6
x
Errors, malfunctions and messages
Daikin RoCon HP
Daikin Control
008.1420844 – 05/2014
Operating instructions
45
6
Errors, malfunctions and messages
CAUTION!
Electrostatic charges can lead to voltage arcing that
can destroy the electronic components.
●
Secure potential equalisation before touching
electronic parts (e.g. by touching an earthed
metallic part).
6.1
Recognising errors, correcting
malfunctions
Electronic control of the Daikin Altherma EHS(X/H):
– Signals an error by means of the background of the display
lighting up red and shows an error code in the display
(see section 6.3).
– Shows information messages regarding the operating status
(not signalled by red background lighting).
An integrated Protocol saves up to 15 error-related or other infor-
mation messages regarding the operating status that last oc-
curred.
Depending on the operating mode, messages are also forwarded
to connected room stations or room thermostats.
6.1.1 Current fault display
1
2
3
E 75
Inside Unit:
Address:
Boiler
0
1
Error message as a code (see section 6.3)
2
Location information (equipment) of the detected fault
3
Bus address of the unit causing the fault
Fig. 6-1
Displays an active error message (controller fault)
1
2
3
4
Inside Unit:
Address:
Heating Module
0
E 9001
Fault T-return
1
Error message as a code (see section 6.3)
2
Fault message as plain language (see section 6.3)
3
Location information (equipment) of the detected fault
4
Bus address of the unit causing the fault
Fig. 6-2
Display of a current error message (heat pump fault)
6.1.2 Read Protocol
The Protocol can be read in the
"Special Level"
(see fig. 6-3).
The last received message is in the first position. All other pre-
vious messages are then pushed backwards by one place when
a new entry is made. The 15th message will be deleted any time
a new message is received.
E75
E75
E75
Special Level
Manual Operation
FA failure
Protocol
Special Level
FA failure
Protocol
Delete message
Inside Unit:
Address:
Boiler
0
Read Protocol
Fig. 6-3
Reading the protocol
6.1.3 Troubleshooting
●
Detecting and remedying the cause of the malfunction.
– Contactor triggered:
Nothing shown on the display in the controller. Ascertain
cause of triggering the contactor and remedy fault. Start up
system again.
Once the cause has been remedied, the system will
resume operations as normal.
– Contactor not triggered:
a) No fault codes are shown but the system is not working
properly. Troubleshooting and eliminating faults
(see section 6.3).
Once the cause has been eliminated, the system contin-
ues to work normally.
b) Fault codes are displayed as long as the fault conditions
are present. Troubleshooting and eliminating faults
(see section 6.3).
With specific faults, the heat demand must be cancelled
(activate "Standby" operating mode).
If the fault message is still displayed after the cause of the
fault has been corrected and the heat demand has been
cancelled, the system must be disconnected from the
power supply for at least 10 s in order to unlock it.
Once the cause has been eliminated, the system contin-
ues to work normally.
