Dear Tracey, the temperature is not relevant to your problem, the water condensed in your cabinet during the running portion of the cycle has to drain away down the hole you mention. This is not happening, and this is the cause of your trouble. It often gets blocked with a pea, cellophane, mould etc. You may indeed see the hole clear but aft of that will be the obstruction. I rarely have to dismantle and blow out the small hose situated at the rear, but often succeed with reaming out the first few inches past the internal hole by intoducing a small plastic straw like that used as an extension on an oil-aerosol can. Good luck!
Repairman, April 2009