Tempstar Furnace Won T Ignite

This is typically the problem if you can hear your furnace click on but it does not fire up.

Tempstar furnace won t ignite.

If the igniter fails or cracks the furnace won t heat. The igniter gets very hot and glows bright orange to light the gas burner. Refer to your user manual to locate the ignitor. It kicks on repeatedly but won t ignite.

Remove the front panel and look for the ignitor sensor. If any of these things aren t right you won t get ignition. Take the aluminium pilot tube off the gas valve start up and see if gas actually comes out of the pilot fitting and if you have 24v on the 2 blue wires the igniter may be bad that should cause the mini igniter to glow when it gets 24v. Ignitor won t light tempstar nug5125bkb1 gas furnace.

The pilot light or ignition sensor is usually the most common issue when your furnace will not ignite. Check that the thermostat has power to it if your furnace won t turn on. 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. Check that the thermostat is on.

If it s an intermittent pilot system there may be other things going on to where no ignition sequence is taking place. Answered by a verified hvac technician. If the igniter is cracked replace it. To determine if the igniter is faulty remove the igniter and inspect.

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. Check that the thermostat is in the heating mode of operation. If you have hot surface ignition the ignitor may be broke.