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Well INSTANT HEATING - Maintenance and Cleaning; Periodic Nozzle and Strainer Cleaning; Troubleshooting Common Issues; Fault Diagnosis and Solutions

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3. Periodic cleaning method
Unscrew the nozzle, the nozzle should be washed with clean water, clean nozzle holes to
remove all collected dirt, use fine wire to remove stubborn residue, as shown in diagram.
With strainer tap (under inflow model) according to the diagram 3 shows, remove the inlet
strainer on the basis and clean as in section 2 to keep performance.
Then install it as before. Strainer according to the chart 4 shows, remove the inlet strainer
for cleaning, then according to the diagram 4 Reinstall.
Troubleshooting
Fault
Failure Cause
Solution
Water Not Heating
No plugged or hydraulic pressure too low
Check the power supply circuit wire is connected
and the minimum use water pressure not less than
0.04MPa
Low Water / High
Temperature
Too much water or the voltage is to low
Decrease water pressure, check the power supply
and use of voltage
Water Outlet Low
Water inlet blocked or hydraulic pressure
too low
Check inlet filter for dirt and remove it and then
increase water inlet flow and pressure to low.
No Indicator Light
Hydraulic pressure is too low, can’t open
power supply or circuit fault
Use the water heater when the hydraulic pressure
is normal level.