The ignition is one of
the key components of an HVAC system’s furnace. The fuel used for
heating passes through the igniter, which lights it on the way to the
combustion chamber. Contemporary furnace igniters are split into hot
surface or intermittent pilot types. However, the part may sometimes
act up over its operational lifetime, warranting a solution to get it
back in the burn.
The troubleshooting
should begin by shutting down the thermostat and turning off the
circuit breakers linked to the furnace. You will also have to turn
off the furnace’s emergency switch and the utility connections for
added measure, and then open the burner access door. The igniter is
usually located near the flame sensor and the main furnace assembly.
Once in, you need to
unscrew the igniter housing and inspect the part itself. Some HVAC
specialists state that one sure sign of a faulty igniter is when its
tip is discolored or cracked, which may be the case in hot-surface
igniters, which have a heating coil similar in shape to that of the
filament in incandescent light bulbs.
Your contractor may
help with the igniter replacement if you are unsure how to do it. The
part number or model number is usually imprinted on the igniter. A
faulty igniter is not the end of the world. Your furnace’s warranty
will help cover its replacement.
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