7
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 lines closed.
b) PUMP SWITCHES ON AND OFF FREQUENTLY (CYCLING) - Pressure
Pumps Only
1. Check that tank air pressure is correct - see above.
2. Leaking taps, float valves etc. check plumbing.
3. Leaking check valve/foot valve.
c) MOTOR DOESN’T START WHEN SWITCHED ON.
1. Power not connected.
2. Supply voltage too low.
3. “Over temperature” cut-out tripped.*
4. Motor not free to turn eg. a jammed impeller.
5. Internal motor fault.
*NOTE: For protection, the Davey pump motor is fitted with an
automatic “over temperature” cut-out. Constant tripping of this
overload device indicates a problem eg. low voltage at pump,
excessive temperature (above 45
o
C) in pump enclosure.
Care should also be taken when servicing or disassembling 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.
During servicing, use only approved, non-petrochemical based
oring and gasket lubrication. If unsure, consult your Davey
Dealer for advice.
WARNING: When servicing or attending pump, always ensure
power is switched off and lead unplugged. Electrical connections
should be serviced only by qualified persons.
WARNING: Do not use hydrocarbon based or hydrocarbon
propelledsprays around the electrical components of this pump.
In accordance with AS/NZS 60335.2.41 we are obliged to inform
you that this pump is not to be used by children or infirm persons
and must not be used as a toy by children.
