I have a Lakewood Model 750 Strip Heater and the caution light is lit. How do I get the unit working again.

yes - replace the part.

This is a limit switch problem. You need to replace the limit switch. It may even be a resetable one. If it is, then you can just simply push the bottom on the back of it and it will reset. If its not then you will have to replace the Tstat.

you can still use this heater, but continue to monitor its operation. If it gets hot enough to start smoking again, discontinue use and purchase a new one. Your safety means EVERYTHING!!!!!!

I don't know how to make your heater work again, but I do know (from long experience with Lakewood 707s) that the setting knobs often fail to function properly even if the heating element still works. My solution is to plug the heater into an adapter with an on/off switch on it and use that to control the power. I leave the setting knobs on the heater itself in the position where I usually use them (max heat). These are excellent heaters except for the knob problem.

there are units available on Ebay and Amazon. For about 18 bucks.

The problem sounds like the thermostat which is probably a bimetal strip. It sounds like the bimetal strip is just constantly bending one direction then the other. It could be possibly adjusted by bending it -- this would be a trial and error process.

Or, it could be replaced.

visit this page for service center information as well as parts:
http://www.lakewoodeng.com/html/parts.html

visit http://www.lakewoodeng.com/html/parts.html for service center and parts.

http://www.ul.com/media/newsrel/nr041405.html
Concerning Lakewood Model #7096
RECALL
May cause electric shock!