35
8.7 No Jets
This is a condition of constant zero water pressure. The first step in diagnosing the problem is to
determine if the pump is actually turning. Once this determination is made, follow the appropriate
portion of the S.T.A.
Diagnostic Tools:
Voltmeter
Suggested Spare Parts:
Control Panel, Circuit Board, Jets Pump 1
Pump Is Turning (Checking for A Flow Problem)
1. Make sure jets are open. (Jets can be individually turned off, in some cases.)
2. Is the filter clogged?
3. Is there an obstruction in the plumbing line?
4. Check for air lock (clear air lock by opening union on pump discharge).
Standard Troubleshooting Approach
Refer to pages 50-53 for testing points.
This applies to 2011-2013 J300 Models not 2014+
Press JETS Button to turn on
jets pump.
Do you hear a relay click on
the circuit board?
Is voltage from circuit board
to main pump test point
correct?
Check for 240 VAC (120
VAC for convertible J-210,
J-315, J-325 models) at
recommended test points.
See table at right for a listing
of recommended test points.
Is connection between circuit
board and pump OK?
Replace pump.
Plug in spare control panel then
press JETS Button.
Do you hear a relay click on the
circuit board?
Replace circuit board.
Replace control panel.
Replace circuit board.
Repair wiring.
No
Yes
No
No
No
Yes
Yes
Yes
Recommended Test Points
All 1-Pump (2-speed) models
• Low Speed Pump 1 - test point 5 and 6.
• High Speed Pump 1 - test point 5 and 7.
All two pump models
• Low Speed Pump 1 - test point 5 and 6.
• High Speed Pump 1 - test point 5 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.
