stape2000 Posted September 3, 2019 Report Share Posted September 3, 2019 Do I need to drain the water to replace both Thermistors in the no fault heater or should I be able to quickly pull them and replace them without draining the water. Thanks Stape Quote Link to comment Share on other sites More sharing options...
Peteyboy Posted September 22, 2019 Report Share Posted September 22, 2019 If you don't have new o-rings plug it with your finger and be quick. Turn off power before doing it. Quote Link to comment Share on other sites More sharing options...
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