Master DH 25 Owner's Manual page 6

OBSERVED FAULT, POSSIBLE CAUSES AND REMEDIES
6
OBSERVED FAULT, POSSIBLE CAUSES AND REMEDIES
PROBLEM
The unit won't start
The ventilator and compressor are
working but neither water nor ice form on
the walls of the evaporator
The unit stops and the pilot lamp (c)
comes on
The unit stops and the control lamp (b)
comes on (the condenser's ribbed
battery has over heated)
The unit stops and the control lamp (b)
flashes
GB
CAUSE
1 No electricity
2 Humidistat not set correctly
3 Water tank full (pilot light "c"on)
1 Air flow not sufficient
2 Room temperature and relative humidity
level too low.
3 Refrigeration circuit not working correctly
1 Water tank full
1 Air flow obstructed
2 Air temperature above 40 °C
3 Fan motor broken
4 Refrigeration circuit not working correctly
1 Temperature lower than 3°C
REMEDY
1a Check that the the switch is working and that it
is ON
1b Check mains caracteristics (220V, 1 ~, 50 Hz)
2 Set the humidistat at a relative humidity level
which is lower than the room humidity level
3 Empty the water tank.
1a Check that nothing is blocking intake and
expulsion of air
1b Check that there aren't any deposits or
incrustation on the filter or on the ribbed batteries
of the condenser or of the evaporator
2 Check that the temperature is between 0° and
40° and that relative humidity is between 40%
3 Call an Authorised Service Technician
1 Empty the water tank
1 Remove obstacles to air flow and start unit
again
2 Only use unit when temperature drops below
40°C
3 Call an Authorized Service Technician
4 Call an Authorized Service Technician
1 Move the dehumidifier in a place where
temperature is 3°C