Electrolux 593804600 service manual Lambda probe calibration only for lev. a ovens

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AOS_Q OVENS – Service manual

(593804600 - ENG)

A B C

Fig. 15

A B

Fig. 14

4 Lambda probe calibration (only for lev. A ovens)

With this procedure we have to find the 0% point of humidity.

The procedure is done in a way similar to the by-pass calibration. During the procedure, the word “CAL” appears on the time display. These are the steps:

1)Set an hot air cycle, 160 °C, time over 15 minutes, open flap;

2)Start the cycle pressing together the left and middle service buttons (A&B)and the START button. The oven will give a long beep;

3)Wait around 10-15 minutes to dry completely the cavity;

4)Close the flap and wait around 20 seconds to stabilize the humidity inside the cavity;

5)To store the value press together the 3 service buttons (A&B&C). The oven will confirm with a long beep. The value is stored in the parameter OLbd. A correct value is in the range of -5 to -75.

6)Stop the cycle with the START button.

This calibration is very important and has to be done with care. If the dry point (0% of humidity) is not correctly stored, the reading of the relative humidity could be overestimated or underestimated.

IMPORTANT: If the value of OLbd is out of the correct range [-5 ; -75] the reasons are:

File: AOS ONE service manual (ENG).01.doc ©Copyright 2007 by Electrolux Professional P.7/31