The heating furnace our home has been cutting off during the warm cycle or sometimes would not even come on when it had been set. If you took a screwdriver handle and tapped the controller you’d be able to get the pilot on and eventually the furnace would catch and turn on. It would stay on for awhile or shutdown a short time after.

Inside  of the controller module is a relay that has a known tendency to “stick” in position. A sharp hit would loosen the relay and allow currently flow.

I’ve had repair estimates from an $800 dollar controller board, $480 eBay used board but eventually found it on Amazon Prime for $149! You can do a search on Amazon and find this exact controller. They are dropped shipped from North America HVAC. Even though they give an estimate of 7 days I received mine in 3.

Payne Controller: HSC Igniter / Lockout Control
OEM 1007-100
LH33WZ512A
9023
Note: Furnace by: Carrier Bryan Payne

After I examined the original 27+ year controller module I checked out the suspected failed relay component. If I was to do this again I may have replaced that part by itself to see if it repaired the problem. The issue is the downtown waiting for the part to arrive and not knowing if that part actually would fix the problem. I did the shotgun approached and replaced the module. It probably is a good idea to update the controller after so many years of use.