ClimateWorx M52 - Test Mode and Diagnostics; Board Diagnostics

Advanced M52 Microprocessor User's Guide
ADVANCED M52UMCT2019 COLOR
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Heater 1 runtime reset Resets SCR reheat or Heater 1 run time to zero
Heater 2 runtime reset Resets heater 2 runtime to zero
Heater 3 runtime reset Resets heater 3 runtime to zero
Humid runtime reset Resets humidifier run time to zero