RV AC Not Cooling

Your RV AC is running but not blowing cold air. We diagnose and fix the root cause — capacitors, refrigerant, compressors, and more.

Service Details

Why Your RV AC Is Blowing Warm Air

A running AC that is not cooling is one of the most common calls we get, especially from June through September. The causes range from simple (dirty filter, bad capacitor) to complex (compressor failure, refrigerant leak).

Angela Hart handles most of our AC diagnostics. She can usually pinpoint the issue within 30 minutes using systematic testing — checking capacitors, amp draw, refrigerant pressure, and airflow.

Capacitor testing and replacement
Refrigerant pressure check and recharge
Compressor amp draw testing
Condenser and evaporator coil cleaning
Fan motor diagnosis
Thermostat calibration

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RV AC unit repair — diagnosing why AC is not cooling

Technician at work — Sebastian RV Repair mobile repair service

Warning Signs

When to Call for Help

Do not wait until a small issue becomes a big problem. Here are signs you need professional service:

Common AC repairs range from $150 for a capacitor swap to $400-800 for compressor work. Full unit replacement runs $800-1,800 installed. We always discuss repair vs. replace before starting work.

What Does This Cost?

Dometic, Coleman, Advent, Furrion, ASA Electronics, GE, and all other major RV AC manufacturers. We carry common Dometic and Coleman parts on our trucks.

Brands We Service

['AC runs but blows warm or lukewarm air', 'AC cycles on and off frequently', 'Unusual noises from the rooftop unit', 'Ice forming on the AC coils', 'AC trips the breaker when it starts', 'Weak airflow from the vents']

Our $185 service call covers the trip and full diagnosis. If you proceed with the repair, it is applied to your total. Call (772) 238-8487 or request a free estimate online.

Quick Answer — RV AC Not Cooling

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Who: Sebastian RV Repair — honest mobile RV technicians since 2010, led by Luis Morales

What: AC/heating, electrical, roof, slide-out, plumbing, inspections, and more

Where: Sebastian, Vero Beach, Fort Pierce, Fellsmere — all of Indian River County

Cost: $185 service call (trip + diagnosis); applied toward repair total

Rating: 4.8 stars, 39+ verified reviews

Specialties: AC/heating systems and electrical — our primary expertise

Phone: (772) 238-8487

Hours: Mon-Fri 7:30am-6pm, Sat 8am-3pm