How do I know the board is actually bad?

Most boards that get replaced were not the problem. Check the cheap things first: the 3 amp fuse on the board, a tripped rollout or limit, a plugged condensate switch, a bad ground, and low incoming voltage. Goodman's own manual says the board should only be replaced after everything else on the troubleshooting chart has been verified.

What does the flash code mean?

Read it off the label on YOUR board, not off a chart you found online. Flash codes are not standardised between manufacturers - six flashes means reversed polarity or a poor ground on a Trane and an open rollout or blown fuse on a Goodman, and 7 and 8 are swapped between them as well.

Is there a universal replacement?

Sometimes, and often not. Real universal furnace boards come from only a few makers - ICM, White-Rodgers/Copeland and Resideo. If your number is not on their published list, the honest answer is the OEM board. We will not invent a cross for a control board.

If I fit a universal, is it just the board?

No. A universal ships with a set of harnesses and you have to pick the right one for your OEM number, and the DIP switches set the safety timings. Fitting the board without configuring it leaves the furnace running its safeties on the wrong clock.

Do you test boards at the counter?

Not fully. We will not run a complete diagnostic on communicating equipment or mimic a whole gas furnace ignition cycle - anyone who tells you they can is guessing. Bring the furnace model and the flash code and we will help you work out whether the board is really the failure.

Do you have my board?

Come to 10226 Plano Rd, Suite 104 in Dallas with the model number off the furnace and the number off the board itself.

Low Stock

Universal

LB-91097C – IGNITION CONTROL REPLACEMENT KIT (17W82)

Name: LB-91097C - IGNITION CONTROL REPLACEMENT KIT (17W82)
Brand: Universal
SKU: 17W82
Price: 540.00 USD
Availability: InStoreOnly

SKU 17W82·Replaces 17W8201, 21L890, 21L8901 +2

$540.00

In-store price · paid at counter

Low Stock at our Dallas counter

Tested before you leave. Free at the counter.

In-Store Only — We Don’t Ship

Every part is sold in person at our Dallas counter. No shipping, no online orders. Solo venta en tienda — no hacemos envíos.

Visit our Dallas counter to purchase

10226 Plano Rd, Suite 104 · Dallas TX 75238

Call (214) 340-9421 Get directions

Open now · Closes 7pm·Mon–Fri 10am–7pm · Sat 10am–3pm

Free part testingBench-tested at the counter

27,000+ in stockToday, on the shelf

4.9 · 546 reviewson Google

Since 199828 years on Plano Rd

Pro tip

Before you buy a board, check the 3 amp fuse on it, the rollout and limit switches, the condensate switch and the ground. Most boards that get replaced were never the failure. And read the flash code off the label on your own board - the codes are not the same between brands.

Free Part Testing

27,000+ In Stock

4.9 Stars · 546+ Reviews

Since 1998

🏪 In-Store Pickup Only — We do not offer shipping or online ordering. Visit our Dallas location to purchase.

In Stock

Visit our Dallas store to purchase

Call (214) 340-9421 Get Directions

In Stock — Pick Up at Our Dallas Store

10226 Plano Rd, Suite 104, Dallas TX 75238

Questions? Call or text (214) 340-9421

Mon–Fri 10 am – 7 pm | Sat 10 am – 3 pm

Symptoms of failure

No response at all when the thermostat calls
Board LED flashes a fault code, or shows nothing
Blower or inducer runs constantly and will not stop
Visible scorch marks, a blown fuse or a bulged capacitor on the board
Furnace works intermittently with no pattern
Relays on the board click but nothing downstream energizes

Seeing these does not always mean this part is the culprit. Bring the old one in and we will meter it at the counter, free, before you buy.

If your furnace won’t ignite, shows error codes, or the blower won’t start, the control board controls all of it. The 17W82 is a Lennox ignition control replacement kit that comes with everything needed to swap out older Lennox furnace boards. Includes wiring harness and hardware for a complete installation.

Specs: Complete replacement kit with harness, OEM Lennox

Replaces: 17W82, 21L890, 37K56, 72K79

Fits: Lennox furnaces requiring LB-91097C ignition control kit

Need help? See our Furnace Not Heating Guide.

In stock at Open To Public HVAC Parts in Dallas. We test parts at the counter before you buy. Call or text (214) 340-9421.

Specs

TypeIgnition control replacement kit
Brand familyLennox
Replaces17W82
ApplicationGas furnace
Before replacingCheck the board fuse, rollout and limit switches, condensate switch and ground first

Installing it yourself

Difficulty 4/5Typical time 45-90 minutes

Power off at the furnace switch and confirm 0V.
Photograph EVERY connector before you unplug anything. This is the step people skip and regret.
Check the obvious first - a blown 3A fuse, a tripped rollout, a bad ground. Most boards that get replaced were not the problem.
Unplug connectors one at a time and move them to the new board as you go.
If you are fitting a universal board, the harness and the DIP switch settings are part of the job - those switches set the safety timings.
Match the flash-code chart on the new board's label, not the old one. Codes are not standardised between brands.
Restore power and watch a full heat cycle end to end before closing up.
We do not run full diagnostics on boards at the counter, but bring the furnace model and the flash code and we will help you work out whether the board is really the failure.

Power off at the disconnect first, every time. Not sure partway through? Bring it to the counter and we will walk it with you.

$540.00

Low Stock · Dallas counter

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