HVAC Refrigeration Guide — Heat Controller

Furnace Won't Ignite? How to Diagnose a Draft Inducer Failure

Aug 09, 2026

If a gas furnace won't start or locks out before the burners light, the draft inducer is one of the first components to check. This guide covers how to confirm an inducer failure — symptoms, voltage checks, and confirmed OEM replacement parts for York, Heat Controller, Modine, and more — before you order the wrong part.

Tags: blower motor, combustion air blower, draft inducer, Fasco A238, furnace diagnosis, furnace lockout, furnace won't ignite, Heat Controller, HVACR parts, inducer motor, Modine inducer, OEM replacement, pressure switch, S1-373-20830-001, York inducer

Nordyne Parts Field Guide

May 20, 2026

Nordyne parts fail in predictable patterns — control boards, draft inducer motors, pressure switches, and run capacitors top the list. This field guide covers diagnostics, OEM part numbers, and failure sequences across Frigidaire, Gibson, Westinghouse, and other Nordyne-platform brands.

Tags: Air Conditioner, Comfort-Aire, Control Boards, Draft Inducer Motors, Fault Codes, Field Guide, Frigidaire, Gas Furnace, Gibson, Heat Controller, Heat Pump, HVAC Diagnostics, IFC Board, Nordyne, OEM Parts, Pressure Switches, Run Capacitors, Tappan, Technician Resources, Westinghouse