Pilot Light Is On But Furnace Won T Fire Up

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

Pilot light is on but furnace won t fire up. Top 10 reasons why the gas pilot light goes out won t stay lit. Gas boiler pilot on but will not fire lavimoniere productions llc. When thermosta is switched on the flame lights then shrinks. If not replace the dirty filter with a clean filter.

Why won t my furnace turn on if my pilot is lit. If it is burning but doesn t think it is i have a serious fire. The pilot is on and the burners are lit the fan goes on as well. If your furnace won t turn on check your pilot light.

This ehow is strictly for a forced air gas furnace. I have electroic pilot. Before you attempt to fix a furnace that won t start make sure you know what kind of furnace you have. 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.

If the furnace doesn t recognize that the pilot light is lit it won t engage the furnace or shut down shortly after starting. If your furnace does not have a pilot light move on to the next step. Burners will not light. My gas furnace pilot light will not light.

However even many modern furnaces still run pilot lights. If gas or propane flow to this pilot light is interrupted even for a moment the pilot light can go out and will need to be relit. The pilot light or ignition sensor is usually the most common issue when your furnace will not ignite. Also check to make sure power to the furnace is on.