What causes Hitachi Air Conditioner to activate safety device from excessively low suction pressure?
- MMichael BrewerAug 26, 2025
If your Hitachi Air Conditioner activates the safety device from excessively low suction pressure, inspect refrigerant levels and piping for blockages. This issue is often due to a shortage or leakage of refrigerant, piping clogging, a closed expansion valve, or a locked fan motor.