KitchenAid 5KFP1333GER, Service & Repair Manual, Page: 11 / 23

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Check the bottom of the work bowl handle for interlock action. Proper interlock operation can be determined as shown
below.
Working and non-working bowl safety interlock

After it is determined that the work bowl interlock is working properly, the safety switch can be tested by the following
procedures:

Lock the work bowl to the base of the unit.

Put the lid with the pusher on the work bowl and lock it into place.

With the unit unplugged, t
urn the power switch to the “ON” position.

Refer to Fig. 2 and measure the resistance across the power plug (L1 & Neutral for 115~120v. domestic units or
L1 & L2 for 230~240v international units).

If the switch is good, the resistance will be very low (typically less than 10
Ω).

If the switch is not working (bad), the resistance will be very high (higher than 1.5
MΩ).
Safety Switch test measurement.

After troubleshooting, use the SERVICE PROCEDURES to replace any faulty component.
Working - Interlock extended with lid on bowl
and pusher fully seated.
Non-working - interlock not extended with lid
on bowl and pusher in place.