Daikin VRV Aurora RXLQ-TATJU Series, Service Manual

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Troubleshooting by Error Code SiUS341802EC
269 Part 6 Service Diagnosis
3.22 Climate Talk Communication Error
Applicable
Models
CXTQ-TA
Error Code
C1-08
Method of Error
Detection
Monitors the communication with the gas furnace connected to the Climate Talk Communication
terminal.
Error Reset
Conditions
The error decision is made when the communication with the gas furnace is lost after once the
initial setting for communication with the gas furnace completes.
Supposed
Causes

Disconnection of the communication wire between the CXTQ-TA and the gas furnace

Power supply to the gas furnace is cut.
Troubleshooting
N O
Caution
Be sure to turn off the po w er s w itch before connecting or disconnecting
connectors, or parts may be damaged.
1 and 2
terminals of the gas
furnace and the CXTQ-TA are
connected each
other.
N O
YES
YES
YES
N O
The
communication
w ire to the gas furnace
picks up noise.
Replace the CXTQ-TA PCB
or the gas furnace PCB.
Ensure correct w iring of the
communication w ire
bet w een terminals.
Turn O N the po w er of the
gas furnace.
Keep the communication
w ire a w ay from the noise
source.
The
po w er of the gas
furnace is turned O N .