Guide :Building Materials : Craftsman LiftMaster Chamberlain Garage Door Opener Wireless...
The garage door opener i have had fitte will not accept its codes ,eg pushing black button to desired height and then pushing remote to set the desird height .(then its supposed to do its own trial run ggoing down then up to that pre set height .It doesnt it goes down then just keeps on pulling and making the belt slip on the cog (tension is good and not loose)its a chamberlain remote garage door opener .please can you help??
Aug 24, 2008