HRX-OM-I051
Chapter 6 Error Message and Troubleshooting
HRZ Series 6.2 Troubleshooting
Table 6-1 Troubleshooting (2/2)
The flow rate of the circulating
fluid falls short of 6L/min.
Check that the external valve is
opened.
Prepare a thicker external pipe
or install bypass piping.
The flow rate in this system
falls short of your specified
value.
Reset the setting flow rate.
The breaker for the heater
power line was tripped.
Check that the power supply to
this system is compliant with the
specification.
The breaker for the circulating
pump power line was tripped.
Check that the power supply to
this system is compliant with the
specification.
The breaker for the
compressor power line was
tripped.
Check that the power supply to
this system is compliant with the
specification.
Interlock Fuse
Cutout FLT
An overcurrent was passed
through the control circuit.
Contact the system supplier for
request of inspection and repair.
An overcurrent was passed
through the solenoid valve
(optional).
Contact the system supplier for
request of inspection and repair.
The ventilating fan came to a
stop.
Check that the air vent on the
back of the system is not blocked
off.
Internal Pump
Time Out WRN
The internal pump was under
conditions of continuous
operation over a specified time.
Check for fluid leak from
circulating fluid piping in your
system.
An error was detected in the
control system.
Contact the system supplier for
request of inspection and repair.
An error was detected in data
stored in the controller of this
system.
Contact the system supplier for
request of inspection and repair.
An interruption of serial
communication occurred
between this system and your
system.
Check that a signal is being
issued from your system.
Check for disconnection of the
communication connector from
this system.
Electical resistivity of the
circulating fluid falls short of
your specified value.
Lower the setting for resistivity.
Replacement of the DI filter is
required.
An error was detected in the
system inverter.
Contact the system supplier for
request of inspection and repair.
DeviceNet communication was
disconnected between this
system and the customer’s
system.
Check that a signal is being
issued from your system.
Check for disconnection of the
communication connector from
this system.
An error was detected in the
DeviceNet communication
system.
Contact the system supplier for
request of inspection and repair.
An error was detected in the
inverter for compressor.
Contact the system supplier for
request of inspection and repair.