Refrigerant Leak Repair
A slow leak reduces cooling ability over weeks or months. We locate the leak, repair the line, flush the system, and recharge the refrigerant. Cost depends on leak location and size.
Fast Diagnosis, Fair Pricing, Reliable Cooling Restored
A broken air conditioner is more than an inconvenience — it's a comfort emergency in hot weather. When your Central AC stops cooling or isn't performing right, Harmon Heating & Cooling brings expert diagnostics and dependable repair service to Fishers, Westfield, Noblesville, and surrounding areas.
When you call with an AC failure, we ask: When did it stop? Does the compressor run but no cold air comes out? Is the system off entirely? These details help us understand whether the problem is electrical, refrigerant-related, or mechanical. Then we schedule a visit to diagnose in person and give you clear repair options.
Thinking about AC installation or replacement instead of repair? Or want to explore a ductless mini-split alternative? We can discuss all paths to restoring your cooling.
Fast, Expert Diagnosis
35+ Years of Experience
Honest Repair Guidance
Armstrong Air Certified
Local to Fishers
Catching any of these early usually means a smaller repair bill — and no summer days without cooling.
The system runs but your home isn't getting cold. This often signals a refrigerant leak, a clogged filter, or a failed compressor.
The AC runs for a few minutes, shuts off, then starts again. This pattern often indicates a thermostat problem, a refrigerant charge issue, or a failing capacitor.
Grinding, squealing, or rattling noises mean something inside is wearing out or loose parts are vibrating. Ignoring these sounds usually leads to more expensive failure.
The condensate drain is clogged or the pan is failing. Water damage to surrounding areas can result if not addressed quickly.
An AC system that's struggling to cool runs longer and consumes more electricity. A performance drop usually precedes a failure.
Older AC systems become less efficient and more prone to failure. If your system is 15+ years old and has failed before, replacement often makes more economic sense than repeated repairs.
Six steps from your first call to a system you've watched us test before we leave.
You describe what's happening — no cooling, unusual noise, frequent cycling, water pooling, etc. We use these details to prioritize your scheduling and arrive prepared.
Our technician examines the compressor, refrigerant lines, capacitors, blower, and electrical connections. We run the system and listen and feel for the specific failure. Diagnosis is thorough and takes time — we don't guess.
We show you what's wrong and explain repair vs. replacement honestly. If a repair will serve you well for another 5–10 years at reasonable cost, that's our recommendation. If the system is near end-of-life, we'll say so.
Once you approve the repair, we order parts (common parts are typically available quickly) and complete the work. We use manufacturer parts or quality equivalents and warrant our workmanship.
Before we leave, we run the system fully, verify that cooling is restored, and check electrical connections and refrigerant charge. You know the AC is working right before we pack up.
We show you how to check your filter, keep outdoor units clean, and recognize early signs of problems. Many AC failures are preventable with basic maintenance.
These are the failures we diagnose and repair most often on Central air conditioning systems.
A slow leak reduces cooling ability over weeks or months. We locate the leak, repair the line, flush the system, and recharge the refrigerant. Cost depends on leak location and size.
The compressor is the heart of the AC. When it fails, cooling stops. Replacement is one of the most expensive AC repairs, so we discuss whether repair or system replacement makes more sense.
A failed start or run capacitor prevents the compressor or blower from starting. It's one of the more straightforward repairs on an AC system, and we quote it before we proceed.
If the compressor runs but no air moves through your home, the blower motor or its fan has failed. Repair or replacement restores airflow.
A faulty thermostat sends wrong signals to the AC, causing frequent cycling or no cooling. Replacement fixes the problem quickly.
A dirty evaporator or condenser coil reduces cooling efficiency. Cleaning often restores performance; replacement is needed only when coils are mechanically damaged.
Corroded wires or loose connections can prevent the compressor from starting or cause it to cycle off prematurely. We repair connections and protect against future corrosion.
A clogged filter restricts airflow and makes the system work harder. We replace filters and check ducts for leaks that waste cooling.
Regular spring tune-ups prevent most AC failures — a trained technician spots worn parts, cleans coils, and verifies refrigerant charge before summer demand arrives. Our maintenance plan covers annual tune-ups that catch problems early and keep repair costs down.
A new HVAC system is a real investment, and Harmon Heating & Cooling works with Service Finance to help make that investment manageable. Whether you're replacing an aging furnace before winter or upgrading to a more efficient central AC system, financing options are available so an unexpected repair or planned upgrade doesn't have to wait.
Our team can walk you through financing options through Service Finance at the time of your estimate, so you know what to expect before any work begins.
Contact Us to ApplyDon't wait on a failing furnace or AC — get your system installed today and spread the cost into manageable monthly payments.
Flexible terms keep payments predictable, so a new system fits your budget instead of draining your savings all at once.
Financing makes it easier to step up to a more efficient Armstrong system that lowers your energy bills month after month.
We repair air conditioning systems across Central Indiana. Fishers is our home base and gets the fastest response times, with Westfield just west, Noblesville north and east, Fortville to the southeast, Pendleton to the south, and Carmel to the north.
Don't see your city listed? Harmon Heating & Cooling serves additional communities throughout Central Indiana beyond our primary service area — reach out and we'll let you know if we cover your address.
Ready to upgrade instead of repair? Not sure which service you need? These are the paths we can walk you through, and the same team handles all of them.
Don't spend another hot day without cooling. Call Harmon Heating & Cooling for fast, honest AC repair backed by 35+ years of experience.
Call 317-588-8303 to describe your cooling problem and schedule a repair visit.
