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SERVICES.Ductless Mini-Split

MINI-SPLIT REPAIR & TROUBLESHOOTING

In Anne Arundel County

5-Star Service

Licensed & Insured

Same-Day Service Available

Locally Owned & Operated

When your ductless mini-split stops cooling, won't heat, or starts leaking or flashing error lights, you need a technician who truly understands these systems. Lighthouse HVAC diagnoses and repairs mini-splits quickly and honestly — restoring comfort to the zone that needs it.

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Common Mini-Split Problems We Fix

Ductless systems are reliable, but when something goes wrong, they need a technician who knows them well. Whether a zone isn't cooling, water is dripping, or error lights are flashing, our technicians pinpoint the cause and restore performance the right way.

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Not Cooling or Heating

Water Leaking From Unit

Blinking Error Lights

Weak or Reduced Airflow

Uneven Temperatures Between Zones

Foul or Musty Odors

Strange Noises

Unit Not Responding

Why the Right Repair Matters

Ductless systems work differently from central HVAC, so they need a technician who understands them. A proper diagnosis protects your comfort, your efficiency, and every zone of your home.

Higher Utility Bills

Reduced Cooling Performance

Unexpected System Failure

Shortened Equipment Lifespan

01

Complete System Diagnosis

02

Clear Diagnosis & Recommendations

03

Upfront Pricing Approval

04

Professional Repair & Testing

05

Comfort Restored

Our Process

What To Expect During Your Repair Visit

Why Homeowners Choose Lighthouse

Experienced Technicians

Highly trained HVAC professionals.

Honest Recommendations

Solutions based on your needs.

Fast Response Times

Prompt scheduling and service.

Long-Term Reliability

Repairs focused on lasting performance.

What Homeowners Are Saying

See why local homeowners trust Lighthouse HVAC for repairs, maintenance, and indoor comfort solutions.

“What a great company this is. I called at 3:00 on a Friday afternoon and they had a tech in my area who was there at 6. He quickly diagnosed the problem and got us up and running again. Very friendly and professional all around. I highly recommend and will definitely use them in the future.”

-- Jennifer Karns

“Our furnace stopped working during one of the coldest nights of the year. Lighthouse HVAC arrived quickly, explained everything clearly, and had us warm again the same day.”

-- Sarah Ms

“I HIGHLY recommend this company! We were desperate, and they came to the rescue after hours so that my kids would be able to sleep in a cool house! I will use them for my business as well.”

-- Connor Rickard

Keep Every Zone Trouble-Free

Many mini-split problems — clogged drains, dirty filters, weak airflow — are easily prevented with routine care. The Lighthouse Annual Maintenance Plan keeps every zone clean and running smoothly, catching small issues before they interrupt your comfort, season after season.

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Still HaveQuestions? Let Us Help

Why is my mini-split leaking water?

The most common cause is a clogged condensate drain line, which backs up and drips from the indoor unit. It can also be a dirty filter or a refrigerant issue. It's worth addressing promptly to avoid wall or floor damage — we can clear the line and confirm what caused it.

Flashing lights are error codes that indicate a specific problem — anything from a sensor fault to a communication or refrigerant issue. Each manufacturer uses different codes, so an experienced technician is key. We read the code, diagnose the real cause, and fix it correctly.

Common causes include a dirty filter, low refrigerant, a failing sensor, or a blocked outdoor unit. Because mini-splits differ from central systems, proper diagnosis matters. We test the full system to find the exact cause rather than guessing or swapping parts unnecessarily.

A musty odor usually means moisture and mildew have built up inside the indoor unit or on the coil — common in humid Maryland summers. A thorough cleaning of the unit and drain system typically clears it up and keeps your air fresh and healthy.

Not always well. Ductless systems work differently from central HVAC and require specific knowledge to diagnose properly. Our technicians are experienced with mini-splits, so you get an accurate repair the first time instead of trial-and-error part replacement.

Serving Homeowners Throughout Anne Arundel County

Providing professional mini-split repair and troubleshooting across Annapolis, Severna Park, Crofton, Odenton, Glen Burnie, Arnold, Davidsonville, and surrounding communities.

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Mini-Split Acting Up?

Don't let a leak, error code, or dead zone drag on. Schedule your mini-split repair today and get a fast, knowledgeable fix from technicians who truly understand ductless systems.

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