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Idiomas disponibles
Idiomas disponibles
THE PUMP DELIVERS
WATER BUT VOLUME IS
CONSIDERABLY BELOW RATING
THE PUMP STARTS AND STOPS
TOO FREQUENTLY
THE PUMP IS NOISY
THE THERMAL OVERLOAD
PROTECTOR STOPS THE PUMP
Check for possible leaks in the suction pipe or the air volume control connection.
The strainer on the foot valve may be partially clogged.
The impeller or the jet fitting may be clogged with sand or other obstruction.
The well may not yield sufficient water for the pump to deliver rated capacity.
Total suction lift may be beyond that recommended for jet fitting.
Due to low voltage conditions, the motor may not be operating at full speed.
Make sure the regulating valve is properly adjusted.
Pipe sizes may be smaller than recommended, causing excessive friction losses.
Make sure the nozzle and venturi are tight in the pump body.
Check to ensure O-ring (on Venturi) is in place.
Make sure that the pressure tank has enough air. Check for faulty air volume control or
air leaks in the tank above water level.
Air may be escaping around the plug on top of the tank.
The pressure switch may be faulty or may not be adjusted for the proper differential
between cut-in and cut-out pressure.
Insufficient suction lift to operate air volume control (If used).
(a) Pump may be used as a booster with pressure supplied to the suction side.
(b) Shallow well pump may be used at lifts less than 7 feet. If so, a valve must be placed
in the suction pipe to restrict the flow of water and create additional suction lift, thus
assuring proper operation of the automatic air volume control.
(c) Deep well jet may be used in shallow well range.
Make sure the pump and the tank are mounted on a substantial foundation. The pipe
should be rigid and all connections tight.
Motor bearings may be worn.
On shallow well installations, total suction lift may be greater than 25 feet.
The impeller and motor shaft may be running out of alignment, causing the impeller to rub
against the diffuser.
The foot valve, jet, or impeller may be partially clogged.
On deep well installation, regulating valve may be set below the minimum recommended
operating pressure.
Check for improper voltage and be sure the motor is wired properly.
Check for low voltage conditions or inadequate wire size.
Be sure the motor is properly ventilated and not subject to high temperatures.
Due to a faulty switch or a waterlogged tank, the pump may be starting and stopping too
often, causing the motor to overheat.
The impeller may be rubbing on the diffuser, causing the motor to become overloaded.
Overload protector on the motor may be defective.
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