Davey RAINBANK PRO RAINWATER HARVESTING SYSTEM - Manual (Page 11)

11
TROUBLE SHOOTING CHECK LIST
A) MOTOR RUNS WHEN SWITCHED ON BUT DOES NOT PUMP.
1. Suction line and pump body not filled with water.
2. Air leaks in suction lines or suction pipe not under water.
3. Air trapped in suction lines (also possible with flooded suction due to uneven rise in piping: eliminate humps and
hollows).
4. No water at source or water level too low.
5. Valve on suction line closed.
B) PUMP SWITCHES ON AND OFF FREQUENTLY (CYCLING).
1. Check that tank air pressure is correct.
2. Leaking taps, float valves etc. Check plumbing.
3. Leaking check valve/foot valve.
4. Pressure Switch may require adjustment to cater for flooded suction installations – consult your Davey dealer for
advice.
C) MOTOR DOESN’T START WHEN SWITCHED ON.
1. Power not connected.
2. Supply voltage too low.
3. Motor not free to turn e.g. a jammed impeller.
4. Internal motor fault.
NOTE: For protection, single phase motors up to 2.2kW are fitted with an automatic “over
temperature” cut-out. Constant tripping of this overload device indicates a problem e.g. low voltage
at pump, excessive temperature (above 40°C) in pump enclosure.
WARNING: When servicing or attending the pump, ALWAYS ensure power is switched off and lead
unplugged. Electrical connections should be serviced only by qualified persons. If the electrical
supply lead of this pressure system is damaged, it must only be replaced by authorised Davey
service personnel as special tools are required.
Care should also be taken when servicing or disassembling the pump to avoid possible injury from
hot pressurised water. Unplug pump, relieve pressure by opening a tap on the discharge side of the
pump and allow any hot water in the pump to cool before attempting to dismantle.
WARNING: Automatic resets may allow the pump to restart without warning. Always disconnect the
pump motor from the electrical supply before maintenance or repairs.
WARNING: Do not use hydrocarbon based or hydrocarbon propelled sprays around the electrical
components of this pump.