Hj Water System Error - Daikin VRVII Manual

Troubleshooting by Indication on the Remote Controller
HJ
3.35
Remote Controller Display
HJ
Applicable Models
VRV-WII and -WIII Series
Method of Error Detection
Detect abnormalities using the thermistor on the side
of the heat exchanger gas.
Detect turned OFF interlock circuit.
(When interlock setting is provided.)
Error Decision Conditions
When temperature on the heat exchanger gas side
drops remarkably with the smallest operation step of
the compressor
With interlock setting provided, when interlock circuit
is turned OFF.
Supposed Causes
Clogged water piping system
Insufficient heat exchanger water
Dirty heat exchanger
Disconnected connector
Defective thermistor on the heat exchanger gas side
Defective low pressure sensor
Water System Error
159