Peter,

Many thanks for your help - yet again!!!

Is it one of these that I need?

http://www.sparesrus.biz/ol-catlg/crs-td-door-01.htm

The either of the top two will fit, the bottom two have no handle release
like yours, it is not necessary to change it until it actually breaks it is
normal to be stiff to open.

I take it you did see my post yesterday re the thermostat
problem you helped with a few weeks ago.
All now working fine..

Yes glad to hear that

Thanks,
Roy