Diaphragm Pump Trouble Shooting
Problem |
Cause |
Solution |
Motordoesn’t start |
Electrical connections |
Blown fuse,main switch, and ground connection |
Motor hot |
Thermal Protect, Wait until motor cooling |
|
Incorrect Voltage |
Use correct voltages (+/-10%) |
|
Pump can not shut off |
Restricted inlet |
check the strainer, hose, valves |
loose drive assembly |
tighten the screw |
|
Air in the system |
check all fixtures |
|
Incorrect Voltage |
Use correct voltages (+_10%) |
|
By-pass set higher than shut-off |
Lower it down |
|
Noisy |
Restricted inlet |
check the strainer, hose, valves |
Air in the system |
check all fixtures |
|
Crude Mounting surface |
install on flat surface |
|
loose drive assembly |
tighten the screw ,and the mounting feet |
|
Leaks |
loose drive assembly |
tighten the screw |
switch or pump assembly rupture |
check the switch and pump head assembly, and replace the kits |
|
Low pressure/flow |
Air in the system |
check all fixtures |
leak |
check all fixtures |
|
Incorrect Voltage |
Use correct voltages (+_10%) |
|
Doesn’t Draw Water
|
Problems on the suction line |
1.Checksuction line,pipes or fittings are sucking in air.Inspected the entire suction line, ensured that pipes and fittings are securely fastened. |
Clogged suction filter |
2.Clogged suction filter, if the suction line is intact and functioning, you must remove the suction filter and clean it if it is clogged. |