Question about Whirlpool GH9176XMS 1100 Watts Microwave Oven
Microwave will not operate (cook). F7 error code
appears on the display.
Electrical circuit interruption between L1 and Neutral in
the microwave inverter circuit.
1. Check door, hinge and cavity front alignment and adjust
2. Check the operation of all interlock switches.
3. Check over temperature protector for the magnatron.
4. Check all Cavity Thermostats for closed circuit.
5. Unplug the oven for at least 40 seconds. If this solves
A. Check the Cooling Fan for proper operation or
B. Check the resistance of the magnetron thermostat.
It should be 0 Ohms, replace if necessary.
6. Check that the control cable to the 1100 watt inverter
is properly connected to plug P2 on the display PCB
& Adjust or Reconnect
7. If interlock switches operate correctly, replace 1100W
8. If problem persists, replace control assembly.
Posted on Nov 18, 2009
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Posted on Jan 02, 2017
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