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Resetting: Every malfunction [LED on controls is red] must be reset by turning off the fan and , then turning the fan back on again.
Or: using VU in the 'Settings' menu, then 'Write/reset'. Take note: The settings of the 'Settings' menu are passed on to the fan.
Replace controlsControls defective---AllGreen/red
VU settings are not
applied
Check whether anything is caught in the rotor, or the impeller
is running against the base or the cabling to the motor
Impeller sticksNothing in particularnoneNothing in particularAllGreen
Ventilator makes
excessive noise
replace the motor-impellerbearings defectiveNothing in particularnoneNothing in particularAllGreen
Ventilator makes
excessive noise
check impeller for pollution or replace the motor-impellerImpeller out of balanceNothing in particularnoneNothing in particularAllGreenVentilator vibrates
Replace controls--Temperature controls-AllRedDoes not rotate
Replace controls--
Internal
communications error
-AllRedDoes not rotate
Replace controlsControls defective-No connection230V~ between ‘L’ and the ‘N’AllOutDoes not rotate
Check operating switch connection end the electrical installationNo current-No connectionNo 230V~ between ‘L’ and the ‘N’AllOutDoes not rotate
Check (wiring to) motor-impeller and replace if necessary
Break in motor
controls wiring
Speed: 0 rev/min
Sensor: 1 Pa
Hall sensor15V= between ‘+15V’ and the ‘GND U4’ clampAllRedDoes not rotate
Check (wiring to) motor-impeller and replace if necessary
Break in motor
controls wiring
Speed: 0 rev/min
Sensor: 1 Pa
Motor blocked15V= between ‘+15V’ and the ‘GND U4’ clampAllRedDoes not rotate
Replace controlsControls defectiveSpeed: 0 rev/minMotor blockedNo 15V= between ‘+15V’ and the ‘GND U4’ clampAllRedDoes not rotate
Check release circuit, also between the MX
and the regulators, see secind tabel
Break in the
release circuit
Speed: 0 rev/minNoneNo 10 V= or more at release contactAllGreenDoes not rotate
Check wiring and the pressure transmitter,
if necessary replace them, see preceding page
(Wiring to) pressure
transmitter is defective
Sensor: [±] 300 PaNone18V = between ‘18V’ and the ‘GRD U3’ clamp of the controlsZMVGreen
Rotates constantly at
minimum speed
Replace controlsControls defectiveSensor: [±] 300 PaNoneNo 18V = between ‘18V’ and the ‘GRD U3’ clamp of the controlsZMVGreen
Rotates constantly at
minimum speed
Check pressure mesure point/hose blocked or lose
No pressure difference
is measured
Sensor: 1 PaNone
18V = between ‘18V’ and the ‘GRD U3’, clamp
0V = between ‘Eist’ and the ‘GRD U3’ clamp of the controls
ZMVGreen
Rotates constantly at
maximum speed
Check wiring and the pressure transmitter,
if necessary replace them, see preceding page
(Wiring to) pressure
transmitter is defective
Sensor: 1 PaNone
18V = between ‘18V’ and the ‘GRD U3’, clamp
0V = between ‘Eist’ and the ‘GRD U3’ clamp of the controls
ZMVGreen
Rotates constantly at
maximum speed
Replace controlsControls defectiveSensor: 1 PaNone0V = between ‘18V’ and the ‘GRD U3’ clamp of the controlsZMVGreen
Rotates constantly at
maximum speed
Check regulator end the wiring, if necessary replace them, see the
second tabel
(Wiring to) regulator is
broken
According to ‘settings’
low
None
if ‘10V’ and the ‘Esoll’, clamps are connected, ventilator does
speed up. Disconnect the ‘Esoll’ wire
External
regulators
Green
Rotates constantly at
low speed
Replace controlsControls defective
According to ‘settings’
low
None
if ‘10V’ and the ‘Esoll’, clamps are connected, ventilator does
not speed up. Disconnect the ‘Esoll’ wire.
External
regulators
Green
Rotates constantly at
low speed
Check regulator end the wiring, if necessary replace them
(Wiring to) regulator is
broken (GND U3)
According to ‘settings’
high
None
10 V = between ‘Esoll’ and the ‘GND U3’,
regulator is in the regulating position
External
regulators
Green
Rotates constantly at
high speed
Check for damaged parts end if necessary replace themImpeller sticks
Speed is lower than
required
Motor temperature
15V = between ‘15V’ and the ‘GND U4’ clamp
7V = between ‘TW PTC’ and the ‘GND U4’ clamp
AllRed
Rotates to slowly and
makes too much noise
Replace the motor/impeller combinatoinMotor runs with difficulty
Speed is lower than
required
Motor temperature
15V = between ‘15V’ and the ‘GND U4’ clamp
7V = between ‘TW PTC’ and the ‘GND U4’ clamp
AllRedRotates to slowly
ActionCause
Particulars in ‘Status”
menu
Display in menu
‘Malfunctions’
What do I mesurePossible for
LED on
controls
Complaint
english
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