Control Board Removal And Replacement; Control Board Removal And Replacement (Large Oven) - Thermador Pro Grand PRD304EG Service Manual

Service Manual for Thermador Pro Grand Dual Fuel Ranges:
1. Follow all safety precautions and steps in Preparing the Range for
Servicing, page 21.
2. Follow all steps in Accessing Components under the Maintop,
page 21.
3. If obstructing access to the regulator, remove the burner support
rail (with jet holder assemblies attached) by following the steps in
Removing the Burner Support Rail, page 24.
4. Use two wrenches (open-end, or adjustable) and hold the large
nut on the regulator steady with one wrench, while you
simultaneously rotate the flared adapter with the other wrench –
until you can remove the flared adapter from the regulator (see
Figure 103).
5. Use a wrench to hold the connecting pipe, while you
simultaneously rotate the regulator until you can detach it
(see Figure 103).
6. Replace the regulator if needed.
NOTE: When replacing the regulator or associated fittings, use
pipe sealant on pipe threads only - such as the manifold pipe to
T-connector, T-connector to connecting pipe, connecting pipe to
regulator, and regulator to flared adapter (threaded end only).
Never use pipe sealant on flair connections or pressure fittings, such
as the flared end of the flared adapter.
7. When replacing the regulator, make sure it is positioned correctly
with its cap fitting facing upward, as shown in Figure 103.
Gas Leaks
With electrical power off, carefully check for gas leaks at each gas
component that was removed, replaced, or otherwise serviced using a
gas leak detector or bubble test.
58300000157422_ARA_EN_A
PRD304EG, PRD364EDG, PRD364EDPG, PRD364ELG, PRD366EG, PRD366EPG, PRD484ECG, PRD484EEG, PRD486EDG, PRD486EDPG, PRD486ELG

4.5.14 Control Board Removal and Replacement

The 48-inch range has a control board for each of the two ovens.
Be sure to check QuickFinder for relevant information, documentation,
and the correct part number when replacing this component.
4.5.14.1

Control Board Removal and Replacement (Large Oven)

This procedure is for the oven control boards of 36-inch and 30-inch
ranges, as well as for the large oven control boards of 48-inch ranges.
For replacing the small oven control board of 48-inch ranges, see
Control Board Removal and Replacement (Small Oven), page 56.
1. Follow all safety precautions and steps in Preparing the Range for
Servicing, page 21.
2. Follow all steps in Accessing Components under the Maintop,
page 21.
3. If obstructing access to the large oven control board, remove the
burner support rail (with jet holder assemblies attached) by
following the steps in Removing the Burner Support Rail, page 24.
4. Remove and retain the screws holding the control board shield
onto the range chassis and then remove the control board shield
(see Figure 104).
5. Remove all multi-pin wire connectors from the control board as
well as the spade connector of the ground wire (see Figure 104).
NOTE: It is always recommended to label and tag all wires, wire
connectors, and harnesses prior to disconnecting them so as to
correctly identify their connections/locations when re-assembling.
Alternatively, you can photograph prior to disconnecting (for
example, with your mobile phone).
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