Hi
Jump the stat.The board should then see a closed circuit and call for heat.
Stats are only a type of switch
Thanks
Alex
On all stats you have a live feed in and a swiched live out when its made.
You need to link the live in with the switched live out.
In a 2 wire stat link the two
In a 2 wire plus neutral link the two lives leave the neutral
Rare 3 wire is a satisfied live output so link feed in with demand out.
What stat is it?
I have Red, White, Green and Yellow.
if ur getting a high limit code it means ur heat exchanger is overheating, the blower is supposed to come on as to cool the furnace, if this is what is going on i cant see how the tstat has anything to do with it
ok look between the burners and inducer motor there should be a highlimit switch mounted inside the furnace prob 2 wires, jump them together
Hvac tech and Mechanic
15 yrs field exp/5yrs supervisingexp/ Nate and Epa cert.