Troubleshooting Table - Vallox TSK Multi 80 MC R Manual

Low-energy ventilation unit with heat recovery
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TROUBLESHOOTING TABLE

If the ventilation unit is affected by any of the errors listed in the table, the unit will report the error through the error
relay, signal light, and circuit board LEDS. The number of flashes indicates the nature of the error.
The error relay can be connected to remote monitoring.
NOTE! When remote monitoring is used, the signal light of the control panel cannot be turned on.
TROUBLESHOOTING
Flashing
Problem
LED
1
NTC sensor of the supply air from the cell
is faulty
2
NTC sensor of the extract air is faulty
3
NTC sensor of the extract air is faulty
4
NTC sensor of the exhaust air is faulty
5
NTC sensor of the outdoor air is faulty
6
The supply air fan has stopped.
7
The extract air fan has stopped.
8
EEPROM is faulty
BEFORE BEGINNING
MAINTENANCE WORK
The safety switch (S) automatically turns off the power
when the door of the Vallox TSK Multi 50/80 MC ventilation
unit is opened. Always disconnect the power plug before
starting the Vallox TSK Multi 50/80 MC ventilation unit
maintenance.
FILTERS
When the maintenance reminder becomes activated,
check the cleanliness of the filters and replace them if
required. The Vallox ventilation unit has three air filters: 
Class G4 coarse filter (A) filters insects, heavy pollen
and other relatively large foreign objects out of the
outdoor air.
Class F7 fine filter (B) filters microscopic pollen and
dust particles out of the supply air.
Class G4 coarse filter (C) filters the extract air and
keeps the heat recovery cell clean.
Using original Vallox filters ensures the best operation
of the ventilation unit and the best filtering results. The
filter replacement interval depends on the ambient dust
concentration. It is recommended that the filters be
replaced every spring and autumn, or at the very least
once a year.
Correction
Check the sensor and the wires, replace as required
Check the sensor and the wires, replace as required
Check the sensor and the wires, replace as required
Check the sensor and the wires, replace as required
Check the sensor and the wires, replace as required
Check the wiring of the fan, replace the fan as required
Check the wiring of the fan, replace the fan as required
Replace the circuit board
R model in the figures.
In the L model, the parts are mirrored
C
5
S
A
B
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