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EWC Controls ULTRA-ZONE ULTRA-TALK UT-3000 - Symptom 1: LCD & LEDs not responding

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©2015GoodmanManufacturingCompany,L.P.
Troubleshooting
LCD&LED’snotrespondingproperly,andHVACsystemismalfunctioning.
Communicatingthermostatmaydisplay faultmessages.
Solutions
CheckHVACsystemandUT300024vactransformersforpropervoltage.
Checksystemwiringforshortsorimproperwiring.
Testdamperwiresforcontinuity/shorts.
Checkzonethermostatsforshorts/improperwiring.
CheckBIASDCvoltages.
Symptom1

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