Loosing a battle to diagnose problem with Mastertemp 400 reading a temperature of about 10 degrees higher than actual. I've replaced the thermistor, thermal regulator, and today the logic board. I also cleaned the filter. Same issue. The heater shuts off at 103/104 high temp limit even though the actual water temperature is about 94 (what Intellitouch shows and water feels). No errors showing up. Not a gas flow issue because is runs fine until high limit hit. If I set high limit at heater to 95, it will shut off when it reads 95, although spa is actually only about 85.
Ideas?
-- Mark
Easytouch 8
Intellisync
Ideas?
-- Mark
Easytouch 8
Intellisync