I HAVE A SPEED QUEEN DRYING TUMBLER, MODEL NUMBER STB50CE. ITS STUCK ON PERM PRESS MED TEMP. IF I TRY TO CHANGE TO OTHER MODES IT DOES NOT RESPOND AND THE LIGHT FOR THE SIGNAL IS NOT SHOWING WHAT COULD BE THE PROBLEM , I TOOK ONOTHER BOARD ON THE OTHER MACHINE SAME TYPE ITS WORKING FINE. SO I AM VERY SURE THAT THE PROBLEM IS ON THE CONTROL PANEL. HOW CAN I RESOLVE THIS.