ICM Controls ICM2818 - Furnace Control Board — Replacement Module for Select Nordyne Manufactured-Housing Furnaces
ICM Controls ICM2818 - Furnace Control Board — Replacement Module for Select Nordyne Manufactured-Housing Furnaces
ICM-ICM2818 Furnace Control Board — Replacement Module for Select Nordyne Manufactured-Housing Furnaces
Upgrade or replace a failed furnace board with the ICM-ICM2818. This American-made control safely manages the inducer, hot-surface ignitor, gas valve, flame sense, and circulating blower, while monitoring system safeties and displaying diagnostic fault codes via on-board LEDs. Designed as a form-fit-function replacement for specific Nordyne OEM boards, it restores reliable ignition and blower timing in many manufactured-housing furnaces.
Key features
- Direct replacement for select Nordyne boards; preserves original operating sequence and timings
- On-board diagnostic LED fault codes for faster troubleshooting
- Built-in safety logic with timed lockout after repeated ignition failures
- Controls inducer, HSI, gas valve, flame sense, and blower speeds
Technical specifications
- Input power: 120 VAC, 60 Hz; control voltage: 18–30 VAC
- Blower motor outputs: up to 3/4 HP @ 120 VAC (models M1MA–M1MD by tonnage)
- Inducer: 1/100 HP (0.69 A) @ 120 VAC
- HSI: 6.0 A @ 120 VAC (resistive)
- Gas valve: 0.5 A @ 24 VAC (resistive)
- Fuse rating: 3 A; relay contact ratings: Heat 12 FLA/30 LRA @ 120 VAC, Cool 13.8 FLA/36 LRA @ 120 VAC
- Environmental: -40° to 80 °C operating; 5–95% RH (non-condensing)
- Board size: 5.75" L × 4.3" W × 0.50" D
Operating sequence highlights
- Inducer pre-purge ~45 s before ignition
- Post-purge ~30 s after heat call ends
- Blower off-delay ~120 s for heat mode (comfort & heat-extraction)
Cross-reference / replaces
Nordyne: 903429, 624602, 624640, 1012-93-9581A, 1012-012-958A, 233089. (OEM part numbers used for identification only.)
What’s included
- ICM-ICM2818 control board
- Installation/operation guide (wiring, timings, LED codes)
Installation notes
Professional installation is recommended. Always de-energize equipment, follow ESD precautions, and verify furnace model/serial compatibility with the cross-reference list and wiring diagram before powering on.
OEM replacement Nortek 903429 (Interthem/Nordyne/Miller/Revolv: 624602, 624640, 1012-93-9581A, 1012-012-958A, 233089)
| Package Quantity | 1 Item |
|---|---|
| Item Returns | This item can be returned |
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