Shipping all 7 days! Hold times are long. Already ordered? Email [email protected]Learn more

Lennox Furnace Not Working? Control Board Replacement #94W83

03:26
80k
163
Furnace not working? This video provides step-by-step instructions for replacing the control board on Lennox furnaces. The most common reason for replacing the control board is when the furnace will not operate at all, but other more common problems have already been checked.

All of the information in this control board replacement video is applicable to the following brands: Lennox

Tools needed: 1/4 inch socket, needle nose pliers

Connect With Us!

Step By Step Instructions

1
Before you replace the control board in your furnace first turn off the power to the furnace.
2
Unthread the retaining knobs securing the upper access panel and remove the panel.
3
Use a quarter-inch socket or nut driver to unthread the mounting screws securing the lower access panel.
4
Lift the panel up to remove.
5
Prepare the new control board for installation by transferring all of the wires from the old board to the new one.
6
Next, use the quarter inch socket or nut driver to loosen the screws securing the control board mounting panel.
7
Slide the panel forward to detach.
8
Use needle-nose pliers to depress the tabs to release the old control board mounting pins.
9
Now align the new board on the panel and snap the mounting pins into place.
10
Reposition the panel on the support and tighten the screws to secure.
11
Replace the lower access panel by aligning the bottom edge first.
12
Thread and tighten the screws to secure.
13
Realign the top edge of the upper access panel then thread the retaining knobs to secure.
14
With the repair completed turn the power back on and your furnace should be ready for use.
Description
Furnace not working? This video provides step-by-step instructions for replacing the control board on Lennox furnaces. The most common reason for replacing the control board is when the furnace will not operate at all, but other more common problems have already been checked.

All of the information in this control board replacement video is applicable to the following brands: Lennox

Tools needed: 1/4 inch socket, needle nose pliers

Connect With Us!
Step-By-Step Instructions
1
Before you replace the control board in your furnace first turn off the power to the furnace.
2
Unthread the retaining knobs securing the upper access panel and remove the panel.
3
Use a quarter-inch socket or nut driver to unthread the mounting screws securing the lower access panel.
4
Lift the panel up to remove.
5
Prepare the new control board for installation by transferring all of the wires from the old board to the new one.
6
Next, use the quarter inch socket or nut driver to loosen the screws securing the control board mounting panel.
7
Slide the panel forward to detach.
8
Use needle-nose pliers to depress the tabs to release the old control board mounting pins.
9
Now align the new board on the panel and snap the mounting pins into place.
10
Reposition the panel on the support and tighten the screws to secure.
11
Replace the lower access panel by aligning the bottom edge first.
12
Thread and tighten the screws to secure.
13
Realign the top edge of the upper access panel then thread the retaining knobs to secure.
14
With the repair completed turn the power back on and your furnace should be ready for use.

Applicable Product Model

Parts Needed
Total$0.00

Related Articles & Videos