AC & Heating (HVAC) Repair in Orange County, CA
When the Southern California heat hits and your rooftop AC quits, you need help today. We service and repair Dometic, Coleman, Atwood, and Furrion rooftop units, ducted and non-ducted systems, thermostats, control boards, capacitors, fan motors, and RV furnaces. If it needs full replacement, we handle that on-site at your driveway, storage lot, or campsite.
Fully mobile — we come to your driveway, storage lot, or campsite. No towing needed.
Common Signs You Need AC & Heating (HVAC) Repair
If any of these sound familiar, give us a call — we can usually tell you over the phone how serious it is.
- The AC runs but the air coming out isn't cold
- You hear a loud buzz or rattle from the rooftop unit
- The AC trips the breaker shortly after starting
- The fan won't start but you hear a humming sound
- Ice builds up on the evaporator coils inside the cover
- The furnace ignites then shuts off within a minute
- The furnace blower runs but only blows cold air
Common Problems We Fix
Real failure modes we see on Orange County RVs — and how we repair each one.
Failed run capacitor
The single most common AC failure — fan or compressor hums but won't start. Quick on-site replacement gets cold air back the same visit.
Burned-out fan motor
Years of dust and bearing wear kill the fan motor. We replace with OEM-equivalent units rated for rooftop duty.
Bad control board or thermostat
Dometic CCC2 and similar systems are notorious for board failures. We diagnose with the actual diagnostic codes, not guesses.
Clogged evaporator and frozen coils
Dirty filters and coils cause icing, water leaks inside, and weak airflow. Deep clean restores capacity.
Refrigerant leaks and end-of-life compressors
Rooftop units aren't typically rechargeable — when the compressor or sealed system fails we replace the unit.
Furnace igniter, sail switch, and limit switch failures
Most furnace 'won't fire' calls are one of these three parts. We diagnose, replace, and verify the sequence of operation.
What Happens If You Ignore It
Small RV problems compound fast. Here's what we see when these issues get put off too long.
- Running an AC with a weak capacitor will burn out the compressor — turning a small repair into a full unit replacement.
- Ignoring a frozen evaporator drips water into your ceiling and damages the headliner and cabinetry below.
- A furnace that short-cycles can crack the heat exchanger, which is a carbon monoxide risk.
- Heat damages everything inside an RV — wood, adhesives, electronics, and tires — so a dead AC in summer accelerates wear on the whole rig.
What's Included
- Diagnostic & cleaning
- Capacitor & fan motor replacement
- Control board / thermostat repair
- Full AC unit replacement
- Furnace service
- Duct & vent repair
How We Fix It
- 1On-site diagnostic
We meter the capacitor, motor windings, control board, and thermostat to find the actual failure — no parts-cannon repairs.
- 2Repair or replace
Capacitors, motors, boards, and thermostats are usually fixed the same visit. Full unit swaps are 2–4 hours.
- 3Performance check
We measure supply vs return temperature, check amp draw, and verify the unit holds setpoint before we leave.
How Much Does AC & Heating (HVAC) Repair Cost?
Capacitor and thermostat repairs are the most affordable; fan motors and control boards are mid-range; full rooftop AC replacements are the highest tier and depend on whether you want a like-for-like swap or an upgrade to a heat-pump model.
We stock common 13,500 and 15,000 BTU units; specialty models are sourced within 1–2 days.
What affects the price
- Brand and BTU rating (13.5K vs 15K)
- Ducted vs non-ducted system
- Whether the existing wiring and shroud are reusable
- Travel distance for service
Why Choose Us for AC & Heating (HVAC) Repair
We service every major brand — Dometic, Coleman, Atwood, Furrion, Houghton
Full rooftop AC replacements done on-site in 2–4 hours
Real diagnostics with meters and manufacturer codes — not guess-and-swap
Open 7 days, 8 AM – 8 PM, including summer weekends when you need us most
Mobile AC & Heating (HVAC) Repair Across Orange County
- ✓ 26 years of hands-on RV experience
- ✓ All RV types — Class A/B/C, trailers, fifth wheels
- ✓ Honest, upfront pricing — no upsells
- ✓ Open 7 days a week, 8 AM – 8 PM
- ✓ Service throughout Orange County and a 30-mile radius from Anaheim