Thermador Pro Grand PRD304EG Service Manual page 48

Service Manual for Thermador Pro Grand Dual Fuel Ranges:
7. Detach all wire connectors to the LED indicators and temperature
gauge, and make a note of how all the wires are connected.
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 the wire connections prior to
disconnecting (for example, with your mobile phone).
8. Remove the control panel (see Control Panel and Bullnose
Removal and Replacement, page 64).
9. Remove the oven door(s). See Removing the Door, page 77.
10. Remove and retain the two screws from each manifold support
bracket that attach to the manifold, and then remove the support
brackets from the manifold (see Figure 90).
11. Disconnect the wire connectors from the potentiometers and then
detach the potentiometer from the XLO valve by using a small flat-
blade screwdriver to gently separate the XLO valve from the
potentiometer standoffs (see Figure 86, page 46).
12. Slide the potentiometers off the XLO valve stems, and retain the
potentiometers.
13. Detach the wire connectors to the two solenoid valves, and to all
the microswitches. Make a note of how the wires are connected.
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 the wire connections prior to
disconnecting (for example, with your mobile phone)
14. Remove gas tubes from standard valves: Use a 9/16th inch
wrench to remove the gas tubes by unscrewing the hex nuts
connected to the standard valves and to the jet holder assemblies.
Be careful not to bend the gas tubes.
15. Remove gas tubes from solenoid valves: Use a 1/2 inch wrench to
hold the nut on a solenoid valve, while unscrewing the attached
gas tube hex nut with a 9/16th inch wrench (see Figure 80,
page 43). Then remove the other side of the gas tube attached to
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PRD304EG, PRD364EDG, PRD364EDPG, PRD364ELG, PRD366EG, PRD366EPG, PRD484ECG, PRD484EEG, PRD486EDG, PRD486EDPG, PRD486ELG
the jet holder assemblies and remove the gas tubes. Be careful
not to bend the gas tubes.
Figure 90: Manifold Support Bracket (Shown with Control Panel
Removed)
1 Screws (2) holding manifold support bracket onto
manifold
2 Manifold support bracket
3 Holes on manifold support bracket (2) for receiving
screws from bezel
16. Remove the two solenoid valves (see Solenoid Valve for XLO
Burner – Removal and Replacement , page 42).
17. Detach microswitches from all XLO and standard valves: Remove
and retain the small screw that holds the microswitch onto the
valve, and then pull the microswitch off the alignment pin on the
valve (see Figure 77, page 41).
NOTE: If replacing a manifold assembly (which has XLO and
standard valves pre-installed), you do not have to remove or reuse
the standard and XLO valves from the old manifold.
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