Core Blower Replacement - 2100 Series

This procedure applies to the following part numbers:

• Item #1021035R Blower 2100/4100 240V Repl

• Item #1021036R Blower 2100 120V Repl

What's Included:

• Blower

• 1500 Ohm 50 Watt Resistor (2100 Series 240V Only)

• 250 Ohm 50 Watt Resistor (Model 2102-2103 120V Only)

Disconnect Power

Disconnect power to all branch circuits of the heater.

Remove Painted Panel

Remove painted front panel by removing the screws located on the bottom edge of the painted front panel.

Hinge the Right Side Panel

Hinge the right side panel open by a) removing the screw located above grill slats on the lower right side of the heater; b) loosening the screw located at top right corner of the electrical compartment; and c) pushing out on the right side panel. Reference Figure 1.

Disconnect Black Wire

At the base I/O relay board (Figure 2) in the back of the heater, disconnect the black wire from the “Blower” terminal.

240V Application Shown Above

(Refer to heater wiring diagram for 120V applications)

Disconnect White Wire

Disconnect the white blower wire from the white/blue jumper wire attached to L2 120 or L2 240 (depending on the application).

Disconnect Ground

Disconnect the green ground wire from the back, right side of the electrical compartment.

Remove Screw

Remove the screw holding the blower in place (Figure 3) and remove the existing blower.

Clean Chamber

Inspect and clean blower opening and damper actuator.

Install New Blower

Insert the new blower and secure into place with the screw (Figure 3).

Connect Ground

Reconnect the green ground wire.

Connect Wires

Connect the black blower wire to the “Blower” terminal on the base I/O relay board. Connect the white blower wire to white/blue jumper.

Check Resistor

Check the ohm value of the blower resistor in the heater. Blowers manufactured by different companies require different resistors. See table below for information on the resistor required for the application:

Replace Resistor

If necessary, replace the blower resistor (Figure 4).

Check Locations

Once the resistor value is verified, check the following locations and make sure they are set properly for the correct resistor. Click here for more information on how to access location values.

Reattach Front

Reattach the right side panel and reinstall the painted front panel.

Check Operation

Restore power to the heater and verify blower operation.