Fan Cooldown; Microwave Operation; Figure 012-1: Ducting - Miele H 408 BM Series Technical Information

H 408x BM
moisture will build up in the oven cavity.
b. Air path during convection, broil and combination cycles: The air
baffle (Figure 012-1, Item 5) remains closed. Vapors move through
the vapor passage (Figure 012-1, Item 6) into the vent (Figure 012-1,
Item 7) and mix with cool air.
3. Cool air and vapor exit:
Cool air and vapor are pushed out through the vent above the air guide at
the front of the appliance.

Figure 012-1: Ducting

2.2

Fan Cooldown

The cooldown function protects the appliance from damage by temperature
and moisture. It is switched off when the oven cavity temperature falls below
167°F (75°C).
2.3

Microwave Operation

The high-voltage system generates the microwave energy. The incoming AC
power passes through a "step-up" transformer and is further increased by the
diode-rectifier circuit (including a high-voltage capacitor) to supply the
magnetron with high-voltage DC power. The magnetron converts this high-
voltage DC to microwaves. The microwaves pass through the wave guide and
are dispersed into the oven cavity by the wave distributor motor. The oven
cavity is designed to resonate the microwaves that are absorbed by the food.
27
Technical Information
1 Cooling fan
2 Rear air duct
3 Front air duct
4 Release element
5 Air baffle
6 Vapor passage
7 Vent