Daikin FT25JV1B Installation Manual download pdf (Page 20)

YES

OFF

Blinks

Is LED-A turned off by turning

power supply back on?

Is correct power supply

voltage supplied?

Does LED-A blink right after the power

supply is turned on and goes out after that?

Does the fuse on outdoor uni

PC board or power supply line,

etc. has continuity?

If LED-A continues blinking after that,

normal. (Noise, etc. may have entered.

Refer to the example of noise

described in Malfunction 7-1.)

Is outdoor unit data displayed with No.2

transmission wire disconnected and transmission

monitor connected to terminal board of outdoo

unit?

Recheck the power supply.

Is voltage normally output fro

the secondary side of transformer?

Replace the transformer.

Replace the fuse.

(Probe possible causes o

melt down of the fuse.)

Replace the outdoor unit PC board.

Replace outdoor unit PC

board.

Malfunction 7-6: Outdoor Unit LED-A Off

Possible

causes

Ԙ Incorrect power supply voltage or faulty transmission wire

ԙ Faulty outdoor unit PC board

Ԛ Faulty indoor unit PC board

ԛ Molten fuse

Ԝ Faulty transformer

ԝ Incorrect combination of indoor and outdoor units

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Daikin FT25JV1B Installation Manual Page 20