Sliding window above cooker jammed

[Lynne]

Is there a simple way of releasing the jammed sliding window above cooker or will it cause more damage? I'm not too bothered about it but we are on our way to pembrokeshire in sweltering heat and the dog is melted in the back! If the window would open a couple of inches it would give the dog a bit of breeze! Both cab windows are fully open. I know its trivial but would be grateful of any advice!

[mpl_gr]

When ours was jammed it was the material in the runner all gathered up and blocking the runner, I would check that first and maybe give it a little squirt of wd40 or similar to help it slide.

[Lynne]

Thanks. Will check for the material first and then try wd40 (or UB40 as my husband prefers to call it!)