Removing High Voltage Diode - Thermador CM301B Service Manual

Lit. No. 94-30-006B
REMOVING THE HIGH VOLTAGE DIODE
WARNING
Turn off the electrical power going to the
oven before servicing.
CAUTION
When you work on the oven, be careful
when handling the sheet metal parts. There
are sharp edges present and you can cut
yourself if you are not careful.
1. Turn off the electrical power going to the
oven.
2. Pull the oven out of its mounting location
so that you can access the trim and ple-
num covers.
3. Remove the trim and top plenum covers
from the oven (see Page 10).
4. CAUTION: DISCHARGE THE HIGH
VOLTAGE MICROWAVE CAPACITOR
WITH A 20,000 OHM, 1- OR 2-WATT
RESISTOR TO CHASSIS GROUND
(SEE PAGE 18) BEFORE WORKING ON
ANY OF THE HIGH VOLTAGE COM-
PONENTS. BE VERY CAREFUL NOT
TO TOUCH THE BARE RESISTOR
LEADS WHEN YOU DISCHARGE THE
CAPACITOR.
5. Disconnect the wires from the terminals
of the high voltage diode.
6. Remove the mounting screw from the di-
ode and remove the diode from the shield.
HV Diode
IMPORTANT: Make sure that you position
the high voltage diode with the cathode (–)
terminal at the top and the anode (+) termi-
nal at the bottom. The diode symbol is
shown below and on the side of the diode
body.
Page 19
CM Oven Service Manual
Screw
GN-134
OR-135
Tech Tip!!
Cathode (–)
Anode (+)