Status Duty-Cycle
both sensors o.k. 7 sec. ON
air-sensor missing/defective 9 sec. ON
evaporator-sensor missing/defective 12 sec. ON
both sensors missing/defective 15 sec. ON
If the air-sensor fails during normal operation, the software shuts down the
cooling unit in steps to 0.
In refrigerators without evaporator-sensor or if the evaporator-sensor is
defective the leakage test is not carried out.Then the new electronics works
like the previous one without leakage detection.
Automatic Defrost Function
The 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 15 hours for greenline models
and 39 hours for the new face lift models (RH4XX). For all models the
defrosting takes 2 hours. Then the refrigerator works 22 hours and
afterwards defrosts 2 hours. Therfore the starting of the refrigerators
determines the time of defrosting.
For example: Starting at 7.00h = first defrosting 22.00h - 24.00h (for facelift
models 22.00h next day)
4
3.0
S
TT
TT TT
S
(39h)
X4, connection heating element
Connections evaporator-sensor = Y3, Y4
Connections air-sensor = Y1, Y2
Do not change the
connections of the
evaporator-sensor and
the air-sensor !
Air-sensor
Evaporator-sensor
N
X1,X2,X3 = N
X5,X6 = L
In service case please pull sensor off
electrics and check by means of
measurement.
(ch. 15.0 Troubleshooting)
Ambient temperature°C Resistance (kW)
0° 32,51 +/-2%
10° 19,86 +/-2%
15° 15,68 +/-2%
20° 12,48 +/-2%
To Next Page
Loading...
Need help?
General
