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M.FDK54-05 UK Manual 26/09/2017
4. UNIT ALARMS
PROBLEM
PROBABLE CAUSE and CORRECTIVE ACTION
+ “Lo t”
It occurs for two possible reasons: the environment temperature is too low or
the defrost cycles are not able to melt the ice in the battery. To reset put the
dehumidifier above 50°F, if not reset put the dehumidifier off with POWER
button and unplug the machine.
+ “LoPt”
Possible lack of gas in the circuit. The alarm resets automatically after 210
seconds.
If the alarm does not reset simultaneously press and SET HOURS + for 10
seconds. If the problem occurs again, call for service.
+ “HI t”
Combination of temperature and humidity too high.
The alarm resets automatically when the temperature drops.
“Prob”
Malfunction humidostat. In any case, the machine continues to operate. Contact
the service to replace the humidistat.
+ “Pro1” o
“Pro2” o “Pro3”
Malfunction of one of the three temperature probes. The dehumidifier goes into
stand-by mode. Contact the service to replace the probes.
5. FIRST STARTING OF MACHINE
Before starting the dehumidifier, make sure that the machine has been standing in vertical position for at-
least5hours. If one fails to observe this procedure, irreparable damage may be caused
to
the compressor.
Then one can proceed and connect the dehumidifier plug to a 115 V - one phase power socket.
If the dehumidifiers is still off, set a lower value of humidity on the control panel .
After about 3 minutes the dehumidifier
will start dehumidifying.
6. PERIODICAL MAINTENANCE
Air Filter Cleaning
The only required periodical maintenance is the cleaning of the filter
once every month,
or more often if
the environment is very dusty or the dehumidifier is working for many hours every day.
The cleaning must be done by placing the filter under a water jet with the drilled panel facing the floor so
that the water jet may push the filter towards the drilled panel.
After a few years running, may be necessary to make a cleaning of the warm heat exchanger (condenser)
by using compressed air. This operation must be done by a specialized technician. This cleaning will
improve the performances and the long life of the machine.
Note: You can require spare filters from your dealer's service.