The bearings in the furnace s motor will click when they become worn.
Furnace gas valve clicking on and off.
Just as a gas stove clicks as it fires up your furnace makes a clicking noise too.
Here s what we look for when a furnace makes a clicking sound at the main unit.
This could indicate a dangerous gas leak or clogged gas valve.
If it continues for a minute or longer the igniter needs cleaning or repair.
So if the gas valve is shut the spark igniter has nothing to ignite and just keeps sparking.
If a gas furnace runs and then shuts off or short cycles this indicates an inconsistent flow of gas.
The common sources of a furnace clicking sound are.
Gas valve a broken jammed or clogged valve may fail to let out gas.
This might be caused by faulty gas meter controls or the thermostat controls.
All of the above are issues a furnace technician needs to fix.
Bad connection between the board and the valve.
One time during the dark view it goes out and the pilot flame doesn t re appear.
Every time the gas valve clicks the pilot has gone out.
If the clicking noise persists or your furnace is still giving you no heat we can help.
You can always see the pilot lit when tit tries to start but when the gas valve goes out the pilot has been blown out.
Some causes of a shut gas valve include.
Irregular clicking sounds coming from the gas valve could also be a sign of insufficient voltage.
An electrician should test the voltage at the gas meter thermostat controls and the gas.
Gas valve isn t energized no gas no ignition.
In the final bright view the pilot never goes out and the flame never goes out.
Dirty or clogged igniter.
Flame sensor or thermocouple this part senses the presence of a flame and tells the gas valve to open.
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Clicking from gas furnaces often indicates a problem with the gas valve or ignitor and you certainly don t want a gas leak.
The gas valve is clicking on and off while system is asking for heat.
Leaving the issue unaddressed will cause the motor will burn out.
The ignitor will keep clicking as it tries to spark a flame.