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Automatic Defrost Function

The HiPro electronic also regulates the automatic defrosting of the

refrigerator. When the plug has been stuck to the socket the running time of

the refrigerator up to the first defrosting is 39 hours For all

models the defrosting takes 2 hours. Then the refrigerator works 22

hours and afterwards defrosts 2 hours.

Therefor the starting of the refrigerators determines the time of defrosting.

For example: Starting at 7.00h = first defrosting 22.00h (next day).

Cooling unit check

In order to carry out the check of the cooling unit, e.g. a leak within the

cooling circle, the temperature difference at the evaporator sensor is

determined every 40 minutes. If, after finishing the defrost phase the fridge

does not reach a cool-down of 4K within 40 min, a system error exists,

and the fridge is switched off.

The system error is saved in the EEPROM and indicated by permanent

flashing of the indoor lighting as well as the REDDOT_LED with 8 Hz.

System errors are:

- Leak / clogging of the cooling unit

- the HiPro is not balanced

- heating element defective

In service-case the cooling unit is not changeable. You have to

install a complete new HiPro miniBar!

Heating Shell

After max. 5 seconds, the heating element is driven with supply voltage and

works for 20 seconds. This cycle is repeated for 45 minutes. After this the

electronic controls the prefixed temperature.

Please see also point 5.0, page 5

19.4

39h

19.5

19.6

Dometic RH330LD User Manual

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