Codes that name it
Amana
- Amana furnace EE2:
Blocked flue and/or inlet air pipe, blocked drain, or weak induced draft blower
Amana and Goodman *CVC96 / *MVC96 two-stage furnace installation instructions (IOG-2015L) (opens in a new tab) ↗ - Amana furnace EE9:
Induced draft blower performance problem
Amana and Goodman *CVC96 / *MVC96 two-stage furnace installation instructions (IOG-2015L) (opens in a new tab) ↗
American Standard
- American Standard furnace E3.2:
The heating sequence says the inducer starts and pressure switch 1 should then close. If a thermal limit is open, the guide says 24 VAC will not be present at either pressure switch
American Standard S9V2 installer's guide (18-CE01D1-1E-EN) (opens in a new tab) ↗ - American Standard furnace E09:
Inducer limit switch open
American Standard S9V2 installer's guide (18-CE01D1-1E-EN) (opens in a new tab) ↗
Bryant
- Bryant furnace 32:
Defective inducer motor or a low 115 V supply to the inducer
Bryant 80% variable-speed two-stage furnace troubleshooting guide (Catalog No. TG-GFB80-02) (opens in a new tab) ↗ - Bryant furnace 42:
Inducer did not start within 20 seconds of a call for heat
Bryant 987MA Series A modulating furnace troubleshooting guide (Form 987MA-01T) (opens in a new tab) ↗
Carrier
- Carrier furnace 31:
Defective inducer motor or low inducer voltage
Carrier 59SC5 installation, start-up and operating instructions (opens in a new tab) ↗
Goodman
- Goodman furnace EE2:
Weak induced draft blower
Goodman GR9S96/GD9S96 installation and operating guide (IOG-2037B) (opens in a new tab) ↗
Lennox
- Lennox furnace Red off, green slow flash:
Pressure switch closed prior to inducer activation
Lennox ML180UH installation and operation manual (opens in a new tab) ↗
Rheem
- Rheem furnace 33:
Technician: check pressure switches, inducer rpm, vent length and obstructions, gaskets
Rheem R96V installation instructions (92-24161-124-03) (opens in a new tab) ↗ - Rheem furnace 44:
Low pressure switch closed with inducer off.
Rheem R96V installation instructions (92-24161-124-03) (opens in a new tab) ↗ - Rheem furnace 45:
Faulty or disconnected inducer
Rheem R96V installation instructions (92-24161-124-03) (opens in a new tab) ↗ - Rheem furnace 46:
Faulty or disconnected inducer
Rheem R96V installation instructions (92-24161-124-03) (opens in a new tab) ↗ - Rheem furnace 57:
Faulty or disconnected inducer
Rheem R96V installation instructions (92-24161-124-03) (opens in a new tab) ↗
Trane
- Trane furnace E3.2:
Inducer motor not running
Trane S9V2 Service Facts (S9V2-SF-2A-EN) (opens in a new tab) ↗ - Trane furnace E3.4:
Inducer motor not running
Trane S9V2 Service Facts (S9V2-SF-2A-EN) (opens in a new tab) ↗ - Trane furnace E09:
Incorrect inducer limit switch installed
Trane S9V2 Service Facts (S9V2-SF-2A-EN) (opens in a new tab) ↗ - Trane furnace E10:
Communication error between the inducer and blower-motor microprocessors
Trane S9V2 Service Facts S9V2-SF-2A-EN (04 Mar 2021), troubleshooting section. Read 2026-11-07 (opens in a new tab) ↗
York
- York furnace 3 red flashes:
Faulty inducer
York TG9S installation manual (Johnson Controls 1083287-UIM-C-0715) (opens in a new tab) ↗ - York furnace 5 red flashes:
Inducer not operating properly
York TG9S installation manual (Johnson Controls 1083287-UIM-C-0715) (opens in a new tab) ↗ - York furnace 6 red flashes:
Faulty inducer
York TG9S installation manual (Johnson Controls 1083287-UIM-C-0715) (opens in a new tab) ↗
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Unplug the furnace or switch it off at the breaker, and shut off the gas supply where relevant, before you open any panel. Capacitors can hold a charge after power is off. Gas, electrical-panel, refrigerant and carbon-monoxide work belongs to a licensed professional. Follow the manual for your model (safety terms).