The EC 10 code 33 error on a Bonaire Navigator system indicates a problem with the system's pressure switch. The pressure switch is a device that monitors the pressure of the refrigerant in the system, and it's designed to shut down the system if there is a problem with the pressure.
The most common cause of this error is a malfunctioning pressure switch or a problem with the wiring between the switch and the control board. It could also be caused by a leak in the refrigerant system, which is causing the pressure to drop.
To troubleshoot this issue, I would recommend checking the following:
- Check the wiring between the pressure switch and the control board to make sure it's not loose or damaged.
- Check the pressure switch itself for any visible damage or malfunction.
- Check for leaks in the refrigerant system and fix them if any are found.
If you've checked all these things and the issue persists, it's likely that the pressure switch needs to be replaced. It's best to contact the manufacturer or a professional technician to do this, as it requires some technical knowledge and skills.
It's important to note that only authorized personnel should work on the air conditioner unit, as it may require specialized knowledge and skills to troubleshoot and fix the problem.
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