Inducer Assembly Replacement Procedure
Begin your inducer assembly replacement, by ensuring the power is off to the furnace and the furnace
is cool. Then, you should mark the hose(s) and write down where they connect to on the inducer.
Then, you should mark the wires and write down where they connect to. Some inducers will have plug and
socket connectors while others do not. Most inducers, on 90% afue or more furnaces, also have a small
limit control mounted on the housing.
Next, the vent pipe should be disconnected. Then the condensate drain tube, on 90% or more units,
should be disconnected.
Then, the inducer assembly mounting screws can be removed. Finally, the assembly can be removed from
Continue your inducer assembly replacement by mounting the new unit in the furnace. On 80-90% afue
units, high temperature silicone or a high temp gasket is used to seal it.
**ENSURE THE GASKET IS INSTALLED**
On 90%+ afue units, there is usually a rubber gasket.
Then you should reconnect the wires, pressure switch hoses, and the condensate drain tube (on 90%+
units). Then reconnect the vent pipe.
You should complete your inducer assembly replacement by restoring power to the furnace. Observe a
complete heating cycle to verify proper operation.