Daikin FT25JV1B Manual de instalación descargar pdf (Pagina 15)

YES

Blinks

Is LED-A turned on by turning the

power supply back on?

Is indoor unit data displayed with transmissio

monitor connected to terminal board of eithe

indoor or outdoor unit?

Replace the indoor unit PC board.

(If two numbers of PC boards are provided,

refer to the service manual of applicable

model for the replacement.)

Carry out grounding work.

Take measures against noise.

Example:

a) Large capacity electric heater (wit

temperature control)

b) Welder

c) Inverter fan (used for ventilation, etc.)

Is grounding work completed?

Is there any noise source?

Normal (Note)

Is correct power supply voltage

supplied?

Recheck the power supply.

Malfunction 7-1:Indoor Unit LED-A On

Possible

causes

Ԙ Faulty indoor unit PC board

ԙ Malfunction of microcomputer

(Note) Be careful that, even when LED-A starts blinking normally after the power supply is turned back

on, this malfunction may reoccur within a few minutes to a few days.

(Reference) The microcomputer for PC boards is not programmed to turn LED-A on. The program may not be

functioned while LED-A is ON as it repeats ON/OFF operation (blinks).

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Daikin FT25JV1B Manual de instalación Pagina 15