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| | Thermostat Calibration and Replacement for hot tubs and spas |
 | | In view of the fact that most of these types of thermostats will lose their maximum temperature sense rating over time, and recalibration is all that is typically required, this procedure is presented to show you how an experienced spa technician may solve this problem quite easily, without actually having to replace the thermostat switch. |
 | | Thermostats of this type provide RELATIVE indications of temperature, (ie, hot or cold only), and re-calibrating a thermostat to make the heater perform at a higher temperatures is a SERIOUS procedure. |
 | | As an example, (using a typical old thermostat in use in the field), the ON point with water that is in the 80 degree farenheit range, will normally be in the late 20% of the clockwise rotation, ie, midway through the HOT indication on the control panel. |
| spasupport.com /seq/tstatcal (1374 words) |
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