3 Disturbances in comfort
Troubleshooting
NOTE
Work behind covers secured by screws may only be carried out by, or
under the supervision of, a qualified installation engineer.
NOTE
As F2120 can be connected to a large number of external units, these
should also be checked.
NOTE
If the operating disturbance cannot be rectified by means of this chapter,
an installation engineer should be called.
NOTE
In the event of action to rectify malfunctions that require work within
screwed hatches the incoming electricity must isolated at the safety
switch.
The following tips can be used to rectify comfort disruption:
Basic actions
Start by checking the following possible fault sources:
■
That the heat pump is running or that the supply cable to F2120 is con-
nected.
■
Group and main fuses of the accommodation.
■
The property's earth circuit breaker.
■
F2120 automatic protection (FB1). (Only if KVR 10 is installed.)
NIBE™ F2120Chapter 3 | Disturbances in comfort20
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