RV Electrical Repair in Washington
RV electrical problems are frustrating because the symptom is rarely where the fault is. Poulsbo RV troubleshoots both the 12-volt house system and the 120-volt shore power system in travel trailers, fifth wheels, and motorhomes across Washington, from dead outlets to converters that won’t charge.
Signs of an RV Electrical Problem
Electrical faults show up in a lot of different ways:
• Lights or outlets that don’t work, or work intermittently
• The house batteries won’t charge or drain overnight
• Breakers or fuses that trip or blow repeatedly
• Appliances that won’t run on shore power
• Dim or flickering 12-volt lights
• A burning smell or warm outlets and connections
Why RV Electrical Systems Fail
An RV runs two electrical systems at once, and most problems live at the junction between them. A failing converter or charger leaves the house batteries dead. Corroded ground connections, which are common in damp Washington conditions, cause flickering lights and phantom faults that move around. Loose connections at the battery, the distribution panel, or behind outlets create resistance, heat, and intermittent failures. Old or sulfated batteries mimic a charging problem. Because everything shares grounds and busbars, one bad connection can make several unrelated things misbehave.
Our RV Electrical Services
• 12-volt house system troubleshooting
• 120-volt shore power and breaker panel repair
• Converter and charger diagnosis and replacement
• Inverter installation and repair
• Battery testing, replacement, and bank upgrades
• Wiring, outlet, and fixture repair
• Corroded ground and connection repair
Our Electrical Repair Process
1. We reproduce the fault and test both the 12V and 120V systems
2. We trace the circuit to the actual source, not just the symptom
3. We check grounds, connections, the converter, and the batteries
4. We provide a written estimate before repair
5. We make the repair and verify the circuit under load
6. We confirm the system charges and holds power correctly
Why Electrical Faults Need Prompt Attention
Electrical problems carry a fire risk that other RV repairs don’t. Warm outlets, a burning smell, and repeatedly tripping breakers are warnings that a connection is failing and generating heat. Beyond safety, a converter that isn’t charging will kill an expensive battery bank, and chasing intermittent faults yourself can mean replacing good parts. A proper diagnosis finds the real fault the first time.
How to Keep Your RV Electrical System Healthy
• Keep battery terminals clean and connections tight
• Check the house batteries’ charge and water level regularly
• Don’t overload circuits by running too many appliances at once
• Inspect the shore power cord and plug for damage
• Address tripping breakers rather than just resetting them
• Have grounds and connections inspected if faults come and go
Frequently Asked Questions
Why Won't My RV batteries Hold a Charge?
The cause is usually a failing converter or charger, old sulfated batteries, or a parasitic draw. We test the charging system and the batteries to tell which it is.
My Outlets Work on Shore Power But Not the Inverter. Why?
Only certain outlets are typically wired to the inverter, or the inverter itself may have failed. We trace the circuit to find out.
Is a Breaker That Keeps Tripping Dangerous?
It can be. A breaker trips to protect against overload or a short, so repeated trips mean something is wrong. It should be diagnosed, not just reset.
Can You Upgrade my RV to Lithium Batteries?
Yes. We can test your needs and upgrade your battery bank, including any converter or charging changes that lithium requires.
Why Do My Lights Flicker?
Flickering 12V lights usually trace to a loose or corroded ground connection, which is common in damp climates. We locate and repair the connection.
Ready to Get your Electrical Repair Taken Care of?
Schedule your appointment at one of our locations.
Everett
12218 Highway 99 S
Everett, WA 98204
1-888-960-9629
Sumner
2006 136th Ave. E.
Sumner, WA 98390
888-960-8691
Mt. Vernon
510 Eleanor Lane
Mt. Vernon, WA 98273
866-706-1274
Kent
23031 Military RD. S.
Kent, WA 98032
1-888-960-0627
RV Collision
Kent
Everett
Mt. Vernon
Why Choose Poulsbo RV?
With convenient service centers, expert service RV technicians, and a knowledgeable support staff, you’re never alone on the road when you’re part of the Poulsbo RV family.
We serve RV owners throughout the Puget Sound region and beyond — including Seattle, Tacoma, Everett, Bellevue, Kent, Olympia, Sumner, and Mount Vernon.

