ELECTRICAL DIAGNOSTICS & REPAIRS

In Anne Arundel County

5-Star Service

Licensed & Insured

Same-Day Service Available

Locally Owned & Operated

Small electrical faults cause some of the most frustrating HVAC breakdowns — the ones that come and go with no obvious cause. Lighthouse HVAC diagnoses and repairs electrical issues at the source, tracing the real problem instead of swapping parts and hoping.

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ELECTRICAL DIAGNOSTICS & REPAIRS

Common Electrical Problems We Fix

Electrical issues are behind many sudden and intermittent HVAC failures — and they rarely fix themselves. Our technicians methodically trace the fault to its true source, so the repair solves the real problem instead of masking it.

Why Accurate Diagnostics Matter

With electrical faults, guesswork means wasted money and repeated breakdowns. Tracing the real cause protects your comfort, your safety, and your equipment.

Lower Energy Bills

Dependable Winter Heat

Unexpected System Failure

Energy Efficiency

Complete Ignition Diagnosis

Complete RTU Diagnosis

Upfront Pricing Approval

Professional Repair And Testing

Heat Restored

Our Process

What To Expect During Your Maintenance 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.

      EXCELLENT  
   Based on 107 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Kevin Brennan 
 
 
 
 Trustindex verifies that the original source of the review is Google. The tech who came out to clear drip line from ac unit was great and very efficient. Would use their service again if needed.  3 text messages for this survey in a week seems a little heavy. Doing this to stop the text messages.
  
 
      Posted on Google  
   
   Kenneth Turner 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent service. Great local company
  
 
      Posted on Google  
   
   Natalie Vowell 
 
 
 
 Trustindex verifies that the original source of the review is Google. Amazing work!!! Not only did the fit me in very quickly with same day service, but tech was able to fix my boiler instead of saying immediately (like other companies had) that I needed a new boiler saving me thousands!!
  
 
      Posted on Google  
   
   Mike Phelan 
 
 
 
 Trustindex verifies that the original source of the review is Google. My old heat pump went out in the middle of the summer heat.  Lighhouse came out right away and had me set up with a new heat pump within days.  Ronnie was great.
  
 
      Posted on Google  
   
   Jennifer Karns 
 
 
 
 Trustindex verifies that the original source of the review is Google. 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.
  
 
      Posted on Google  
   
   James Brown 
 
 
 
 Trustindex verifies that the original source of the review is Google. Worked non stop until it was done and were great to work with. Definitely this is the company to use.
  
 
      Posted on Google  
   
   C Jay 
 
 
 
 Trustindex verifies that the original source of the review is Google. Quick and friendly service! Thanks Lighthouse HVAC!
  
 
      Posted on Google  
   
   Connor Rickard 
 
 
 
 Trustindex verifies that the original source of the review is Google. 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.
  
 
  
  
 
    Verified by Trustindex  Trustindex verified that these reviews were published on Lighthouse HVAC LLC's Google Business Profile. Learn more

Catch Electrical Faults Before They Happen

Most electrical failures give off warning signs long before they leave you without comfort. The Lighthouse Annual Maintenance Plan includes thorough electrical testing at every visit, catching worn wiring, relays, and components before they cause a breakdown — season after season.

Still Have Questions? Let Us Help

How quickly can you schedule heating repairs?

Intermittent shutdowns are often electrical — a failing contactor, loose wiring, a weak capacitor, or a control board issue. Because they come and go, they can be tricky to diagnose. We test systematically to trace the fault to its true source rather than guessing and replacing parts that may not be the problem.

Do you offer emergency HVAC service?

Intermittent shutdowns are often electrical — a failing contactor, loose wiring, a weak capacitor, or a control board issue. Because they come and go, they can be tricky to diagnose. We test systematically to trace the fault to its true source rather than guessing and replacing parts that may not be the problem.

What size furnace do I need for my home?

Intermittent shutdowns are often electrical — a failing contactor, loose wiring, a weak capacitor, or a control board issue. Because they come and go, they can be tricky to diagnose. We test systematically to trace the fault to its true source rather than guessing and replacing parts that may not be the problem.

How long does a furnace replacement take?

Intermittent shutdowns are often electrical — a failing contactor, loose wiring, a weak capacitor, or a control board issue. Because they come and go, they can be tricky to diagnose. We test systematically to trace the fault to its true source rather than guessing and replacing parts that may not be the problem.

Serving Homeowners Throughout Anne Arundel County

Intermittent shutdowns are often electrical — a failing contactor, loose wiring, a weak capacitor, or a control board issue. Because they come and go, they can be tricky to diagnose. We test systematically to trace the fault to its true source rather than guessing and replacing parts that may not be the problem.

Tired of Mysterious Breakdowns?

Stop paying for guesswork that doesn't fix the problem. Schedule your electrical diagnostics today and get an honest, accurate diagnosis that finally solves it.