SMC Networks HRZD020-WS-WS Operation Manual page 101

Code Error message
CH1-15 CH2-15 Pump Breaker Trip FLT
CPRSR Breaker Trip
CH1-16 CH2-16
FLT
Interlock Fuse Cutout
CH1-17 CH2-17
FLT
CH1-18 CH2-18 DC Fuse Cutout WRN
CH1-19 CH2-19 FAN Motor Stop WRN
Int. Pump Time Out
CH1-20 CH2-20
WRN
Controller
CH1-21 CH2-21
Error FLT
COM-22 Memory Data Error FLT
Communication Error
CH1-23 CH2-23
WRN
CH1-24 CH2-24 DI Low Level WRN
CH1-25 CH2-25 Pump Inverter Error FLT
HRZD Series
Table 6-1 Troubleshooting (2/3)
Product
condition
The breaker for the circulating
Stop
pump power line was tripped.
The breaker for the compressor
Stop
power line was tripped.
An overcurrent was passed
Stop
through the control circuit.
An overcurrent was passed
Continued through the solenoid valve
(optional).
Continued The ventilating fan has stopped.
The internal pump was under
Continued conditions of continuous operation
over a specified time.
An interruption of communication
-COMM occurred between the product
controllers.
-PT1 An error was detected in the
-PT2 temperature sensor of the
circulating fluid circuit.
-PT3
-TH1 An error was detected in the
-TH2 temperature sensor of the
refrigerating circuit.
-TH3
Stop
-AT1 An error was detected during auto
tuning of the electron expansion
-AT2
valve.
An error was detected in internal
-LMT
processing of the product.
An error was detected in the
-EV2
electron expansion valve.
An error was detected in data
Stop stored in the controller of this
product.
An interruption of serial
Continued communication occurred between
this product and your system.
Electical resistivity of the circulating
Continued fluid falls short of your specified
value. (optional)
An error was detected in the pump
Stop
inverter.
Chapter 6 Error Message and Troubleshooting
Cause
HRX-OM-M005
Remedies
Check that the power supply to
the product is compliant with
the specification.
Check that the power supply to
the product is compliant with
the specification.
Contact the product supplier for
request of inspection and
repair.
Contact the product supplier for
request of inspection and
repair.
Check that the air vent on the
back of the product is not
blocked.
Check for fluid leak from
circulating fluid piping in your
system.
Contact the product supplier for
request of inspection and
repair.
Check the temperature sensor
for broken wires.
Check the temperature sensor
for broken wires.
Contact the product supplier for
request of inspection and
repair.
Contact the product supplier for
request of inspection and
repair.
Contact the product supplier for
request of inspection and
repair.
Reset the set value.
Check that a signal is being
issued from your system.
Check for disconnection of the
communication connector from
this product.
Lower the setting for resistivity.
Replacement of the DI filter is
required.
Contact the product supplier for
request of inspection and
repair.
6.2 Troubleshooting
6-3