Stuart RV Repair diagnoses and fixes RV appliance wiring and control board problems on-site across Stuart, FL and Martin County. Fridge boards, microwave wiring, water heater electrical, A/C controls. We come to you.
Stuart RV Repair fixes RV appliance wiring and control boards on-site. Norcold and Dometic fridge boards, microwave wiring, water heater electrical, and A/C control board diagnosis and replacement. $100-500 depending on the appliance. We come to you anywhere in Stuart, FL and across Martin County. Call 772-280-3915. Need other RV electrical repairs? We handle those too.
Modern RV appliances don't run on simple switches anymore. Your fridge has a circuit board that manages gas/electric switching and temperature regulation. Your water heater has an electronic ignition board. Your A/C has a control board that talks to the thermostat. When these boards fail, the appliance stops working even though the mechanical components inside are perfectly fine. We see this every week across Stuart and Martin County, and it's one of the most frustrating issues for RV owners because the appliance looks fine but just won't do anything.
Beyond the boards themselves, the wiring that connects them fails too. RV wiring takes a beating from road vibration, temperature swings, and Florida humidity. Connectors corrode, wires rub through insulation against sharp metal edges, and mice love to chew through wiring harnesses during storage. A single corroded connector or chewed wire can take out an entire appliance, and it can be tough to find without the right testing equipment.
We carry diagnostic tools specific to RV appliances. We can read Norcold and Dometic error codes, test ignition board outputs, measure thermistor resistance, and check relay contact integrity. The goal is to find the specific failed component rather than guessing and swapping parts. That saves you money and gets the repair done right the first time.
The 120V heating element or the board relay that switches to electric mode has failed. Absorption fridges use completely separate heating paths for gas and electric. If gas works, the cooling unit is fine. We test the element resistance (should be 250-320 ohms on most Norcold units), check the board relay, and verify 120V is reaching the fridge. Usually it's the element or the board. $120-380 depending on which.
Norcold fridges have a safety system that shuts down the fridge if something's wrong. E1 means no AC to the element. E2 is high temp (possible cooling unit leak). E3 is a bad thermistor. We read the code, test the relevant circuit, and either replace the failed component or the board itself. Most board swaps run $200-380 installed. We carry the most common Norcold boards on the truck.
The electronic ignition board on Suburban and Atwood water heaters controls the igniter spark and flame sensor. When the board fails, you get no spark, or the spark fires but the gas valve doesn't open, or it ignites briefly then shuts down because the flame sensor isn't reading. We test the igniter output, flame sensor microamp reading, and gas valve solenoid to find the failed component.
The control board relay that activates the compressor may have failed, or the board isn't sending the start signal from the thermostat. On Dometic units, we test the relay output, capacitor, and thermostat input. On Coleman units, the board and thermostat use a different communication protocol. We diagnose which component is blocking the compressor from starting. Board replacements run $200-450 depending on the unit.
Power surges at RV parks happen more often than you'd think, especially in older campgrounds around the Treasure Coast. A surge can fry control boards in seconds. We see shore power surges take out fridge boards, A/C boards, and water heater boards all at once. We test each appliance board individually and replace what's fried. If you don't have a surge protector, we strongly recommend adding one.
Florida mice and rats love RV wiring insulation. They get in through the outside fridge vent and nest behind the fridge where it's warm. One chewed wire can disable the entire appliance. We trace the damaged wiring, repair or replace the harness, and seal the entry points. We see this at least twice a month in Martin County, especially in RVs that sit in storage during the off-season.
Every RV appliance brand uses different control boards and wiring configurations. Here's what we see most across Stuart and the Treasure Coast, and what tends to fail on each one.
Norcold absorption fridges are in probably half the travel trailers and fifth wheels we service. The control board manages gas/electric switching, temperature regulation, and safety shutdown. Common failures: the board relay that switches to electric mode sticks or burns out, the thermistor that reads temperature drifts out of range, or the high-temperature safety trips on a hot summer day. We carry boards for the N611, N811, and 1210 series.
Dometic fridges use a similar absorption design to Norcold but with different board architecture. The RM2852, RM2652, and DM2652 are the models we see most. Board failures show up as the fridge not cooling on electric, error codes on the display, or the burner cycling rapidly on gas. We test and replace boards, elements, and thermistors on all Dometic models. The newer Dometic fridges also have a thermal fuse that trips in Florida heat.
Suburban SW6DE and SW10DE models are the most common RV water heaters. Atwood (now Dometic) G6A and G10-2 are a close second. Both use electronic ignition boards that control the gas valve, igniter, and flame sensor. When the board fails, you get no ignition on gas mode. When the 120V element or its thermostat fails, electric mode stops working. We carry common boards and elements for both brands.
Dometic Brisk Air and Coleman Mach are the two most common RV rooftop A/C brands. Both use control boards that interface with the thermostat (either analog or the newer CCC2 digital controllers). Board failures cause the fan to run without the compressor, random shutoffs, or no response to thermostat commands at all. We replace boards, start capacitors, and run capacitors on both brands. Coleman boards run $200-350, Dometic boards $250-450.
Call 772-280-3915 or request an estimate online. Tell us which appliance isn't working. If you see error codes, blinking lights, or specific symptoms (works on gas but not electric, fan runs but no cooling), let us know. That helps us bring the right parts. We schedule same or next day in the Stuart area.
Our tech tests the control board, checks wiring connections, measures voltages at the appliance, and inspects for burned wires, corroded connectors, or rodent damage. You get a written estimate with the exact problem before we start any work. Most appliance diagnostics take 20-40 minutes.
We carry common control boards, heating elements, thermistors, wiring connectors, fuses, and relays on the truck. Most appliance wiring repairs finish in 1-2 hours. Board replacements with programming and testing take 1.5-2.5 hours. Your appliance is back online the same day.
| Repair Type | Price Range | Typical Time |
|---|---|---|
| Refrigerator control board (Norcold/Dometic) | $180-380 | 1.5-2 hrs |
| Refrigerator heating element | $120-220 | 1 hr |
| Microwave wiring repair / replacement | $100-200 | 1-1.5 hrs |
| Water heater ignition board | $150-300 | 1-1.5 hrs |
| A/C control board replacement | $200-450 | 1.5-2.5 hrs |
| Wiring harness repair (rodent/corrosion) | $80-200 | 1-2 hrs |
| Thermistor / sensor replacement | $60-130 | 30-45 min |
Norcold fridge in our fifth wheel kept throwing an E1 code. We reset it three times but it kept coming back. Tech came to our lot in Stuart, tested the board, and found the relay was shot. Had a replacement on the truck, swapped it in under two hours, and the fridge has been running perfectly for two months now. Worth every penny.
Mice had chewed through wiring behind our Dometic fridge during storage. What a mess. Tech traced every damaged wire, repaired the harness, replaced a destroyed connector, and sealed up the holes where the mice got in. Fridge works great again and no more unwanted guests. Really thorough work.
Suburban water heater in our Class C wouldn't ignite on gas. Tech diagnosed a failed ignition board at our spot in Jensen Beach. Replaced the board, tested the igniter and flame sensor, and had hot water running within an hour. Explained everything clearly and the bill matched the quote exactly.
Appliance wiring repairs in Stuart typically run $100-500 depending on the appliance. Fridge board replacement runs $180-380. Microwave wiring is $100-200. Water heater ignition board replacement is $150-300. A/C control board is $200-450. Simple fixes like corroded connectors or blown fuses run $80-150. We always give you a written estimate first.
Yes. Norcold error codes tell us what's failing. E1 means no AC voltage to the heating element. E2 is a high-temp cutoff. E3 is a thermistor failure. We diagnose the specific code, test the circuit, and replace the board or component causing it. Most Norcold board replacements run $200-380 and take about 1.5-2 hours on-site.
A microwave pulls 1,000-1,500 watts. If it's on a shared circuit, the combined load trips the breaker. Or the microwave has an internal short drawing excess current. We test the microwave current draw and circuit load to determine if it's a wiring issue, circuit overload, or failing microwave. If the circuit needs separating, we can run a dedicated line.
We do this regularly. Suburban and Atwood water heaters use electronic ignition boards that fail after 5-8 years. Symptoms include no hot water on gas, the burner cycling rapidly, or error lights. We carry common boards and can test igniter, flame sensor, and gas valve on-site. The board swap takes about an hour.
The 120V heating element or the board relay powering it has failed. Absorption fridges use separate heating paths for gas and electric. If gas works, the cooling unit is fine. We test element resistance, check the board relay, and verify 120V is reaching the fridge. Usually it's the element ($120-220) or the board relay ($180-380).
Common signs: A/C won't respond to the thermostat, fan runs but compressor won't start, error codes flash on the panel, or the unit cycles on and off rapidly. We test board outputs to the compressor relay, fan motor, and thermostat input. If the board isn't sending correct signals, it needs replacement. Dometic and Coleman boards run $200-450.
We handle all RV electrical repairs, from shore power and batteries to converters, slide-out motors, and full panel upgrades. Multiple electrical issues? We knock them all out in one visit across Stuart and Martin County.
We cover Martin County and surrounding areas for all RV appliance wiring and control board repairs. Stuart, Palm City, Jensen Beach, Hobe Sound, and beyond.
Call us or request a free estimate. We'll get a tech out to your site with the right parts, same or next day. Fridge boards, water heater boards, A/C controls, and full wiring diagnosis. All done at your campsite or driveway.