RV Thermostat Repair
Stuart, FL
Stuart RV Repair fixes and replaces RV thermostats on-site across Stuart, FL and Martin County. Analog, digital, Dometic CCC2. Wiring, calibration, and upgrades. We come to you.
Stuart RV Repair fixes and replaces RV thermostats on-site across Stuart, FL and Martin County. Analog, digital, Dometic CCC2. Wiring, calibration, and upgrades. We come to you.
Stuart RV Repair fixes and replaces RV thermostats on-site. Analog dials, digital displays, and Dometic CCC2 controllers. Wiring repairs, calibration, and full upgrades from analog to digital. $80-350 depending on the job. We come to you anywhere in Stuart, FL and across the Treasure Coast. Call 772-280-3915. Need other A/C and heating repairs? We handle those too.
RV thermostats aren't like the smart WiFi models in your house. They're simpler, but they're also more prone to problems because of the environment they live in. Vibration from driving, temperature swings, humidity, and basic wear on cheap dial mechanisms all take their toll. We see thermostat issues year-round in Stuart, but they peak during season changes when people switch from AC to heat or vice versa.
There are three main types we deal with. Old-school analog thermostats with a dial and a slide switch for heat/cool/off. Digital thermostats with an LCD screen and push buttons. And the Dometic CCC2 (Comfort Control Center), which is a multi-zone controller that talks to Dometic rooftop AC units through a proprietary data cable. Each type fails differently and needs a different approach.
Here's what most people don't realize: about 30% of the time when someone calls us thinking their AC or furnace is broken, the thermostat is actually the problem. A bad connection behind the thermostat, a failed output relay, or a miscalibrated temperature sensor can make it look like your AC or furnace died when it's actually fine. That's why we always test the thermostat first before climbing on the roof.
Lost 12V power is the usual cause. Check if the house batteries are charged and the thermostat fuse is good. If both are fine, there's a wiring break between the fuse panel and the thermostat. On digital models, the internal board can also die. We trace the circuit and find the break. Wiring fix is $80-150.
The display side works but the output relay that sends signal to the rooftop AC has failed. Or there's a break in the wire between the thermostat and the rooftop unit. We test voltage at the thermostat output terminals. If there's voltage leaving the thermostat but the AC still doesn't respond, the problem is upstream at the unit.
Analog thermostats use a bi-metal coil that drifts with age. There's no way to recalibrate most of them. If yours is reading significantly off, it's time for a replacement. We usually recommend upgrading to a digital unit for $150-250. Better accuracy, programmable features, and it'll actually display the real temperature.
The CCC2 talks to the rooftop unit through a data cable that runs from the wall thermostat up through the ceiling to the AC unit. If that cable gets pinched, corroded, or disconnected, you get communication errors. We check the cable, the connectors at both ends, and the board inside the CCC2. Sometimes a firmware reset fixes it. Sometimes the unit needs replacing.
The thermostat's temperature sensor has failed or shifted. It thinks the RV is hotter than it actually is, so it never tells the AC to stop. On some models, the sensor is inside the thermostat. On others, it's a remote probe. We test the sensor resistance and replace or relocate it if needed.
This is one of the most common requests we get. Most RV analog thermostats use a standard 4-wire or 6-wire connection that's compatible with digital replacements. We match the wiring, mount the new unit, and program it. Takes about 30-60 minutes. You get real temperature readings and programmable schedules for $150-250.
Every RV thermostat type has its own wiring, failure modes, and replacement options. Here's what we service most in Stuart and across Martin County.
The basic dial-and-switch thermostats you find in most travel trailers and older motorhomes. Brands like Coleman, Duo-Therm, and generic RV models. They work on simple contact switches, no electronics. When they fail, it's usually the contacts corroding or the bi-metal coil going out of calibration. Cheap to replace at $100-180 installed, but we usually recommend stepping up to digital for the accuracy alone.
Mid-range units with an LCD screen, push-button controls, and a real temperature sensor. Brands like Micro-Air EasyTouch, Coleman digital, and aftermarket options. These give you actual temperature readings, heat/cool mode selection, fan speed control, and sometimes programmable schedules. The wiring is usually compatible with analog connections. A popular upgrade at $150-250 installed.
The CCC2 is Dometic's proprietary multi-zone thermostat. It controls both AC and heat pump functions through a digital data cable to the rooftop unit. Newer models have Bluetooth connectivity for phone app control. These are more complex than standard thermostats and cost more to replace ($250-350), but they offer zone control and advanced features that standard thermostats can't match.
If your rooftop AC has a heat pump function (like the Dometic Penguin II Heat Pump), you need a thermostat that supports heat pump mode. Not all thermostats do. We make sure the replacement matches your system's capabilities. A wrong thermostat on a heat pump system means you lose the heat pump function entirely, which matters on those 45-degree Stuart mornings.
Call 772-280-3915 or request a quote. Tell us what's happening - blank screen, wrong temp, AC or furnace not responding. Let us know the thermostat brand if you can see it. We schedule same or next day across Stuart and Martin County.
Our tech checks wiring, tests voltage at the terminals, verifies communication with the rooftop AC and furnace, and checks calibration. Most thermostat diagnostics take 15-20 minutes. We'll tell you whether it's a wiring issue, a failed thermostat, or something else entirely.
We carry common replacement thermostats on the truck. A wiring fix takes 20-30 minutes. A full thermostat replacement or upgrade is 30-60 minutes. We verify the AC and furnace respond correctly before leaving so you know everything works.
| Repair Type | Price Range | Typical Time |
|---|---|---|
| Wiring repair / connection fix | $80-150 | 20-40 min |
| Analog thermostat replacement | $100-180 | 20-30 min |
| Digital thermostat upgrade | $150-250 | 30-60 min |
| Dometic CCC2 replacement | $250-350 | 45-90 min |
| Temperature sensor calibration | $60-100 | 15-30 min |
| Zone board / relay repair | $120-220 | 30-60 min |
Thought our AC was dead because nothing happened when we turned the thermostat down. The tech checked the thermostat first and found a corroded wire behind the wall plate. Fixed the connection, tested the AC, and it worked perfectly. Total cost was $95. We were convinced we needed a new AC unit.
Had the old dial thermostat upgraded to a digital one. Now I can actually see what temperature it is inside the rig. The tech wired it in clean, mounted it where the old one was, and showed me how the programming works. Worth every penny of the $185.
Our CCC2 went completely blank. The tech traced it to a pinched data cable in the ceiling where a slide-out mechanism was rubbing on it. Rerouted the cable, tested everything, and the CCC2 came right back. Would have never found that ourselves.
RV thermostat repairs in Stuart run $80-350 depending on the issue. A wiring repair is $80-150. A basic analog thermostat replacement costs $100-180. A digital thermostat upgrade runs $150-250. A Dometic CCC2 replacement is $250-350. We give you an exact quote on-site before starting any work.
A blank thermostat usually means it's lost 12V power. Check if the house batteries are charged and if the thermostat fuse in the distribution panel is intact. If the fuse is good and batteries are charged, the issue is likely in the wiring between the panel and the thermostat. On digital models, a failed control board inside the thermostat can also cause a blank screen.
Yes, and we do this upgrade constantly. Most RV analog thermostats can be swapped for a digital model with better temperature accuracy and programmable settings. The wiring is usually compatible. A digital upgrade runs $150-250 installed. If you have a Dometic system, we can install their CCC2 or the newer Bluetooth-enabled models.
The Dometic CCC2 (Comfort Control Center 2) is a multi-zone digital thermostat that controls both the rooftop AC and the furnace. It communicates through a special data cable. If your CCC2 screen goes blank or shows error codes, it's usually a communication cable issue or a failed board inside the thermostat. Replacement CCC2 units run $250-350 installed.
Analog thermostats drift over time and have no way to self-calibrate. If yours reads 5-10 degrees off, it's probably worn out. Digital thermostats can also read wrong if the sensor is too close to a heat source like a window with direct sun or a vent. We check sensor placement and calibration during every thermostat service call.
If the display works but nothing happens when you adjust settings, the output side of the thermostat has failed, or the wiring between the thermostat and the AC/furnace has a break. We test voltage at the thermostat terminals and trace the wiring to find the issue. About 30% of the time it's not the thermostat at all, it's a connection at the rooftop unit.
We handle all RV A/C and heating repairs - rooftop units, capacitors, furnaces, thermostats, and ductwork. If you've got multiple climate control issues, we bundle them into one visit across Stuart and the Treasure Coast.
We cover Martin, St. Lucie, and Palm Beach counties for all RV thermostat work. From Stuart and Palm City to Jensen Beach, Hobe Sound, and down to Jupiter.
Call us or request a free estimate. Whether it's a wiring fix, a digital upgrade, or a CCC2 replacement, we handle it on-site. Same-day mobile service across the Treasure Coast.