Service Manual for the Thermador Professional Series Rangetop, Model PCG366G
58300000151625_ARA_EN_B
Page 23 of 34
Figure 30: Screw Connecting Standard Valve to Microswitch
Gas Leaks
Carefully check for gas leaks at each gas component that was
removed, replaced, or otherwise serviced using a gas leak detector or
bubble test.
4.2.5 Microswitch Removal and Replacement
1. Follow all safety precautions and steps in the
2. Remove knob from valve stem by slowly pulling knob straight out,
away from control panel.
3. Using a 9/16 inch wrench, remove the gas tube by unscrewing the
hex nuts connected to the standard valve and to the jet holder
assembly. Be careful not to bend the gas tube.
4. Remove the burner support rail (with jet holder assemblies
attached) by following the steps in the
Burner Support Rail Removal and Replacement
5. Using a ¼ inch socket wrench/ratchet, remove and retain the
self-tapping screw located under the manifold that secures the
standard valve onto the manifold (see Figure 28). Be careful not to
lose the rubber washer attached to the screw.
-OR-
Using a ¼ inch nut driver, remove and retain the self-tapping
screw by accessing it from under the chassis base, through the
corresponding access hole (see Figure 28). Be careful not to lose
the rubber washer attached to the screw.
6. Remove the (connected) standard valve and microswitch from the
manifold (see Figure 29). Be careful not to lose the red rubber
washer attached to the standard valve.
7. First make a note of how the wires (piggyback and single) are
connected to the two terminals on the microswitch, and then
disconnect these wires from the terminals (see Figure 29).
NOTE:
It is recommended to label and tag all wires and
harnesses prior to disconnecting them, so as to correctly identify
their connections/locations when re-assembling.
8. Detach the standard valve from the microswitch by removing and
retaining the T-10 screw, and then pulling the microswitch off the
alignment pin on the standard valve (see Figure 30).
9. Replace the microswitch if needed.
Gas Leaks
Carefully check for gas leaks at each gas component that was
removed, replaced, or otherwise serviced using a gas leak detector or
bubble test.
