On my drier the pump had failed, this was causing the reservoir at the back of the drier to fill up, there is a float that actually switches the heater off and also brings the red light on when the water in the grey plastic container at the back of the drier gets too high,
effect: the water draw is empty but the red light is on and the heater doesnt come on.
cure: replace the pump :)
morpheus
April 2008