A.O. Smith LOTUS-75M, Руководство пользователя

Страница: 20 / 48

ENG 18
FAILURE EXPERIENCED REASON SOLUTION METHOD
• The power source is not connected.
• Low inlet water pressure or no water.
• Low-pressure switch failure, cannot connect the power
source.
• High-pressure switch cannot be restored.
• Switch Mode Power Supply is burned out.
•
High-pressure pump burned out.
• Transformer burned out.
•
High-pressure pump has lost pressure.
• A pre-filter is blocked.
• Check valve is blocked. (waste water, no pure water)
• The RO Membrane is plugged.
• Check valve has lost pressure.
• High-pressure switch failure.
• System is exhibiting a loss of pressure.
• Pre-filter is plugged.
• RO membrane is plugged.
• Shut-off valve failure.
• Check valve is plugged.
• Post-carbon filter is plugged.
• High pressure pump pressure is not enough.
• Storage tank doesn’t have enough pressure.
• Post-activated carbon filter is plugged.
• High-pressure pump pressure is not reaching 0.3MPa,
the storage tank internal pressure cannot reach the set
high pressure.
• Shut-off valve failed, cannot effectively
cut off the water supply.
• Check valve has lost pressure. (small W.W. flow rate)
• High-pressure problem.
• High-pressure pump has lost pressure.
• Shut-off valve is faulty.
• Check the power source or the power source plug.
• Check the inlet water pressure.
• After connecting the inlet water, measure the resistance,
replace.
• After letting off the pressure, measure the resistance,
replace.
• Measure the output voltage, replace.
• Replace the high-pressure pump.
• Check the transformer input voltage/overload.
• Replace the pre-filter.
• Wash or replace the RO membrane.
• Replace the shut-off valve.
• Replace the check valve.
• Replace the post-carbon filter.
• Measure the high pressure pump water pressure, replace.
•
Measure the water pump pressure, replace.
• Observe the pure water and waste water, replace the pre-filter.
• Replace the check valve.
• Clean or replace the RO membrane.
• Replace the check valve.
• Replace the high pressure switch.
• After checking the check valve, check whether
there is water leakage in the pipelines.
• Inflate the storage bucket, empty tank pressure
should be between 0.05 and 0.07MPa.
• Replace the post-activated carbon filter.
• Measure the pressure from
the water pressure pump, replace.
• Observe the waste water, replace the shut-off valve.
• Observe the waste water, replace the check valve.
• Measure the pressure.
• Measure the water pump pressure, replace.
• Replace the shut-off valve.
The machine will not
start
The high pressure pump
is working properly,
but no water is being
produced
The storage tank is full
but no pure
water is flowing out
The machine is turned off
but waste water has not
stopped
The machine produces
continuous pure water
After the machine is
filled with water, the
machine starts repeatedly
The pure water flow is
small or not flowing
Troubleshooting Guide