Toddy asked ... Pdw5048tms saw?    |    Karen asked ... Royal 480nt cash register?    |    andrew smith asked ... 2009 fiesta 1388 cc titainum?    |    Eric asked ... Strimmer fuel line?    |    Frank asked ... Working fine. No cold air?    |    Click here to ask your question

How can I repair a tilt and slide upvc door that keeps coming off runner?

How do I repair a tilt and slide upvc door that keeps coming off the runner at the bottom? When it comes off I have to physically lift it back on to the runner.
Linda, March 2011