AC Blows Warm Air
The unit runs but the cabin barely cools, often from a weak capacitor, a dirty coil, or restricted airflow.
Mobile Rooftop AC Service
RV AC Repair in Georgetown, TX
Mobile RV air conditioner repair for rooftop units, at your Georgetown campsite, driveway, or storage lot.
RV AC repair in Georgetown, TX starts with a simple question: is the unit failing, or is the heat winning? When Georgetown afternoons climb into the upper 90s, a healthy rooftop unit can only cool the cabin so far below the outside air, so we measure supply voltage, capacitor health, fan motor draw, and temperature drop before recommending a repair. We work at Lake Georgetown campsites, driveways, and storage lots off I-35 and SH 29.
Rooftop Unit Diagnostics
Dometic and Coleman-Mach Units
Voltage and Temperature Drop Tested
Measured, not guessed
What We Measure Before Replacing an RV AC Unit
Most no-cool complaints come down to a short list of causes, so we test in a fixed order: voltage at the unit, the run capacitor, the fan motor, and the temperature difference between return and supply air. A rooftop unit that shows a drop of roughly 15 to 20 degrees is doing its job. A smaller drop points to airflow or a failing component, not to a unit that needs replacing.
A typical call: a travel trailer at a Georgetown storage lot, the unit humming but the cabin stuck near 85 degrees on a 98 degree afternoon. The technician finds normal voltage, a swollen run capacitor, and a fan that barely turns. After the capacitor is replaced, the unit runs through a full cooling cycle with the supply air measured before the visit ends.
Common RV AC problems
RV AC Problems We Diagnose Around Georgetown
AC Won't Turn On
No response at the thermostat usually traces to a tripped breaker, low voltage at the pedestal, or a failed control board.
Breaker Trips on Start
The compressor start surge trips a 30-amp breaker or overloads a small generator, most often on the hottest afternoons.
AC Freezes Up
Ice on the coil after long runs usually points to restricted airflow or a dirty filter.
Water Dripping Inside
Condensation reaching the ceiling comes from a blocked drain pan or a shroud gasket that has lost its seal.
Hail-Damaged Shroud
Central Texas spring hail can crack the plastic shroud and bend fins, letting water reach the unit.
How we fix it
How We Diagnose and Fix RV AC Units in Georgetown
We start with a meter and a thermometer rather than a parts guess. Supply voltage, run capacitor, fan motor, thermostat, and the temperature drop between return and supply air are checked in order, and ducted systems get an airflow check at the vents. Dometic and Coleman-Mach are two of the most common RV air conditioner brands, and we work on both. Whether your RV is parked in a Wolf Ranch or Sun City driveway, or staged at a Lake Georgetown campsite, the technician comes to you.
- Measure voltage, capacitor, and fan motor draw at the unit
- Replace capacitors, thermostats, and control boards on site
- Check airflow through ducts, filters, and the drain pan
Sub-services
RV AC Services We Handle On Site
Our Georgetown RV AC repair service covers:
- Rooftop AC Unit Repair and Replacement
- Run Capacitor Replacement
- Fan Motor Repair
- Thermostat and Control Board Replacement
- Dometic and Coleman-Mach Service
- Ducted AC Airflow Repair
For everything else that keeps a rig running, see our Georgetown mobile RV repair homepage, or read about RV Appliance Repair and RV Generator Repair.
RV AC Quit in Georgetown? Let Us Test It.
Call 737-340-2111 or send the form with your RV make and what the AC is doing, and we will schedule RV AC repair at your Georgetown site.