Dometic Atwood 2-Stage Furnace Ignition Control Board | 34109

Restore reliable ignition on your Atwood 2-stage furnace with the Dometic 34109 Ignition Control Circuit Board. Genuine Dometic OEM replacement ignition control board specifically engineered for Atwood 2-stage furnace models 1522, 2334, and 2540.

What This Board Does

The 34109 ignition control circuit board is the central ignition brain of your Atwood 2-stage furnace. It manages the ignition sequence, flame monitoring, and safety lock-outs — critical to safe and reliable furnace operation.

⚠️ For 2-Stage Atwood Furnaces ONLY

Important compatibility note: this board is engineered specifically for Atwood 2-STAGE furnaces — the 1522, 2334, and 2540 models. Single-stage Atwood furnaces use a different ignition control board and are NOT compatible with this part.

Compatible Atwood 2-Stage Furnace Models

• 1522
• 2334
• 2540

Verify your existing furnace is one of these specific 2-stage models before ordering.

Different Atwood Furnace Configuration?

For single-stage Atwood/Dometic Hydro Flame furnaces, different ignition control boards are available:

• Dometic Atwood 31501 Hydro Flame Igniter Control Board — DC (12V) — broad Atwood/Dometic compatibility (7912/7916/7920, FA-series, 8500/8900 series, AFSD, AFMD, DFMD, DFSD series)
• Dometic Atwood 30621 AFL Igniter Control Board — AC (120V) — Park Model AFL furnaces (AFLA35/40 series)

Cross-Reference Part Numbers

• Part Number: 34109

⚠️ Professional Installation Required

Installation involves 12V DC electrical wiring, gas system integration, and ignition system connections. Because of the safety-critical nature of furnace ignition control components, installation should be performed by a qualified RV service technician. Improper installation can result in gas leaks, ignition failures, or fire/explosion hazards.

1-Year Limited Manufacturer Warranty

Genuine Dometic OEM

Key Features

• Genuine Dometic OEM ignition control circuit board
• Part number: 34109
• For Atwood 2-STAGE furnaces ONLY
• Compatible models: 1522, 2334, 2540
• NOT compatible with single-stage Atwood furnaces
• Backed by 1-year limited manufacturer warranty

Specifications

• Brand: Dometic (Atwood)
• Part Number: 34109
• Type: Ignition Control Circuit Board
• Furnace Type: 2-Stage
• Compatible Furnace Models: Atwood 1522, 2334, 2540
• NOT Compatible With: Single-stage Atwood furnaces (use 31501 for DC or 30621 for AC AFL Park Models instead)
• Warranty: 1-year limited manufacturer warranty