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Error Code E97
This code indicates dry--fire protection which could be due hot water or a problem with the 84℃
thermal fuse.
Begin the test by installing the spa control base and panel to a tub filled with water to the
recommended level. Turn on the spa control base. Run the heating function for 1 minute. If the spa
displays E97 again, remove the unit for further testing.
Begin by swapping out the 84℃ thermal fuse. Disconnect the wire connector for the fuse. Test
the 84 ℃ temp fuse on the heating element next. Adjust the multimeter to test for resistance using
the "Ω" function. It should near 0 resistance. Replace the temp fuse if the reading is "0 MΩ" or no
reading. Ensure that the plastic covering over the fuse is intact.
Run the control base on a spa. Change the PCB if the problem is not resolved. Reference the
PCB replacement chapter for more details.
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