A common fault in motorized kitchen appliances is failure of the speed control Triac and/or associated Diac. This teardown shows you how to get to and replace the Triac and Diac in a Sunbeam food processor.
Projects from Make: Magazine
Sunbeam Food Processor Triac Replacement
Repairing a faulty speed control.
- Like
- Digg
- Del
- Tumblr
- VKontakte
- Flattr
- Buffer
- Love This
- Odnoklassniki
- Meneame
- Blogger
- Amazon
- Yahoo Mail
- Gmail
- AOL
- Newsvine
- HackerNews
- Evernote
- MySpace
- Mail.ru
- Viadeo
- Line
- Comments
- Yummly
- SMS
- Viber
- Telegram
- Subscribe
- Skype
- Facebook Messenger
- Kakao
- LiveJournal
- Yammer
- Edgar
- Fintel
- Mix
- Instapaper
- Copy Link
Steps
Advertisement
Step #1:
- The Sunbeam food processor. When plugged into the wall it starts at full speed, and the speed control dial can't turn it off or adjust the speed.
- This is a common mode of failure when a speed control Triac has gone short circuit, or failed partially, becoming easily triggered. This usually happens after a voltage spike from an inductive load, like the motor in the appliance, or something else plugged in nearby.
- Do not under any circumstances dismantle the unit with power applied, as it is double insulated and you could be electrocuted and a residual current earth leakage device will probably not be able to trip to save you.
- If you are not confident with mains wiring, get someone who is to do this repair for you.