Furnace error codes (page 8)
178 documented codes across brands, with ranked causes and repair costs.
Rheem furnace code chart (13) York furnace code chart (21) Goodman furnace code chart (24) Lennox furnace code chart (34) Trane furnace code chart (23) Carrier furnace code chart (30) Amana furnace code chart (9) American Standard furnace code chart (8) Bryant furnace code chart (16)
Bryant Furnace — Code 13 Bryant Furnace Code 13: Meaning, Causes & Fixes Bryant furnace Code 13 means a limit circuit lockout. Learn causes, safe checks, technician diagnosis and repair costs from $0 DIY to $600. Bryant Furnace — Code 33 Bryant Furnace Code 33: Meaning, Causes & Fixes Bryant furnace Code 33 means a limit or flame rollout switch tripped. Causes, safe checks, and pro repair costs from $0 to $600. Carrier Furnace — Code 13 Carrier Furnace Code 13: Meaning, Causes & Fixes Carrier furnace Code 13 means a limit circuit lockout. Causes: dirty filter, blocked vents, bad blower. Fixes cost $0 DIY to $600+. Carrier Furnace — Code 31 (pressure switch) Carrier Furnace Code 31: Causes, Fixes & Costs Carrier furnace flashing code 31 (pressure switch/inducer fault)? What it means, causes ranked by likelihood, safe checks, and repair costs. Carrier Furnace — Code 33 Carrier Furnace Code 33: Causes, Fixes & Costs Carrier furnace flashing code 33 (limit circuit fault)? What it means, the causes ranked by likelihood, safe checks you can do, and repair costs. Carrier Furnace — Code 34 Carrier Furnace Code 34: Ignition Proving Failure & Fixes Carrier furnace Code 34 means ignition proving failure. Causes, safe checks and pro fixes — flame sensor, gas valve, $0 DIY to $600 repair. Goodman Furnace — Flame rollout / burning smell Goodman Furnace Flame Rollout: Shut Down Now Goodman furnace flame rollout switch tripped or a burning smell? Why this is an emergency, what to do right now, the CO risk, and repair costs. Goodman Furnace — Lockout (no heat) Goodman Furnace Lockout: Causes, Fixes & Costs Goodman or Amana furnace in ignition lockout with no heat? What it means, causes ranked, the dirty flame sensor fix, safe checks, and repair costs. Lennox Furnace — Code 200 (ignition lockout) Lennox Furnace Code 200: Causes, Fixes & Costs Lennox furnace showing code 200 ignition lockout with no heat? What it means, causes ranked, the flame-sensor fix, safe checks, and real repair costs. Trane Furnace — Code 90 (2 blinks) Trane Furnace Code 90 (2 Blinks): Causes & Costs Trane or American Standard furnace flashing code 90 / 2 blinks? What this inducer and pressure-switch fault family means, safe checks, and repair costs.