Troubleshooting Your Spa
Spa Water Won't Heat Over 98/99 Degrees

Run the spa without the filter installed for a few days, then check the temperature, if you find a satisfactory rise, then replace the filter. See "filters".

If after doing this you still are not reaching the desired temperature then replace the thermostat.

NOTE: A spa will not reach its desired temperature without a proper cover. Do not attempt to calibrate the thermostat! It is safer to replace it than to possibly place someone in jeopardy.

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