Roast Probe Shows Wrong Values; Safety Relay (K1) Trips - Miele H 408 BM Series Technical Information

Technical Information
Note:
Use only an original Miele microfuse, which has special release characteristics.
Using other brands can cause malfunctions.
Note:
12-amp fuses were used in the current production run. If the fuse in the
appliance is a 10-amp fuse, it can be replaced with a 12-amp one if/when it trips.
Cause:
Short circuit in the high-voltage assembly.
Remedy:
1. Fix the short circuit, testing all electrical components and connectors, and
replacing them as necessary:
a. Transformer (Section 012-4.12)
b. High-voltage capacitor (Sections 012-4.14 and 012-4.15)
c. Diode V1 (Section 012-4.16)
d. Protective diode V6 (Section 012-4.17)
e. Magnetron (Section 012-4.8)
2. Replace the fuse.
Note:
Use only an original Miele microfuse, which has special release characteristics.
Using other brands can cause malfunctions.
Note:
12-amp fuses were used in the current production run. If the fuse in the
appliance is a 10-amp fuse, it can be replaced with a 12-amp one if/when it trips.
3.23

Roast Probe Shows Wrong Values

Cause:
Grease deposits on the roast probe plug.
Remedy:
Clean the roast probe, including the plug.
3.24

Safety Relay (K1) Trips

Cause:
Fault in power electronic (1N1).
Remedy:
Replace the power electronic.
Cause:
Fault in control electronic (2N1).
Remedy:
Replace the control electronic.
Cause:
Oven cavity temperature too high.
Thermostat 1F1/1 temperature exceeds 275°F (135°C). The thermostat
70
H 408x BM