Carrier error codes (page 2)
37 documented codes with ranked causes, repair costs, and step-by-step guidance.
Carrier heat pump code chart (6) Carrier furnace code chart (30)
Carrier Furnace — Code 22 Carrier Furnace Code 22: Abnormal Flame-Proving Signal Carrier Furnace Code 22 means flame is sensed with the gas valve off. Causes, safe checks, technician diagnosis and repair costs explained. Carrier Furnace — Code 32 Carrier Furnace Code 32: Low-Pressure Switch Fault & Fixes Carrier Furnace Code 32 means the low-stage pressure switch did not close or reopened. Causes, fixes and repair costs from $0 DIY to $1,200+. Carrier Furnace — Code 42 Carrier Furnace Code 42: Inducer Motor Fault & Fixes Carrier Furnace Code 42 means an inducer motor fault. Learn the causes, safe checks, technician diagnosis and repair costs from $0 DIY to $1,200. Carrier Furnace — Code 43 Carrier Furnace Code 43: Pressure Switch Calibration Fault Carrier Furnace Code 43 means a pressure switch calibration fault. Causes: venting, tubing, inducer, switch. Fixes and US repair costs inside. Carrier Furnace — Code 44 Carrier Furnace Code 44: Blower Calibration Fault & Fixes Carrier Furnace Code 44 means a blower motor calibration fault on variable-speed boards. Causes, safe checks, fixes and repair costs explained. Carrier Furnace — Code 45 Carrier Furnace Code 45: Control Circuitry Lockout Fix Carrier furnace Code 45 means a control circuitry lockout from flame-sense, software, or gas-valve relay faults. Causes, fixes and repair costs. Carrier Furnace — Code 14 Carrier Furnace Code 14: Ignition Lockout Causes & Fixes Carrier Furnace Code 14 means ignition lockout after failed heat trials. Causes, safe checks, technician diagnosis and repair costs $0-$600. Carrier Furnace — Code 41 Carrier Furnace Code 41: Blower Motor Fault & Fixes Carrier Furnace Code 41 signals a blower motor fault. Learn causes, safe checks, diagnosis and repair costs from $0 DIY to $700 for a new motor. Carrier Air Conditioner — Not cooling Carrier AC Not Cooling: Causes, Fixes & Repair Costs Carrier AC not cooling? Causes include dirty filters, low refrigerant, failed capacitors and frozen coils. DIY checks plus repair costs from $0 to $2,500+. 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.