Failure Diagnosis And Resolution - Ispring CR500-A-S-1 User Manual

★ If the water purifier parts are damaged, it is recommended that the water purifier be
entrusted to the manufacturer or distributor, service center, or specialized technical
personnel for replacement to prevent loss caused by improper operation, the
manufacturer is not liable for losses caused by operation or use not in accordance with the
instructions and reminders.

Failure Diagnosis and Resolution

Failure
Experienced
The power source is not connected
Low water pressure or no water
The machine Low-pressure switch failure, cannot
will not start connect the power source
High-pressure switch cannot reset
The transformer is burned out
High-pressure pump has lost pressure
The
Inlet water solenoid valve will not let water
high-pressure
in (no outlet water or wastewater)
pump is working
properly, but no A pre-filter is blocked
water is being
The non return valve is blocked
produced
(wastewater, no output water)
The RO membrane is blocked
The machine is Inlet water solenoid valve failed, cannot
turned off but effectively cut off the water supply
wastewater has
The non return valve has lost pressure
not stopped
(wastewater flow rate is low)
The non return valve has lost pressure
After the
machine is filled High-pressure switch failure
with water, it
starts The system exhibits a loss of pressure
repeatedly
A pre-filter is blocked
The output
The RO membrane is blocked
water flow is low
Inlet water solenoid valve failure
or no water is
Non return valve is blocked
flowing
High-pressure pump pressure is not
sufficient
Reason
-15-
Resolution Method
Check the power source or power
source plug
Check the water pressure
After connecting the water source,
measure the resistance, replace
After letting off the pressure, measure
the resistance, replace
Measure the output voltage, replace
Measure the water pump pressure,
replace
Replace the inlet water solenoid valve
Observe the output water and
wastewater, replace the pre-filter
Replace the non return valve
Clean or replace the RO membrane
Observe the wastewater, replace the
inlet water solenoid valve
Observe the wastewater, replace the
non return valve
Replace the non return valve
Replace the high-pressure switch
After checking the non return valve,
check whether there is water leakage in
the pipes
Replace the pre-filter
Clean or replace the RO membrane
Replace the inlet water solenoid valve
Replace the non return valve
Check the high-pressure pump output
water pressure, replace