D
David JohnsonAug 6, 2025
What to do if Hitachi RAS-4HRC2E has power supply failure?
- AAnn GrimesAug 6, 2025
If you are experiencing a power supply failure with your Hitachi Air Conditioner, try performing the start-up operations again.

What to do if Hitachi RAS-4HRC2E has power supply failure?
If you are experiencing a power supply failure with your Hitachi Air Conditioner, try performing the start-up operations again.
| Brand | Hitachi |
|---|---|
| Model | RAS-4HRC2E |
| Category | Air Conditioner |
| Language | English |
Warning about explosion risk from refrigerant gas mixtures in the cycle.
Unit contains R32, a flammable refrigerant; risk of ignition if leaked.
Instructions to stop the compressor before removing refrigerant pipes.
Check refrigerant amount per room volume to prevent danger from leaks.












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