hi just been to fit a heater to the above which had shorted out.. fitted new element out on test with wet load all working ok element cut in after few tumble had back off to check heater working when it started to glow switched off dryer by turning knob to off but noticed when I put dryer knob back to any setting the heater immediately came back on without the fan working .. any ideas? ok when reset but seems dangerous if customer end program early