ( P10,18-19)
The display on the remote
controller moves continuously.
The power lamp is not lit. • Has the power been cut?
• Is the power connected properly?
Temperature setting cannot be
increased.
• Has the maximum temperature setting been changed?
( P18-19)
• 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. ( P12)
Clock shows “0:00”.
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