PUMP WORKS FINE AT FIRST, THEN FLOW DROPS SUBSTANTIALLY
1.
Blocked filters - check to ensure all filters (if installed) are clean and free from blockage.
2.
Flow may be limited from source (eg. too small a supply line and/or inadequate flow). Install a holding
tank before the pump if the source cannot be improved.
MOTOR DOESN'T START WHEN SWITCHED ON - LOW PRESSURE INDICATOR LIGHT NOT
ILLUMINATED
1.
Power not connected or no power available from supply outlet.
2.
Supply voltage too low - check fuses or circuit breaker.
3.
System already primed and pressurized (press yellow button to test motor).
4.
Incorrect supply voltage (eg. HS18-40HT2 is 230V only).
MOTOR DOESN'T START WHEN SWITCHED ON - LOW PRESSURE INDICATOR LIGHT ILLUMINATED
1.
Supply voltage too low.
2.
"Over temperature" cut-out tripped - switch off, wait 10 minutes and switch on again.
3.
Motor not free to turn - eg. a jammed impeller.
4.
Internal motor fault.
NOTE: For protection, the Davey
temperature" cut-out. Constant tripping of this overload device indicates a problem e.g.
low voltage at pump, excessive temperature (above 115°F) in pump enclosure.
NOTE: To protect the pump, the Hydrascan ® CL fitted to your pump has a secondary
over temperature function built-in. This function automatically stops the pump should
the water in the pump reach 170
temperature drops below 170
Motor normally operates at high temperature and may be too hot to touch. Before
handling pump or motor, stop motor and allow it to cool.
WARNING: When servicing or attending pump, always ensure power is switched off and
lead unplugged. Electrical connections should be serviced only by qualified persons.
Care should also be taken when servicing or disassembling pump to avoid possible
injury from hot pressurized 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: Do not use hydrocarbon based or hydrocarbon propelled sprays around the
electrical components of this pump.
After Sales Service
For professional after sales service or repair contact your Davey dealer. For assistance in locating your
nearest dealer contact the Davey Service Center on the telephone number located on the back of this
document.
pump motor is fitted with an automatic "over
®
F. The pump will automatically restart once the water
o
F.
o
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