ELETTRODOMESTICI
VIA CHECCHI 98
I 21013 GALLARATE
ITALY
Page 15 of 28
Tuesday, June 18, 2002
BOSCH 700 SERIES:
SERVICE INSTRUCTIONS FOR OVEN TESTING AND BASIC TROUBLESHOOTING
BUZZER It never beeps. 1. Check connections, referring to P1A cable shown in the Display Board
ó Power Board table.
2. Replace the Display Board.
A lot of detents are not recognized
by the control.
1. Check connections between P8 on the Display Board and the knob.
2. Replace the knob.
3. Replace the Display Board.
KNOB
Increment and decrement rotations
are reversed.
Check connections between P8 on the Display Board and the knob.
OVEN LIGHTS Lights never turn on 1. Check connections, P11 on the Power Board.
2. Check the transformer, particularly the fuse on the secondary winding.
3. Check the lamps themselves.
4. Replace the Power Board.
COOLING FAN It works even if no cooking modes
are running and the cavity is cool.
1. Check the RTD connections. If the circuit is opened, the control sees
high temperature.
2. Check the connections between the cooling fan and the Power Board
(P10, P19 for SGL or P11 for DBL).
3. Replace the Power Board.
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