Challenger Blower
Replacement Kit
2
1. Removal of Blower
1. Turn off power to the unit at the main service
switch.
2. Close the external gas shut off valve to the appli-
ance.
3. Remove the front panel by flipping down the dis-
play cover and loosening the (2) Phillips head
screws at the control panel as per Fig. 1. Pull bot-
tom of front panel forward to remove.
Fig. 1: Control Panel Screws
4. Disconnect the two wire harness plugs from the
blower motor.
BEST PRACTICE
For ease of service, remove the vent pipe between the
vent adapter and the condensate drain pan before re-
moving the blower. To remove the vent pipe, loosen the
vent pipe retaining ring attaching it to the condensate
pan then slide the pipe up and out of the condensate
pan. Pull the vent pipe out and down to remove.
5. Loosen the gas pipe brass nut at the gas valve. Set
aside the orifice and o-ring for reinstallation. See
Fig. 2
Fig. 2: Gas Orifice location
NOTICE
Do not discard the gas orifice and gasket as they will be re-
used.
6. Remove the (2) M5 flange nuts attaching the blow-
er to the burner assembly with an 8 mm socket or
wrench.
7. Remove the blower assembly from the Challenger
by pulling downward and out.
NOTICE
If the blower gasket sticks to the burner assembly, use a flat
blade putty knife to remove any gasket material. Make sure
not to scratch the mating surface on the burner assembly.
8. For Challenger models 85 and 105 only, remove the
blower orifice and save to be reinstalled.
See Fig. 3
.
