F
AULTS
C
OMFORT
C
IRCLE
46
7
. . Faults
7.1
Safety instructions
Danger:
d
Work on the unit’s interior shall be performed by
qualified technical staff only.
Danger:
d
Before opening the unit, follow the safety instruc-
tions in section 1.4.
7.2
Resolving simple problems
If you suspect a fault, first try to resolve the problem using
table 7-1. You need not be an expert for this.
7.3
Fault-finding by the installer
If table 7-1 does not provide the solution to the problem,
table 7-2 can be used to investigate the fault further.
If a fault code is displayed (see section 7.4), table 7-3 can be
used to resolve the fault.
Contact the supplier if tables 7-2 and 7-3 do not provide the
solution either.
Caution:
c
First run through table 7-1 before considering the actions
in table 7-2.
Danger:
d
The actions in tables 7-2 and 7-3 may be per-
formed by competent staff only.
