
The display shows
Possible cause
Troubleshooting by
Troubleshooting meas‐
ures
[Commissioning error
1 / motor fault]
This error is displayed if
a defect is recognised
during a self-test.
n
Motor / Mechanism
defective
n
Motor-powered flap
blocked
n
The motor is turning
and trying to close
the motor-powered
flap but the error
message continues:
Open and clean the
cover, see
error message
remains, replace
cover.
Operators
[Back pressure]
[NRV closed]
(Display although there
is no back flow occur‐
ring)
Pressure switch defec‐
tive
Operators
Positive opening with
T3 button – keep
pressed down for
5 seconds.
Replace cover.
1)
The components integrated into the cover cannot be replaced individually.
3.6
Care and maintenance
3.6.1
Inspection
To ensure safe operation, a monthly inspection must be carried out by a
‘Regulations from section: Inspection’ on page 6
.
Check the functions of the Grundfix Plus-Control:
▶
Close and re-open the motor-powered flap by pressing the
button T2.
▶
Actuate the emergency lock and check it for smooth function.
Handling
Grundfix Plus Control backflow trap type 3
33