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Zhi high-altitude adjuster does not start the display without any display maintenance methods

时间:2018-12-15 浏览: Product Center Time: 2018-12-15

Zhi high-altitude adjuster does not start the display without any display maintenance methods

problem causes:

1, the machine itself, a transformer is broken, b internal board is broken, c display is not displayed;

2. For circuit reasons, a voltage abnormality causes the combustion element b to be installed, and the live, neutral, and ground wires are mixed.

Maintenance method:

Just bought the machine, turn on the indoor unit, check the primary open circuit of the transformer, did not start when plugged in, detected a fire, the neutral line voltage value is 216V, the user's household voltage is 230V, change the transformer test machine, the internal machine relay is only pulled in, display A Blinking, automatic shutdown, replacement of the internal board, the fault still exists, and eventually it is suspected that it is a power problem. Check that the installer incorrectly connected the ground wire to the neutral wire, but the ground wire is not grounded and there is no turning back to adjust the line.

Summary of maintenance experience:

Be sure to pay attention to the zero line of the indoor unit. Similar faults, check the problem of the zero voltage circuit of the fire, the connection of the indoor unit is wrong, the indoor unit is wrong, the live line will be the neutral line, the transformer will be burned, and even the inner board; If the line is grounded, the air switch will trip; the display will automatically flash and turn off; properly connect the live zero line 220V.

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