This is a BRAND NEW OEM Intertherm/Miller/Nordyne Furnace Ignition Control BoardThe Intertherm Part # is 626421 (replaces all the old numbers listed below). Many boards have a -0 -A -B or -C ect after the main 6 digit part numbres- this board replaces all of those suffixes associated with the main 6 digit part #s below). Board comes with wiring instructions if needed. Thanks for looking and good luck!
The control board is the "brain" of your unit, coordinating and executing the operation of other various components by sending voltage when and where needed. A control board is constantly monitoring sensors and safety switches in the unit.