Can someone help with an old garage door opener? | Thread profile

Hi, I have a Chamberlain Liftmaster 1040-6 that blew the thermistor on the circuit board due to a broken lamp socket that caused a short. Does someone have an idea where I could obtain one of those thingies? Thanks, Ed

Quote: Originally Posted by maitre Hi, I have a Chamberlain Liftmaster 1040-6 that blew the thermistor on the circuit board due to a broken lamp socket that caused a short. Does someone have an idea where I could obtain one of those thingies? Thanks, Ed Not familiar with that model, What is the number ...

There are all kinds of numbers on the C/B. Which one do you need?

Anybody out there? Anyone?

If the opener does not have the safety sensors you may not find the part. Manufacturers quit making parts for operators without safety sensors.

I know they have stopped supporting this old opener. That's why I an asking here. What is this forum good for anyway? What I need is just the NTC surge protector on the C/B board, a piece for about $2.

If it has an integrated Circuit board you can still get parts for it. For individual components on the C/B, However you will have to get from an electronics store I.E. Radio shack. I don't even know what a thermistor is so you obviously know more about electronics than anyone who has looked at this post. On the C/B are about 2 or 3 numbers I need the one that looks something like this 41A4252-...

This thermistor (NTC) limits the current the moment the opener is started to protect vital parts on the C/B. I probably could get one at Radio Shack, the problem is that I don't know the exact specs of this burnt thingy.