Fault diagnosis and rectification
Installation instructions geoTHERM 0020051574_04
97
11
10.4
Carrying out a restart and trial operation
a
Danger:
Risk of injury due to hot and cold compo-
nents.
The heat pump may only be put into opera-
tion after all the cladding sections have
been fitted.
>
Before restating, refit any heat pump
panel parts which may have been
removed, as described in
(
¬
Ch.
7.9
).
>
Start the heat pump.
>
Check the heat pump for faultless operation.
11
Fault diagnosis and rectification
a
Danger:
Risk of damage and personal injury due
to incorrect fault diagnosis and improper
rectification.
Operations for fault diagnosis and fault rec-
tification must only be performed by an
approved heating engineer.
>
Carry out the operations described in a
professional manner.
e
Danger:
Risk of electric shock!
>
Always switch off all power supplies
before starting work on the heat pump.
>
Make sure that they are secured against
inadvertent switching on again.
11.1 Fault
types
To call up the Error History, see
¬ operating instructions
.
Five types of fault may occur, of which the first four are
indicated by fault codes in the display:
– Faults on
components
which are connected via
eBUS
.
–
Faults with a consequent temporary warning message
The heat pump remains in operation and is not switched
off.
–
Faults with consequent temporary switch-off
The heat pump is temporarily switched off and starts
running again of its own accord. The fault is displayed
and disappears automatically when the cause of the fault
is no longer present or has been eliminated.
–
Faults with consequent permanent switch-off
The heat pump is permanently switched off. The heat
pump can be started again after the cause of the fault
has been rectified and the fault reset in the Error History
(
Menu I 1
) (
¬
Tab.
9.8
).
– In addition,
other types of fault/malfunction
may occur
in the heat pump or heating system.
