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7. TROUBLE SHOOTING
Our refrigerators/freezers are designed and produced for a long life and trouble
free function. Alarm messages are displayed flashing and indicated by means of
an acoustic signal. To stop the alarm signal see page 17. Should nevertheless a
malfunction occur, please check as follow:
Trouble/Error message
Measures
Display dark
- Check electrical current supply
(fuse, socket)
Alarm HI
Requested temperature is not
reached
- check set rated value
- doors closed properly?
- goods stored properly?
(see chapter 4)
- defrost iced evaporator (remove
goods and switch off device until
evaporator is ice-free)
Alarm HO
Device too cold
- check set rated value
- switch off device, pull mains plug
and switch on again after approx.
2 minutes
Alarm DO
- close doors
Alarm HP
Malfunction of high pressure
–
compressor protection function
- switch off device, clean condenser
- ambient temp. to high (max. 43
C)
- fan motor of condenser not running
- is a proper ventilation and breathing
of the installation compartment
given? (See chapter 2.1) The
installation compartment must not
be covered
Alarm E1
Room probe defective
- probe circuit broken
- probe circuit of controller not fixed
- probe defective
Alarm E2
Evaporator probe defect
- probe circuit broken
- probe circuit of controller not fixed
- probe defective
Water in cold room
- check if device is placed on even
ground
- clean defrost water tray and
defrost water drain
- check inline of drain pipe
Summary of Contents for AHKMN Series
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