Heat Pump error codes
90 documented codes across brands, with ranked causes and repair costs.
Goodman heat pump code chart (15) Lennox heat pump code chart (15) Trane heat pump code chart (15) York heat pump code chart (15) Carrier heat pump code chart (15) Rheem heat pump code chart (15)
Goodman Heat Pump — Runs constantly Goodman Heat Pump Runs Constantly: Causes, Fixes & Costs Goodman heat pump runs nonstop? Learn the causes (sizing, low charge, dirty coils, stuck contactor), safe fixes, and repair costs from $0 to $3,500. Lennox Heat Pump — Runs constantly Lennox Heat Pump Runs Constantly: Causes, Fixes & Costs Lennox heat pump running nonstop? Learn the causes (low charge, dirty coils, stuck contactor, sizing), safe checks, and repair costs from $0 to $3,000. Trane Heat Pump — Runs constantly Trane Heat Pump Runs Constantly: Causes, Fixes & Costs Why a Trane heat pump runs nonstop: sizing, low charge, dirty coils, stuck contactor, thermostat issues. Safe checks, tech diagnosis and $0 to $2,500+ costs. York Heat Pump — Runs constantly York Heat Pump Runs Constantly: Causes, Fixes & Costs York heat pump runs nonstop? Learn the causes (dirty filter, low charge, stuck contactor, sizing) plus safe fixes and repair costs from $0 to $2,500+. Carrier Heat Pump — Flashing light Carrier Heat Pump Flashing Light: Causes, Fixes & Costs Carrier heat pump flashing light explained: what the flash codes mean, likely causes like pressure or sensor faults, safe fixes, and repair costs. Carrier Heat Pump — Runs constantly Carrier Heat Pump Runs Constantly: Causes, Fixes & Costs Carrier heat pump running nonstop? Learn the causes, from dirty filters to low refrigerant and stuck contactors, plus safe fixes and repair costs. Goodman Heat Pump — Flashing light Goodman Heat Pump Flashing Light: Meaning & Fixes Goodman heat pump flashing light explained: pressure switch lockouts, sensor faults and timers, with safe checks, repair options and costs ($0 to $2,500+). Lennox Heat Pump — Flashing light Lennox Heat Pump Flashing Light: Meaning, Causes & Fixes Lennox heat pump flashing light explained: what the board LED means, likely causes like pressure switch or sensor faults, safe checks, and repair costs. Rheem Heat Pump — Runs constantly Rheem Heat Pump Runs Constantly: Causes, Fixes & Costs Why a Rheem heat pump runs nonstop: cold-weather limits, airflow, low charge, or a stuck contactor. Safe checks, pro fixes, and costs from $0 to $2,500+. Rheem Heat Pump — Won't turn on Rheem Heat Pump Won't Turn On: Causes, Fixes & Costs Rheem heat pump won't turn on? Learn the likely causes (power, thermostat, float switch, control fuse), safe checks, and repair costs from $0 to $600+. Trane Heat Pump — Flashing light Trane Heat Pump Flashing Light: Meaning, Causes & Fixes Trane heat pump flashing light explained: what the outdoor board LED means, common causes like pressure and sensor faults, safe checks, and repair costs. York Heat Pump — Flashing light York Heat Pump Flashing Light: Meaning, Causes & Fixes York heat pump flashing light explained: pressure switch lockouts, sensor faults and airflow causes, safe checks, and repair costs from $0 to $2,500+. Carrier Heat Pump — Won't turn on Carrier Heat Pump Won't Turn On: Causes, Fixes & Costs Carrier heat pump won't turn on? Learn the likely causes (power, thermostat, float switch, control board), safe checks, and repair costs from $0 to $1,000+. Goodman Heat Pump — Won't turn on Goodman Heat Pump Won't Turn On: Causes, Fixes & Costs Goodman heat pump won't turn on? Learn the common causes, from tripped breakers to blown fuses and failed transformers, safe checks, and repair costs. Lennox Heat Pump — Loud noise Lennox Heat Pump Loud Noise: Causes, Fixes & Costs Lennox heat pump making loud noises? Learn what each sound means, likely causes from fan to compressor, safe checks, and repair costs from $0 to $2,500+. Lennox Heat Pump — Won't turn on Lennox Heat Pump Won't Turn On: Causes, Fixes & Costs Lennox heat pump won't turn on? Learn the likely causes (power, thermostat, low voltage, board, float switch), safe fixes and US repair costs. Rheem Heat Pump — Loud noise Rheem Heat Pump Loud Noise: Causes, Fixes & Costs Rheem heat pump making loud noise? Learn which sounds are normal, the likely causes (fan, compressor, contactor, refrigerant), safe checks, and repair costs. Trane Heat Pump — Won't turn on Trane Heat Pump Won't Turn On: Causes, Fixes & Costs Trane heat pump won't turn on? Learn the likely causes (power, thermostat, float switch, transformer, board), safe checks, and repair costs. York Heat Pump — Loud noise York Heat Pump Loud Noise: Causes, Fixes & Costs Why a York heat pump gets loud: fan, compressor, contactor, defrost and loose panel causes, safe homeowner checks, and honest repair costs. York Heat Pump — Won't turn on York Heat Pump Won't Turn On: Causes, Checks & Costs York heat pump won't turn on? Causes like tripped breakers, thermostat faults, float switches, fuses and boards, safe checks, and $0-$1,200 repair costs. Carrier Heat Pump — Loud noise Carrier Heat Pump Loud Noise: Causes, Fixes & Costs Carrier heat pump making loud noise? Learn the causes (defrost, fan, compressor, contactor), the safe checks you can do, and repair costs from $0 to $2,800+. Goodman Heat Pump — Compressor not running Goodman Heat Pump Compressor Not Running: Causes & Costs Goodman heat pump compressor not running? Learn the causes (capacitor, contactor, pressure switch, defrost board), safe checks and repair costs. Goodman Heat Pump — Loud noise Goodman Heat Pump Loud Noise: Causes, Fixes & Costs Goodman heat pump making loud noise? Learn causes like failing fan motors, compressor issues and loose panels, safe fixes, and repair costs. Lennox Heat Pump — Compressor not running Lennox Heat Pump Compressor Not Running: Causes & Fixes Lennox heat pump compressor not running? Learn the causes (capacitor, contactor, lockout, controls), safe checks, and repair costs from $0 to $3,500+.