Carrier Carrier 25VNA Infinity Greenspeed Variable-Speed Heat Pump CODE-32 Error Fix: Infinity Code 32 — Low-Pressure Protection

Error code CODE-32 on the Carrier Carrier 25VNA Infinity Greenspeed Variable-Speed Heat Pump means: Infinity Code 32 — Low-Pressure Protection. The Infinity System Control displays "Code 32" indicating the outdoor unit has shut down due to low suction pressure. Low pressure means insufficient refrigerant is flowing through the evaporator coil. Causes: (1) Low refrigerant charge from a leak — the most common cause. The system needs a leak test and repair. (2) Dirty air filter or restricted indoor airflow — insufficient air across the evaporator coil reduces heat absorption, causing the coil to get too cold and pressure to drop. (3) TXV stuck closed or restricted — not enough refrigerant is entering the evaporator. (4) Ice on the evaporator coil — if the coil ices over (from a dirty filter, low charge, or blower issue), airflow stops and pressure drops rapidly. (5) Kinked or restricted liquid line. On Greenspeed variable-speed systems, the compressor will slow down to try to maintain safe pressures — Code 32 means the system could not compensate even at the lowest speed. Have a technician measure superheat and subcooling to pinpoint the cause.

The most successful fix is "Perform Refrigerant Leak Test and Repair" (hard difficulty, ~120 minutes). Estimated DIY cost: $0-$20. HomeMD has 2 community-ranked fixes for this error.

This error is rated high severity. You should address it promptly — continued use could cause damage or safety concerns.

Yes — the top-ranked community fix ("Perform Refrigerant Leak Test and Repair") is rated hard difficulty and takes about 120 minutes. Tools needed: Electronic refrigerant leak detector, Vacuum pump, Manifold gauge set, Brazing torch, Safety goggles, Gloves.

DIY cost: $0-$20. Professional repair typically costs $300-$600. Many homeowners save money by trying the top-ranked community fix first.

The Carrier Carrier 25VNA Infinity Greenspeed Variable-Speed Heat Pump has 8 other known error codes, including: CODE-11 (Infinity Code 11 — No Heat / Heating Call Not Satisfied), CODE-12 (Infinity Code 12 — No Cooling / Call Not Satisfied), CODE-31 (Infinity Code 31 — High-Pressure Protection), CODE-33 (Infinity Code 33 — Outdoor Coil Thermistor Open/Short), CODE-34 (Infinity Code 34 — Indoor Coil Thermistor Issue), and 3 more.

Error code CODE-32 also appears on 1 other Carrier model: Carrier 26VNA1 Infinity 21 Variable-Speed Air Conditioner with Greenspeed Intelligence. The fix may vary by model, so check each model's specific page for tailored repair steps.