Thermostat & Controls Services, Georgetown TX
Thermostat Installation & Service
Install any thermostat, standard, programmable, or smart, with proper wiring, configuration, and testing.
Replace faulty or outdated thermostats. We identify compatibility requirements before recommending equipment.
Recalibrate thermostats reading inaccurately, a 2-3°F offset causes significant comfort and efficiency problems in Georgetown's heat.
Determine if the thermostat or the system is the cause of HVAC problems, the thermostat is rarely the actual culprit.
Relocate thermostats away from heat sources, drafts, or direct sunlight that cause inaccurate temperature readings.
Install a common wire for smart thermostats that require continuous 24V power, without it, smart thermostats often malfunction.
Full smart thermostat setup including wiring, app configuration, scheduling, and compatibility verification.
Optimize thermostat response settings, anticipator adjustment, and stage sequencing for your specific system.
HVAC Electrical Diagnostics & Repair
Systematic low-voltage and line-voltage electrical diagnosis, find faults without replacing working components.
Repair damaged, corroded, or incorrectly wired HVAC control and power circuits.
Diagnose and repair HVAC power supply issues, breakers, disconnects, and line-voltage components.
Correct overcurrent or undersized circuit conditions causing tripped breakers or component damage.
Recover HVAC systems stuck in lockout, error states, or post-power-surge conditions.
Trace and repair 24V control circuit faults, shorts, opens, and incorrect wiring between thermostat and equipment.
Repair or replace outdoor AC disconnect boxes, fuses, and weatherhead connections.
Replace deteriorated flexible conduit and wiring connections at outdoor AC units.
HVAC Control Components
Diagnose and repair HVAC control system failures including boards, relays, and communication wiring.
Full system calibration, thermostat, controls, and equipment operating parameters aligned and verified.
Calibrate system staging, fan delays, and operating behavior for your specific comfort and efficiency goals.
Calibrate control signals between thermostat and equipment, staging, modulation, and communication signals.
Replace failed 24V control transformers, the power supply for the entire low-voltage control circuit.
Replace failed relay boards that control equipment staging and multi-zone operation.
Install safety disconnect switches for code compliance and service safety on HVAC equipment.
Replace aquastat controls on hydronic and boiler systems that regulate water temperature.
Install and configure zone control panels for multi-zone HVAC systems.
Install outdoor temperature sensors for weather-compensating controls and smart thermostat systems.
Correcting Undersized and Overloaded Circuits
Every piece of HVAC equipment has a nameplate specifying its minimum circuit ampacity, the smallest wire gauge and breaker size the circuit can safely use, and its maximum overcurrent protection, the largest breaker or fuse allowed on that circuit. Circuit load problems happen when the actual installed wiring or breaker doesn't match these values, either because the circuit was undersized from the start, because equipment was upgraded without updating the circuit to match its higher draw, or because added loads were tapped onto a circuit that didn't have spare capacity.
We see this most often after equipment upgrades, a homeowner replaces an aging 2-ton condenser with a more efficient 3.5-ton unit, and the new equipment's higher minimum circuit ampacity exceeds what the existing wire gauge and breaker were sized for. The symptoms are usually intermittent at first, a breaker that trips only on the hottest days when the compressor is working hardest, or wiring that runs noticeably warm to the touch at the disconnect or panel. Left uncorrected, an undersized circuit causes voltage drop under load, which makes the compressor work harder and run hotter than it should, shortening its life even if the breaker never actually trips.
Our correction process starts with pulling the actual nameplate data from the installed equipment and comparing it against the existing breaker size and wire gauge feeding the circuit, measured at the panel and again at the disconnect to check for any splices or gauge changes along the run. If the circuit is undersized, we run new wire sized to the equipment's minimum circuit ampacity and install a breaker within the equipment's maximum overcurrent protection range, never simply upsizing the breaker without also upsizing the wire, which just trades a nuisance trip for a genuine fire hazard.
Georgetown's summer peak loads mean undersized circuits reveal themselves during the hottest stretches of July and August, when compressors draw their highest locked rotor and running amperage and voltage drop across a marginal circuit becomes significant enough to trip a breaker that behaved fine in milder weather. We also check for shared circuits, occasionally we find HVAC equipment sharing a circuit with something unrelated like a garage outlet or attic fan, which compounds load issues in ways that are easy to miss without pulling the actual panel schedule and confirming what's on each breaker.
Frequently Asked Questions, HVAC Circuit Load Correction
HVAC Electrical or Thermostat Issue?
We trace faults to the actual source, not replace parts until something works.