Daikin DZK030E4-3 - Auto Diagnostics - Interface Board; Interface Board LED Meanings

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Installation Manual
Rev. 2.00 Date 01-2019
LED D5 does not blink
- The board is not receiving information from the Wired Thermostat. Verify the wiring between the
Wired Thermostat and the Control Board. Never use solid wires for this connection.
LED D11 is not ON
- Verify that the Control Board is powered.
DZK INTERFACE BOARD AUTO DIAGNOSIS
DZK Interface Board has integrated LED’s that provide information about abnormal conditions.
LED D1 is not ON
- Verify the AC Unit Power Supply.
- Verify the correct connection between the Daikin Indoor unit and the DZK Interface Board.
LED D2 does not blink
- Contact Technical Support.
LED’s D3/D4 do not blink
- Check the connection between the DZK Interface board and the DZK Control Board.
LED’s D5/D6 do not blink
- Check the correct connection between the Daikin Indoor unit and the DZK Interface Board.
Meaning
D1
Interface power supply
Solid
Red
D2
DZK Interface Board internal bus activity
Blinking
Green
D3
Data transmission to Zoning box control board
Blinking
Red
D4
Data reception from Zoning box control board
Blinking
Green
D5
Data transmission to Daikin navigation controller
Blinking
Red
D6
Data reception from Daikin navigation controller
Blinking Green