3.1.38.1 - Low Temperature Differential Across Heating Coil

Summary

This unit is in heating mode and has a low temperature increase across the heating coil with the valve open, indicating a failed heating valve, actuator, or coil. This may lead to increased operating costs and comfort complaints.

Root Cause

Failed heating valve or actuator - Damaged, plugged, or dirty coil - Mixed air or discharge air temperature sensor failure

Inputs
Constants

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