The mixer is still working, but only has 2 speeds now - slow and very fast. Starts on slow than goes fast, nothing inbetween.
SOURCE: Blakeslee (Kenwood) A717 mixer speed control
I had the same problem. Had to strip the machine down to get to the motor. On the top is a moving plate with various capacitors etc mounted. On the front side there was a Capacitor (At least I think it was) with the wire broken.
I resoldered it and the machine now works fine.
I hope this helps
SOURCE: Mixer wont run at slow speed
If you can remove the switch cap, Get a can of CRC electrical cleaner from an auto parts store and was off the switch and contacts. Make sure it's unplugged and do it outside to avoid the mess and fumes. It dries very quickly.
Hi Emma,
Not going to be much help here to be honest. We have the KM020 and this is the only problem we have had with heavy machine use in 4 years - and a minor issue at that.
This place is good for spare parts http://www.buyspares.co.uk/
If you're in the UK, you can call this number 02392 392 333 and give them your post code, they'll let you know who the local service agent is.
All the best,
SOURCE: Kenwood Chef KM400 motor speed is too slow
A failed SCR or triac will not always show visually any sign of failure. Chances are good that is all that is wrong. If mixer had been plugged in when it got wet, that is all it takes. Also check the transient voltage supressors if the chef has them. They would be identified on the circuit board. as TVS or MOV along with a number. Only number to use is the one on the component.
If you can find ratings for the old devices, just matching the basic ratings should do. Just guessing, but the SCRs should be 20 amp and 400 volt, If the old ones are a lower rating than my guess, there is no problem with using the higher ratings, if my guess is low, go with the original's ratings. Manufacturer of device does not matter as long as ratings are at least comparable.
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