Samsung Air Conditioner Error Code E232

Error code E232 on a Samsung air conditioner indicates a breakaway or open-circuit fault in the compressor discharge temperature sensor for the fixed compressor 1 on the main outdoor unit. The discharge temperature sensor monitors the temperature of refrigerant gas leaving the compressor. This data is critical to the control board's ability to protect the compressor from overheating and to regulate system operation under varying load conditions. When the sensor signal is lost or falls outside the expected range, the system flags E232 and may shut down the outdoor unit to prevent damage.

The most common cause of this fault is a physical separation between the sensor and its mounting holder on the compressor discharge line. Samsung's diagnostic guidance specifically directs technicians to check whether the sensor and its holder are correctly attached as the first step, which points to mechanical detachment as the primary failure mode. Vibration during compressor operation can gradually loosen the sensor from its clip or holder, causing intermittent or permanent loss of contact and an inaccurate or absent temperature reading.

Beyond physical detachment, the fault can also be triggered by a damaged sensor lead, a corroded or broken connector at the sensor harness, or a failed sensor element itself. In some cases, wiring damage from vibration, rodents, or environmental exposure can produce the same open-circuit condition. The control board interprets any signal outside the valid temperature range as a breakaway fault and logs E232.