# How to Replace an Automatic Spark Ignitor on Rheem Furnaces
Things You'll Need
- Screwdriver set
Instructions
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1
Shut off the furnace at the wall thermostat and wait for the unit to cool. When the furnace reaches room temperature, cut the electrical power at the circuit breaker.
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2
Unscrew and remove the access panel on the front of the Rheem. Locate the igniter in front of the gas valve. The igniter is a rectangular, enameled wire with a prong in the center, mounted on an opaque case. The case connects to a pair of wires plugged into a socket behind the igniter.
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3
Unplug the igniter's power plug from the socket.
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4
Loosen the screw in the L-shaped metal bracket holding the igniter in position.
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5
Hold the new igniter in the same direction as the old part and secure it to the bracket with the screw.
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6
Connect the new igniter's power plug to the socket.
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7
Reattach the access panel to the front of the Rheem.
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8
Turn on the circuit breaker before switching on the Rheem at the wall thermostat.
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1
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