Check the blower fan is running and relatively quiet. If the fan needs to be replaced, PN NC-1500 (1087/1275) or NC-1520 (859/945) Clean the upper section of the NCAT furnace as described in the maintenance section Verify the door is...
FAQ
The furnace is taking a long time to heat up
Check the heating elements. They are the left, right, top, and bottom walls of the chamber. If or more of them is cool, while the others are warm, they will need to be replaced. As there are multiple variations, you...
The furnace is not heating
If the temperature is below 50F (10C), take a match/cigarette lighter, and apply the flame directly to the chamber thermocouple for 15-30 seconds. Once the red display starts to change, the furnace should begin heating when you close the door...
I came in this morning, and the furnace displays ‘INAC’ on the screen
This is a safety feature, often used alongside the startup timer. It only triggers if the furnace is idle for over 4 hours, and it shuts the heating elements off. To reactivate it, just hit ‘enter’ on the keypad and...
My burns are cutting off at the 10-minute mark, and not finishing
See “Long Burn Times” above