Dehumidifier M KD-series
5 Troubles hooting
Use the table below to localise and co
rrect problems or errors:
Problem Possible Cause Action
■ Dehumidifier will not start
■ Display not switched on
Plug not in mains socket Check dehumidifier is connecte
d
to the mains. Check the mains
socket if necessary by connec
ting
another electrical applianc
e
The hygrostat has m easured
air humidity lower than th
eset
point, and switched off t
osave
power
Reduce hygrostat set point
,or
switch to manual operatio
n. See
the section on Internal h
ygrostat
operation, chapter.3.3
.
■ Dehumidifier will not start
■ Green light not on
■ HYG STOP shown on
display
Room temperature is be
low
3°Candthedehumidifi
er
is automatically pu
toutof
operation
Wait for the te mperatu
re to rise
above 3 °C
■ Yellow light on display shows
Full
Container full or pump
(accessory) blocked
Empty water container or clear
pump blockage
■ Dehumidifier running
■ Green light on
■ SERVICE flashing on
display
Service interval set has expired Service the product as specified
in the section on serv ice counter
expir y
■ Dehumidifier running
■ When RH% activates, the
display shows SENSOR
FAIL
RH% sensor defective Replace RH% sensor
■ kWh and hours without
power not displahyed
Memory battery flat Replace battery. See chapter 3.8
NOTE! •
Ifthemachineisnotworkingproperly, switchoffimmediately!
•Befo
restartingtroubleshooting,waitforone minute,astheelectronicscouldhave cutoff themachineforsafety
reaso
nsy
If the dehumidifier will not restart, contact Munters. This also applies if the machine runs without
condensing any water. There may be a fault on the cooling circuit which will require a service technician
19 Troubleshooting 190TEN-1071-C1304