Tag: outdoor-coil-thermistor-error

All the articles with the tag "outdoor-coil-thermistor-error".

• Mitsubishi P3 Error Code — Outdoor Coil Thermistor Fix

  21 May, 2026

  A Mitsubishi P3 means the outdoor unit's coil thermistor (typically TH4, sometimes labeled TH-7 or TH-DEFROST depending on platform) is reading outside the...