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YL - A4 - Water Purifier Circuit Board
Purify: When the switch detected a pressure lower than normal high pressure,the booster pump started to work,inlet valve opened and entered the source process.
Full: When the pressure reached a certain degree in pressure bucket,high-voltage switch turned off, the machines shut down,inlet valve closed.
Lack: When the low pressure switch detected the water pressure below the set value or the computer board detected low pressure switch off,the machines shut down,booster pump stopped,inlet valve closed, buzzer chirping for 10 seconds.
Check: Continuously produced water for 6 hours(no water full), it means something wrong happened to the machine and entered the check process, buzzer chirping for 10 seconds.