COMMISSIONING
167
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Trouble shooting
If operates not properly or it does not start operation, please check following list.
CAUTION
!
Turn off the power before proceeding troubleshooting.
NOTE
• Emergency mode operation is activated by pressing OK button on popup-window!
• After power reset, Emergency mode does NOT automatically resume!
1) If more than one trouble occurs (“Duplicated trouble”), the trouble with higher priority defines
the consequences (whether Emergency operation is possible or not).
2) Operation possible without optional function that has trouble. For instance, when DHW
sensor is broken (CH08), hot water heating is not available.
3) Heating operation only. Not possible to use Cooling function.
Critical trouble /
Error
Heavy trouble Slight trouble Option trouble
Description
Problem which
can stop system
operation, and
can be resumed
only after
certificated
professional's
check.
Compressor cycle
trouble.
Emergency mode
operation is
performed by
optional electric
heater.
In most case,
this trouble is
concerned with
sensor
problems.
A problem is
found for Option
operation such
as water tank
heating.
Priority
1)
1234
Availability of
Emergency
mode
Heat pump
cycle
XXOO
2)
Backup
heater
XO
3)
OO
2)
Related error codes
03,09,14,15,16,
20,52,232
02,05,06,
22,23,24,26,27,29,
32,34,35,40,41,43,
44,45,46,48,53,57,
60,61,62,114,115
01,17,18,19,
21,54,231
08,13
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