Tag: low-pressure-cutout

All the articles with the tag "low-pressure-cutout".

• Trane XV20i/XV18 Fault 126 — Low Pressure Cutout Fix

  21 May, 2026

  Fault 126 on a Trane XV20i, XV18, or XL20i variable-speed heat pump means the outdoor unit's low-pressure switch opened — refrigerant suction pressure...