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Trane AC Not Cooling — Why It Runs But Won’t Cool Your Home

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When your Trane air conditioner is running but your home isn't cooling down, it is one of the most frustrating situations a St. Louis homeowner can face — especially in the middle of a July heat wave. The system is on, the outdoor unit is running, but the house stays warm. This guide covers every …

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Trane AC Capacitor Failure — Symptoms, Causes, and Repair

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The capacitor is one of the most commonly failed components in a Trane air conditioner or heat pump — and fortunately, one of the most affordable and quickest to repair. A failed capacitor can prevent the outdoor unit from starting, cause the compressor to run inefficiently, or leave the condenser fan stopped while the compressor …

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Trane AC Fault Codes and Troubleshooting Guide

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Trane air conditioners and heat pumps use a diagnostic flash code system to communicate faults to technicians and homeowners. When your Trane AC stops cooling, short cycles, or refuses to start, the system's control board is often already telling you exactly what went wrong — if you know how to read it. This guide covers …

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Frequently Asked Questions: Homeowner’s Guide to AC

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These frequently asked questions are essential for homeowners to ask themselves when maintaining their indoor air quality. If you have questions about your air conditioner or need professional service, working with a trusted local HVAC company makes a difference. Thomas Hoffmann Air Conditioning & Heating LLC provides reliable AC repair, maintenance, and installation services for …

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Signs Your Air Conditioner Is About to Fail

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Here are some apparent signs that your air conditioner is about to fail. Schedule a consultation with Hoffmann Air Conditioning today. Your air conditioner is one of the most important systems in your home during the hot and humid St. Louis summers. But like any mechanical equipment, an AC system doesn’t last forever. Most air …

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Why Does My AC Keep Turning Off and On?

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If your air conditioner keeps turning on and off every few minutes, it’s usually a sign that something isn’t working correctly. This issue is commonly known as AC short cycling, and it can lead to higher energy bills, reduced comfort, and unnecessary wear on your HVAC system. For homeowners in St. Louis, short cycling is …

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