Jacuzzi J-300 Series - No Heat or Not Enough Heat (All Models) - Part 5

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8.1E No Heat or Not Enough Heat (All Models)
• Symptoms: Low Speed Pump or circulation pump (heating pump) is turning, panel heat
indicator not lit, panel is NOT ashing FL1.
Standard Troubleshooting Approach
Put hot tub in standard
ltration mode (pg. 7).
Set temperature high
enough to initiated a heat
call. Remove power to hot
tub then plug in a spare
control panel. Turn power
on. Does indicator work
now?
Replace control panel.
Verify that ow switch
padde is not bouncing and
address possible restriction
problems.
Jump out ow switch pins at
board. Does heat indicator
come on?
Replace circuit board.
No
No
Yes
Yes