PD20Series
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Chapter 6 Regular maintenance
6.1
Controller and Pump
•
Controller
Periodically checking of Status display, error code display and fault record, long
term verification of cooling fan and cleaning of heat sink are needed.
• pump
The pump’s motor is permanently sealed, no need to maintain. Pump head is a
mechanical device, may be used for a period of time, due to the sand in the water,
and other impurities cause a certain wear, the performance of the pump needs to be
regularly detected. If the flow of the pump is less than the normal value, may need to
be replaced.
6.2 Solar panels
Periodically cleaning of the surface of panels and checking wiring are required.
6.3 Cable
Need to regularly check the power cable and ground wire to make sure all the wires
are reliably connected and without being corroded.
