Jets Pump Runs And Quits During Jet Mode - Jacuzzi LED Series Troubleshooting Manual

8.11 Jets Pump Runs and Quits During Jet Mode

This is usually a problem of pump overheating. The pump motor incorporates a thermal
cutout switch that triggers when the motor gets too hot. There is no reset for this condi-
tion. When the motor cools, the thermal switch resets automatically. In some cases, a
faulty circuit can also cause this problem.
Diagnostic Tools: Clamp-on Ammeter, Voltmeter
Suggested Spare Parts: Circuit Board, Jets Pump
Standard Troubleshooting Approach
Refer to pages 43-46 for testing points.
Press JETS button.
Does motor make a
"laboring" sound?
Yes
Is there sufficient
voltage connected
to hot tub. Check for
240 VAC ±10% (or
120 VAC ±10% for
convertible J-315
and J-325 models)
at TB1 test points 1
and 2.
Yes
Check voltage with
pump running. Is
the voltage 240 VAC
±10% (or 120 VAC
±10% for convertible
models) at test
points 1 and 2.
Yes
Replace pump.
30
No
Is voltage from circuit board
to pump correct after pump
quits? Check for 240 VAC
(120 VAC for convertible
J-315 and J-325 models) at
recommended test points.
See table at right for a listing
of recommended test points.
Pump has thermally shut
down. See page 32.
No
Call an electrician to
fix problem.
This is caused by
insufficient wiring
No
or the pump motor
drawing too much
current. Contact
Technical Support.
No
Replace circuit
board
Yes
Recommended Test Points
All 1-Pump models
• High Speed Pump 1 - test point 6 and 7.
All two pump models
• High Speed Pump 1 - test point 6 and 7.
• High Speed Pump 2 - test point 8 and 9.
DANGER: Electrical Shock Hazard Exists!
High Voltage Present on Circuit Board. Use
Extreme Caution while Servicing Circuit Board.