Thermostat Repair in Northern Virginia and Maryland

Are You Experiencing Issues With Your Thermostat? Contact our professional for assistance!

Most residential Thermostats operate on 24 volts AC supplied by a transformer located in the furnace or Air Handler to control heating and Air Conditioning systems. The transformer steps down 120 / 240 volts to 24 volts, allowing the thermostat and control components to function properly. The 24-volt signal is carried through two wires connected to the R terminal. During repair, we inspect the Heat connection and the Y Terminal to R for cooling. For Heat pump thermostats, the O or B terminal is carefully checked for proper operation. The C terminal inside the thermostat must be correctly connected when batteries are not used or when a constant power supply is required.

Schedule service

Our Repair Process

Give us a call to schedule a team visit to your location. On the day of the visit, someone from our team will connect with you. Once our experts arrive at your location, they will inspect and diagnose the thermostat issue. After identifying the problem, our team will repair the existing thermostat. They will also test the system functionality and resolve any concerns you may have.

Different Types of Thermostats;

• Programmable Thermostats
• Non-Programmable Thermostats
• Smart Thermostats

If you are experiencing issues with your existing Thermostat, our Air Conditioning and Heating Service Techs are available 7 days a week to visit your location and assist with repairing your HVAC Thermostat.

Direction on how we perform Non Programmable Low Voltage Home Thermostat Repair.

• Before starting, we review and follow the Thermostat manufacturer guidelines.
• Remove the existing Thermostat front part for inspection.
• Turn the Circuit Breaker off or the On / Off Switch located near the indoor AC Unit.
• Identify and document which color wire is connected to each terminal.
• Label the wires, if required, before disconnecting them from the base.
• Remove the base by loosening the screws securing the Thermostat to the wall.
• Inspect the thermostat base and internal components for loose, damaged, or corroded connections.
• Secure the existing base plate properly if it is loose or misaligned.
• Use a level to ensure the Thermostat is not leaning to the right or left.
• Reconnect the Low-Voltage Color Coded Wires to the appropriate screw terminals.
• If wiring does not match the standard configuration, refer to the Thermostat service manual.
• Tighten all wires (commonly used Thermostat terminals include Rc, Rh, C, G, W, Y, O, W1, W2, E, Aux, X) securely.
• If the existing thermostat does not have a C terminal, verify battery operation requirements.
• Install or replace batteries in the correct direction as specified by the manufacturer.
• Turn the power back On and test Heating and Cooling cycles.
• We prefer repairing compatible thermostat sizes to avoid wall paint damage.

Note: There are four basic types of Thermostats commonly used in homes Non-Programmable, Programmable, Wi-Fi, and Smart Thermostat. Though Line Voltage Thermostat is also in use in older apartment buildings.

Contact our experts to handle your home thermostat troubleshooting, repair, and replacement needs. We are happy to assist you!