Ihave a furnace it has a 50a50 241 control on it. From t- stat call for heat gas valve opens burners start 10 seconds later gas valve closes, now I have cleaned the flame sensor and it's a year old, Another thing I noticed is I get no red led light fromm the module their no light comes on to let me know the error now I do under stand it not sensing flam to keep the gas valve open could something be wrong with the module how to troubleshoot that one.
