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When ambient temperature does not meet the heat
pump operational requirement (outside the range -7~43℃ ) for
over 20 hours. "LA" will display at TEMP-SET screen and
ALARM indicator flashes simultaneously to alarm that the
temperature is not suitable for heat pump performance, only
E-heater mode could be selected at such circumstance.
Please switch to E-heater mode manually to ensure there
is adequate hot water to be supplied. Note that if change of
mode is done manually, the desired mode will not return
automatically upon unit returning to normal working process.
Desired mode must be changed back manually.
The light will illuminate in error
ALARM
Warning Code of disagree with
heat pump mode
Temp.Set
Trouble Shooting
If an error occurs, the buzzer will sound 3 times every minute
and the ALARM indicator will flash fast. Hold CANCEL for 3
seconds to stop the buzzer however the light will keep
illuminating.
Fig.8-18
Fig.8-19
The light illuminates in error
Hold CANCEL key to stop the buzzer.
CANCEL
The error code from the screen of TEMP-SET will display when
a malfunction happens, the system will display error code after
one minute, and when the key is pressed again and the screen
will display set temperature.
Display the error code
TEMP-SET
When a malfunction happens in economy mode, the system
may still be used when switched to E-heater mode. However, in
this case, the system will not reach the expected efficiency.
Error Code Explanation (See t able.8-21 )
WARNING
The covers of the electric element should not be
opened unless by a qualified electrician in order
to prevent electric shock and other dangers.
ALARM
Fig.8-20
Fig.8-21
Installation & Owner's Manual
17
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