| CAUSE OF
TROUBLE |
HOW TO CHECK |
HOW TO CORRECT |
Incorrect line
voltage
|
Use voltmeter
to check at pressure switch or terminals nearest pump |
If voltage
under recommended minimum, check size of wiring from main switch on
property. If OK, contact power company |
| Motor wired
incorrectly |
Check motor
wiring diagram
|
Reconnect for
proper voltage as per wiring diagram |
| Inadequate
ventilation |
Check air
temperature where pump is located. If over 100ºF overload may be tripping
on external heat |
Provide
adequate ventilation or move pump
|
Prolonged low
pressure delivery
|
Continuous
operation at very low pressure places heavy overload on pump. This can
cause overload protection to trip |
Install globe
valve on discharge line and throttle to increase pressure
|