Kenwood chef speed control

[gizmo]

In August, most unexpectedly, my employer, also a good friend, passed away.

The business has been closed since then, and for sale.

It is now being sold and my employer's family are clearing out the house next to the business.

They have kindly given me her Kenwood Chef mixer. It is almost unused - in fact it might be unused. It is a KM320, the ID sticker also has BK35 under the model number.

I believe it is somewhere around 5 to 10 years old.

I plugged it in when I got it home and it runs at full speed regardless of the speed setting.

Can anyone shed any light on the speed control in these later Kenwood Chefs?

My own machine used to be my Grandmother's, it is from the 1960s or early 1970s.

(Dark blue knob, Australian made.) I am quite familiar with the speed control in the older models, with the bobweights on the armature, an "electro-mechanical" speed control, not like the electronic control in the later models. I know nothing about these newer ones.

I probably should try it somewhere on mains power - there is a slight chance that it doesn't like our power, as we are on solar power, but we have a very high quality inverter and no other device I own has had any problem with this inverter's output. So I do think the Kenwood has a fault. Is there anything in particular I should be looking for?

Thanks

Chris.

 

[tolivac]

Try it on the "mains" power supply anyway to see if it does work.If the mixer has an electronic controller-it may be sensitive to the inverters output-is the in verter a sine wave model?

 

[gizmo]

Well... the inverter is a really good sine wave inverter (Latronic LS series 24 volt to 240 volt 3kw continuous 9kw surge) but the inverter was the issue...

This afternoon I took the mixer in to town and tried it on the mains - works perfectly!

Sine wave inverters don't actually produce a pure sine wave, more a stepped approximation of a sine wave. Most appliances can't tell the difference - this one can...

As I already have a good Kenwood Chef, I will give this mixer to my sister, who only has a little hand held mixer (and mains power...)

Thanks Tolivac for your advice.

 

[tolivac]

That Kenwood mixer is sensitive to the output of your inverter-powerline generated sinewaves are more pure-less harmonics-that might have been what bothered the Kenwood machine-some machies will work-others will not.Good you found out.Glad you could work it out.I learned something too-Kenwood mixers don't work from inverters!