Gliderol garage door problem

[ubeaut]

My parents have a Gliderol garage door opener/closer (about 4yrs old) which has recently gone on the blink. The main unit is receiving a signal from the remote as it beeps once when the remote is operated but the door won't operate. Does it need to be reset or does the problem go deeper than that? perhaps maybe replace the whole board. If it needs resetting how is this done? Any help is appreciated.


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