check that the fan run freely. If neccessary oil it.
Also check that the that the fan is not clogged with dirt.
Check that the airflow duct is clear of dirt.
Check that the fan motor is not overheating, if possible monitor the amps.
rod
January 2013
where do i source a new fan motor,
mine draws excess amps, over heats and siezes
Rod
January 2013
Check that the convector fan is free of dirt on the impellors. If it is clogged up, it reduces the air flow pasing over the heat exchanger, causing overheating
Rod
January 2012
Just experienced the same problem. Tried fitting new heat sensor but still doesn't work. After 28 years trouble free service I think I've had more than my money's worth - so I'm about to buy another!
Ian
September 2008
i did a service call to a warmplan heater today, problem was caused by the convector fan at the bottom of the heater not working properly. This causes the heater to reach temperature very quickly and shuts off.
Ross
February 2008
I've got the same problem - the bloke's been out half a dozen times to fix it but it still doesn't work properly. He's coming out again in January!
I keep turning it on and off (after it's cut out) - and a couple of times I've got it going again - but as soon as it cools down it doesn't work.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix convector heaters.