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Tammy DanielsAug 6, 2025
What to do if ROYAL CLIMA Air Conditioner shows High-pressure protection error?
- BBill ThompsonAug 6, 2025
If your ROYAL CLIMA Air Conditioner displays a 'High-pressure protection' error, start by checking the connections of the plug-in terminals to ensure they are secure and that the terminals and the main PCB are properly connected. Use a multimeter to check for disconnections. Also, with a multimeter, verify the state of the high-pressure switch to ensure it is in the OFF state. If the pressure is normal but the switch remains open, the pressure voltage is likely faulty. Should the problem persist despite a normal pressure switch and intact connections, consider replacing the main PCB.
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