Submersible pumps, which are used by many people and companies today, may have many malfunctions. You can try to determine what the malfunction of the submersible pump is by checking the items below.

Motor: Check whether the submersible pump motor is running. If the motor does not start, check if the electrical connections are properly made.
Water Inlet: Check whether the submersible pump water inlet pipe is clogged. If clogged, the pipe should be cleaned or may need to be replaced.
Water Outlet: Check whether the submersible pump water outlet pipes are clogged. If it is clogged, the pipe should be cleaned or may need to be replaced.
Filter: Check whether the submersible pump filter is clogged. If it is clogged, the filter should be cleaned well or replaced with a new filter.
Electrical Connections: Check whether the submersible pump electrical connections are made properly. If the electrical connections are not made properly, the system will not work properly.
Valve: Check whether the submersible pump valves are working. If the valves are not working, the valves should be repaired or replaced with a new valve.
Check these items and try to determine what the fault is. If you cannot find the source of the fault, contact a professional repair service. It is very important that these procedures are carried out by a professional person. Otherwise, the pump may receive greater damage.

EMS - Model EMS-N 402 - Noril Fan Submersible Pump - Datasheet