F7 error on Velos microwave - Microwave Ovens

The controller is not getting the correct feedback signal from the SMPS (switched-mode power supply AKA inverter).

It may be a problem with the inverter, magnetron, magnetron thermostat, controller, or thew wiring that connects them.

There should be a "mini-manual" (tech sheet) hidden inside
the unit behind the control panel or hidden on the left side behind the grille,
which is very helpful when troubleshooting, testing, and locating components.



You can see a YouTube video
here that shows you how to remove the
controller assembly from a typical over the range microwave in less than 5
minutes.



You can find see the parts list with helpful exploded
views and download manuals for it here:



http://shared.whirlpoolcorp.com/product_literature/search_results.jsp?searchTerm=XXX&siteCd=WHRCOM&userType=Consumer



NOTE: You must change the XXX in the URL above to your
exact model number with suffix (but no dashes) as shown on the tag in the
cooking cavity or on of the oven. Then copy & paste it into your browser\'s address box.




You can buy part from
the Pros here, our favorite supplier.


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