Keep your M1SB 086A BW furnace running efficiently with genuine OEM replacement parts from Repair Clinic. The M1SB 086A BW is a 86,000 BTU input, 80% AFUE non-condensing gas furnace from Nordyne. The M1SB designation identifies a Nordyne multi-position upflow or horizontal gas furnace. The 086A identifies approximately 86,000 BTU capacity and BW identifies the cabinet configuration. The igniter, flame sensor, blower motor, and control board account for the majority of service calls. Repair Clinic stocks genuine Nordyne OEM parts for the M1SB 086A BW including the Nordyne igniter parts, Nordyne flame sensor parts, Nordyne blower motor parts, and Nordyne control board parts. Browse the Nordyne furnace parts catalog filtered by M1SB 086A BW for the complete parts inventory.
M1SB 086A BW: 86,000 BTU, 80% AFUE Non-Condensing Gas Furnace Service
Reading the control board LED blink code before ordering any component is the required first diagnostic step. Annual flame sensor cleaning prevents most nuisance lockouts. The Nordyne furnace troubleshooting guide covers fault code blink patterns for Nordyne furnace platforms.
Most Replaced Parts on the M1SB 086A BW
Hot Surface Igniter for the M1SB 086A BW
Testing resistance at room temperature confirms failure in under two minutes.
M1SB 086A BW Flame Sensor
Annual cleaning with fine steel wool prevents most early-season nuisance lockouts.
Blower Motor for the M1SB 086A BW
Test the run capacitor before ordering a replacement blower motor. A failing capacitor produces the same slow-start symptom at a fraction of the motor replacement cost.
M1SB 086A BW Control Board
Read and document the LED blink code before ordering any replacement.
Why Choose Repair Clinic for M1SB 086A BW Parts
- Genuine Nordyne OEM Components: Igniters, flame sensors, and blower motors confirmed for the M1SB 086A BW 86,000 BTU platform Nordyne furnace parts.
- Fault Code Diagnostic Resources: The Nordyne furnace troubleshooting LED blink code chart is available alongside every part listing.
- Non-Condensing B-Vent Context: This Nordyne furnace uses standard metal B-vent and produces no condensate.
- 365-Day Returns: Return any uninstalled Nordyne part within a full year of purchase with no restocking fees.
M1SB 086A BW Furnace Parts FAQ
What is the BTU output and efficiency of the M1SB 086A BW?
The M1SB 086A BW is a 86,000 BTU input, 80% AFUE non-condensing gas furnace from Nordyne. The M1SB designation identifies a Nordyne multi-position upflow or horizontal gas furnace. The 086A identifies approximately 86,000 BTU capacity and BW identifies the cabinet configuration. It uses standard metal B-vent and produces no condensate.
What type of venting does this Nordyne furnace require?
Standard metal B-vent. Non-condensing Nordyne furnaces produce no condensate and do not use PVC venting.
My M1SB 086A BW ignites and shuts off within seconds. What is wrong?
This is the flame sensor symptom. Annual cleaning with fine steel wool prevents most occurrences on this Nordyne platform.
What does the multi-position designation mean on the Nordyne M1SB 086A BW?
The M1SB designation identifies a multi-position furnace that can be installed in either an upflow or horizontal configuration depending on the installation requirements. The cabinet and heat exchanger are designed to function correctly in both positions.
