Electronic part identification

[summerofgeorge]

This isn't brewing related but figured the HBT guys are pretty knowledgeable in all areas...We have a sandwich/omelette maker (http://www.amazon.com/dp/B000CFCSNA/?tag=skimlinks_replacement-20) that my wife loves. Well, it recently took a crap. I can't find a replacement so I thought I'd try to fix it. I'm trying to identify a part that's inside it. Some pictures are below. The larger piece with 2 holes is just used to hold the center piece in place. The two contacts were wired to neutral and hot. Thanks!

 

[kenmunkholm]

Likely a high limit.
Contacts open and interrupt current flow at 185C (365F).

Replace with Klixon (Sensata) device or similar.

Edit:
OK, reading your post in detail, if you are sure that it was wired *across* line to neutral, it was a normally open switch, that closes on rise. At 185C it shorts. This is a crowbar type of protection. Messy and brutal.

Check the wiring and I think you will find that it is in series with the line to thermostat, or the thermostat to heater.

 

[passedpawn]

I agree, probably the high-limit thermal fuse. Using a multimeter, the terminals should have about zero ohms between them.

If it is open, then it's bad; if so, you might check out the thermostat too. It might be the real source of the problem.

 

[summerofgeorge]

Thanks guys! I'm going to open this guy up a little more. At first I didn't really see any other parts that might be causing the problem. I'll see if I can find a thermostat of some sort. It would be much easier to just buy a new one but can't seem to find it.

 

[JRems]

This is HBT, guys do crazy stuff here. Remove the thermostat, and have the first PID controlled waffle maker!

 

[passedpawn]

That thing might BE the thermostat - single temp. Yea, I'm guessing that is what it is.

It should read shorted now, but when the temp reaches setpoint it will open.


Like this. There are much cheaper ones, but not in stock. $25.

http://search.digikey.com/us/en/products/3455RC 01000232/480-3241-ND/1893839

 

[stlbeer]

This is HBT, guys do crazy stuff here. Remove the thermostat, and have the first PID controlled waffle maker!

This!

 

[jpalarchio]

I know it's not the DIY way but the cheaper and faster solution may be to scavenge from this: http://www.ebay.com/itm/290675523270

Price on this seems a bit high given that Woot sold them for $15 at one point.

 

[summerofgeorge]

I know it's not the DIY way but the cheaper and faster solution may be to scavenge from this: http://www.ebay.com/itm/290675523270

Price on this seems a bit high given that Woot sold them for $15 at one point.

Yeah, I saw that one on ebay. I would rather just buy one. I think we paid $10-15 for it a few years ago. It would probably end up being more than that to fix it. Either way, SWMBO would be VERY happy if I could figure something out. It would be especially good if I got assistance from the brewing community (she thinks I'm wasting too much time on HBT).

 

[kal]

Looks just like the temp probe I have in my kitchen hood fan.

Kal