36
DOK4SVxxDEN · FD 9912
www.glendimplex.de
English
Domestic ventilation unit M Flex Air (Plus)
11 Faults
Filter, status and fault signals are displayed with a plain text
message on the control panel of the ventilation unit.
If error signals are active, the backlighting of the display flashes.
!!
CAUTION!
Repairs must be carried out by a qualified engineer. Only use
genuine spare parts from the manufacturer.
Code
Display
Status
Fault
Cause
Action
-
None (display off)
Off
Display is blank
Unit is not running
No power supply
Check power supply
-
None (display off)
In operation Display is blank
Cable to the display or display
board faulty.
Check cable, replace display board
-
Filter!
In operation Filter soiled
Level of soiling reached
Check/replace filter,
Filter reset
-
Exh.air>Sup.air!
In operation
Exhaust air volume flow greater
than supply air volume flow,
risk of negative pressure *
Exhaust air fan speed
350 rpm higher than supply fan
speed
Check filter, replace if necessary,
Regulate and adjust outside air/
supply air and exhaust air/extract
air duct system volume flows /
pressure drops
-
Cooling prevent.
Off
Switch off if residential unit
unheated
Exhaust air temperature < +8°C,
switch-off for frost protection in
the residential unit
Automatic start-up at room tem-
perature > +9°C
-
External OFF
Off
Switch-off
via external signal
External on/off signal,
external smoke detector,
RM contacts
Automatic
E00
E00:Unit config.
Off
Unit will not start up
Unit configuration not entered
Enter unit configuration, for U/V
code see type plate
E01
E01:air-balance
Off
Exhaust air volume flow greater
than supply air volume flow,
risk of negative pressure *
Exhaust air fan speed
500 rpm higher than supply fan
speed
Check filter, replace if necessary,
Regulate and adjust outside air/
supply air and exhaust air/extract
air duct system volume flows /
pressure drops
E03
E03:int.error
Off
Internal communication error
Microprocessor or CPU board
faulty
Replace CPU board
E05
E05:ext.overload
Off
Supply voltage
broken down,
24V DC overloaded
Short-circuit
Inform after-sales service
E09
E09:Balance
Off
Input error volume flow: Exhaust
air greater than supply air
Volume flow parameter error
Volume flow parameter
Correct exhaust air
E11
E11:Fan1 start
Off
Outside air / supply air fan VM1
does not start *
No fan speed for 30 s, cable break,
fan blocked or faulty, no data com-
munication
Check / replace connection cable
and fan VM1, repeat fan address-
ing
E12
E12: Fan2 start
Off
Exhaust air / extract air fan VM2
does not start*
No fan speed for 30 s, cable break,
fan blocked or faulty, no data com-
munication
Check / replace connection cable
and fan VM2, repeat fan address-
ing
E13
E13: Fan1 high
Off
Outside air / supply air fan VM1
speed too high *
Air resistance in the outside air /
supply air duct system too high
Check outside air / supply air duct
system,
check/replace filter
E14
E14: Fan2 high
Off
Exhaust air / extract air fan VM2
speed too high *
Air resistance in the exhaust air /
extract air duct system too high
Check the exhaust air/extract air
duct,
check/replace filter
E15
E15: Fan1 low
Off
Outside air / supply air fan VM1
speed too low *
Fan impeller mechanically dam-
aged
Check fan VM1
E16
E16: Fan2 low
Off
Exhaust air / extract air fan VM2
speed too low *
Fan impeller mechanically dam-
aged
Check fan VM2
E17
E17: Fan1 stop
Off
Outside air / supply air fan VM1
not running *
Speed = 0, cable break, fan
blocked or faulty, no data commu-
nication
Check / replace connection cable
and fan VM1, repeat fan address-
ing
E18
E18: Fan2 stop
Off
Exhaust air / extract air fan VM2
not running *
Speed = 0, cable break, fan
blocked or faulty, no data commu-
nication
Check / replace connection cable
and fan VM2, repeat fan address-
ing
E21
E21: Sensor1
Off
Sensor 1 outside air
Sensor or cable faulty
Check / replace outside air sensor
E22
E22: Sensor2
Off
Sensor 2 supply air
Sensor or cable faulty
Check / replace supply air sensor
E23
E23: Sensor3
Off
Sensor 3 exhaust air
Sensor or cable faulty
Check / replace exhaust air sensor
Summary of Contents for 3VSHCE
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