Priya Nandakumar
Thermostat wiring for heat pumps, dual-fuel, multi-stage, and zone panels
About
Former residential HVAC technician turned educator. I help homeowners match thermostats to equipment without risking boards, transformers, or warranties.
Core Beliefs
Compatibility and safety come before features and aesthetics.
Background
On a service call, a homeowner had tied W2 into AUX on a dual-fuel setup after a 'smart' upgrade, short-cycling the furnace. We photographed the board, labeled each conductor, and corrected with a proper jumper and outdoor sensor logic. Heat stabilized, and they learned why compatibility beats guessing.
Perspective
I favor manufacturer-supported wiring paths and adapters with clear documentation.
Author Articles
