My Chamberlain garage door opener failed so I decided to check it out. My reasoning- it's broken so taking it apart will not make it any worse------------- but I might just be able to fix it.
The cover was full of ground up plastic, the remains of the main drive pinion. I found Easygates on web & behold in "most common spares" was a worm & pinion set. I ordered a set & two days later my door was working again. Cost - £35 instead of £200+ for a new system. What a result!
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