Could be heater or main module fault. We stock the module at £49.90+vat plus postage of £5+vat. If it does not sort the problem, you can return it for a refund, less our handling charge of £9+vat. Go to our site at www.emwelec.co.uk and put WT940 in the search box
EMW
March 2011
Hi monthehoops
just checked thermistor on the heater reading 26 when submerged into hot water goes down to 8.5 which indicates is working ok. I have continuity between live and neutral on heater which I pressume is a closed circuit therefore would you think it is the pcb
Dazza
March 2011
could be pcb worth checking the heater tho as an open circuit element will give you this fault