The following is for a qualified person who has read the disclaimer (click here). Power to Spa Pack must be turned OFF at breaker box and checked with a voltage meter to be sure power is OFF.  

This thermostat adjustment will change the factory maximum high setting of 104 and should only be done if thermostat is turning off too soon. Just a 1/4 turn clockwise will increase the maximum temperature plenty.

Spa Water temperature OVER 104 for an average healthy adult is dangerous. A temp. over 98 can be dangerous for small people, children, elderly, people with heart conditions and other health problems.

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