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The display shows
[Commissioning error
1 / motor fault]
[Back pressure]
[NRV closed]
(Display although there
is no back flow occur‐
ring)
1)
The components integrated into the cover cannot be replaced individually.
3.6
Care and maintenance
3.6.1
Inspection
Grundfix Plus Control backflow trap type 3
Possible cause
This error is displayed if
a defect is recognised
during a self-test.
Motor / Mechanism
n
defective
Motor-powered flap
n
blocked
Pressure switch defec‐
tive
To ensure safe operation, a monthly inspection must be carried out by a
professional, see
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.
Troubleshooting by
Operators
Operators
Ä 'Regulations from section: Inspection' on page 6.
Handling
Troubleshooting meas‐
ures
The motor is turning
n
and trying to close
the motor-powered
flap but the error
message continues:
Open and clean the
cover, see
Ä Chapter 3.6.2
'Maintenance'
on page 34. If the
error message
remains, replace
cover.
Positive opening with
T3 button – keep
pressed down for
5 seconds.
Replace cover.
33
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