Warning E20: laser power supply does not match the handle

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• Warning E16: detection to laser emission current is too large/small

  a) This failure means “current testing – laser emission current is tested too large/small”. Use it again after restarting the instrument. If this failure still occurs, find out the problem. At this time, continue the use by ignoring this problem. ...

• No laser output

  Tips: Scope of application: Engineer Applicable grade: Professional Service tools: Multimeter  Apply text preconditions: 1、Renuva® works normal and there are no other warning； 2、The scanning galvanometer works normally； Step1. Checking the laser fan ...

• Warning E06 E07: The cooling power supply for the handpiece can't be turned off ; no power input for handpiece cooling

  This failure means the “failure of handpiece refrigeration control” or “no power input of handpiece refrigeration”. Replace mainboard of main console at this time.

• Warning W08

  a) 此故障代表“水箱温度超出上下限”，极有可能是手柄长时间以高能量出光导致的。此提示会在水箱温度恢复正常后自动消失。 b) 如果该故障提示很容易出现（持续工作1h以内就会出现），则考虑为仪器故障。 c) 首先查看水质检测板显示水温，如果未出现温度跳变现象，则排除温度传感器接触不良问题，否则需检查温度传感器或更换水质检测板。 ...

• Unable to start the machine (abnormal power-on)

  a) Check whether ~220/110V voltage of power socket is normal and whether the power wire is plugged tightly. Make sure the air switch is in “off” state. b) Make sure the contactor that always has the alternating current with power supply voltage is ...