C-Wire Adapter for Smart Thermostats | YABUYALI THP9045A2098/U

Power your smart thermostat without costly rewiring

The YABUYALI C-Wire Adapter is the smart, compact solution for adding a reliable power path to your thermostat when a dedicated C wire isn’t available. Drop it into your existing wiring, and you may experience a cleaner, more responsive thermostat experience without pulling new cables. Picture a tidy setup tucked near your HVAC cabinet, with labeled wires and a small, unobtrusive module quietly doing the power work you’d otherwise have to reconfigure.

Key benefits at a glance

• Adds a C wire where a dedicated common conductor is missing, helping your thermostat stay powered between calls.
• Designed for 24V HVAC systems—forced air, hot water, steam, and heat pumps with electric backup—as a flexible power aid.
• Compatible with many smart thermostat brands as long as R/Rc, Y, and G wires are present, broadening future-proofing options.
• Converts existing G and Y wires into a stable C/K-like path to support continuous thermostat operation.

How it works

The adapter sits between your thermostat and the HVAC wiring, reassigning the signals so the thermostat can draw a steadier power supply. The design emphasizes a closed, clean finish, keeping internal components out of sight while delivering consistent performance during heating and cooling cycles.

Simple, tool-friendly installation

• Step-by-step guide included, with color-coded terminals and push-connect ports to minimize wiring mistakes.
• Drop-in form factor with magnetic or adhesive mounting options, letting you place it near the HVAC system without drilling.
• Typical setup time is around 30 minutes for many homes, resulting in a tidy, professional-looking finish.

What you get and how it’s built

• C-Wire Adapter unit that enables a stable power path for smart thermostats
• Wiring labels/stickers to keep connections organized
• Installation guide with clear steps and safety notes

Reliability and support

• Pre-tested quality—each unit is checked before shipping to help minimize surprises at install.
• Free installation guidance and a compatibility check to confirm that your system meets the basic wiring requirements
• Dedicated support for questions during setup and troubleshooting guidance as needed

Note: Professional installation is recommended if you’re unfamiliar with HVAC wiring. Before purchase, verify your system has R/Rc, Y, and G wires to maximize compatibility.