Tempstar Furnace Won T Ignite

If the igniter is cracked replace it.

Tempstar furnace won t ignite.

Check that the thermostat is in the heating mode of operation. To fix the furnace that won t start turn off the power to the furnace and turn off the gas. Set the temperature you would like for test purposes just set about 10 degrees hotter than the current temperature to see if the furnace turns on. If it s an intermittent pilot system there may be other things going on to where no ignition sequence is taking place.

If the igniter is not cracked use a multimeter to test the igniter for continuity. Remove the front panel and look for the ignitor sensor. It is usually located near where the flames shoot out of the burners. Check that the thermostat has power to it if your furnace won t turn on.

If you have hot surface ignition the ignitor may be broke. The igniter gets very hot and glows bright orange to light the gas burner. If the igniter fails or cracks the furnace won t heat. Ignitor won t light tempstar nug5125bkb1 gas furnace.

Check that the thermostat is on. It kicks on repeatedly but won t ignite. To determine if the igniter is faulty remove the igniter and inspect. Answered by a verified hvac technician.

This is typically the problem if you can hear your furnace click on but it does not fire up. A faulty or dirty ignition or sensor is a relatively easy fix so follow these steps and you may be able to solve the problem yourself. Refer to your user manual to locate the ignitor.