9> Simple Troubleshooting - S&A CWFL-8000 Series User Manual

<9> Simple troubleshooting
Failure
Machine turned on but unelectrified
Flow Alarm
(controller displays E01 or E02) use a
water pipe directly connect to the
water outlet and inlet but still without
water flowing
Flow alarm occurs while running with
other equipment (controller displays
E01 or E02), but there is water flowing
and no alarm when use a water pipe
directly connected to the chiller water
outlet and inlet.
Ultra-high temperature
alarm(controller displays E05 or E07)
Alarm for ultra-high room
temperature(controller displays E03)
Serious problem of condensate water
Water drains slowly from outfall during
water changing
Failure Cause
Power cord is not plugged in place
Fuse burnt-out
Water level in the storage water tank is
too low
Water circulation pipes are blocked or
a pipe bending deformation.
Blocked dust gauze, bad thermolysis
Poor ventilation for air outlet and inlet
Voltage is extremely low or astable
Improper parameter settings on
thermostat
Switch the power frequently
Excessive heat load
The working ambient
temperature is too high for the chiller
Water temperature is much lower than
ambient temperature, high humidity
Injection port is not open
18
CWFL-8000 Series
Approach
Check and ensure the power interface
and the power plug is plugged in place
and in good contact
Open the electric box cover, check the
protective tube, replace with spare one
if necessary and check whether the
power supply voltage is stable; Check
and ensure the power interface and
the power plug are in good contact
Check the water level gauge display,
add water until the level shown in the
green area; And check whether water
circulation pipe leaks
Check water circulation pipe
Unpick and wash the dust gauze
regularly
To ensure a smooth ventilation
for air outlet and inlet
To improve the power supply circuit or
use a voltage regulator
To reset controlling parameters or
restore factory settings
To ensure there is sufficient time
for refrigeration
(more than 5 minutes)
Reduce the heat load or use other
model with larger cooling capacity
To improve the ventilation to guarantee
that the machine is running under
40℃.
Increase water temperature or
to preserve heat for pipeline
Open the injection port