SMC Networks HRZD020-W1S-W1S, Operation Manual

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