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Donald FrazierSep 9, 2025
What causes a heat exchanger water temperature sensor failure in Carrier PRO-DIALOG PLUS 50AZ Control Systems?
- SSandra RoachSep 9, 2025
A heat exchanger water temperature sensor failure is caused by a faulty thermistor. The unit will shut down. Automatic, if the temperature measured by the sensor returns to the permitted range of values.








