Pressure Washer Repair in Farmington, MO
When your machine will not start, will not build pressure, or starts leaking from the pump, you need pressure washer repair from a shop that understands both the engine side and the water-pump side of the equipment. At Revolution Landscape Equipment & Supply, we repair gas pressure washers for homeowners, contractors, property managers, farms, and crews across Farmington, St. Francois County, and the wider Parkland region.
Common Problems and Causes
A pressure washer can fail in several different ways, and the symptom does not always point to one obvious part. A unit that "just needs a carb cleaning" might also have old fuel lines, a restricted inlet filter, a bad spark issue, or pump trouble. That is why proper diagnosis matters.
Won't Start
Often related to old fuel, carburetor restriction, fuel delivery issues, spark problems, a dirty air filter, low oil shutdown, or general lack of maintenance.
Low or No Pressure
Starts and runs normally but only produces garden-hose pressure. Caused by a worn pump, stuck unloader valve, damaged valves, or clogged nozzle.
Pulsing or Surging
Pressure comes and goes rapidly. Can be caused by a sticking unloader valve, restricted water flow, air in the pump, or engine speed fluctuations.
Water Leaking
Leaks may come from pump seals, fittings, inlet or outlet connections, thermal relief components, or freeze damage.
Soap Not Drawing
Often blamed on the pump, but usually caused by a clogged chemical injector, blocked pickup tube, or incorrect nozzle.
Smoking Engine
Smoke may come from oil overfill, a tipped unit, worn engine components, fuel mixture issues, or a dirty air filter.
The Two Sides of the Machine
A pressure washer is really two machines working together: a small engine and a high-pressure pump. The engine creates the power. The pump turns incoming water into high-pressure output. If either side has a problem, the entire unit can feel useless.
On the engine side, we diagnose carburetor, fuel, spark, air, and starting issues. Fuel issues are especially common because many pressure washers sit for months between uses. Old fuel can gum up the carburetor and restrict the tiny passages that allow the engine to run correctly.
On the pump side, we inspect the parts responsible for pressure, flow, and water control. These include seals, valves, unloader valve, nozzle, inlet filter, fittings, and the pump body itself. The unloader valve is one of the most important components—it controls pressure and redirects water when the trigger is released.
Pump Rebuild vs Pump Replace
Not every pressure washer repair needs the same solution. The right answer depends on the condition of the machine, the cost of parts, and how the unit is used.
A carb service usually makes sense when the engine is the main problem. If the unit will not start, only runs on choke, surges, or stalls, we inspect the fuel system and clean the carburetor properly.
Pressure washer pump repair is considered when the pump has serviceable components and the damage is limited. If seals, valves, or the unloader valve are the main issue, a rebuild may restore performance.
Pump replacement may be the smarter choice when the pump body is cracked, freeze-damaged, or badly worn. Freeze damage is especially common after winter storage if water was left inside the pump.
Winterization & Pump-Saver
Winter storage is one of the biggest reasons pressure washers fail in the spring. Water left inside the pump can freeze, expand, and damage seals, valves, and housings.
Winterization helps protect the pump and fuel system during cold months. Proper storage may include draining water from the pump, using pump-saver protection, and stabilizing or removing fuel.
Pump-saver products are designed to help protect internal pump components from freezing, corrosion, and seal drying during storage. They are especially helpful for machines that sit unused through Missouri winters.
What We Service
Revolution Landscape Equipment & Supply services gas pressure washers for homeowners and contractors. That includes machines used around homes, farms, rental properties, shops, trailers, equipment yards, construction sites, and landscaping operations.
We service most major engine brands. Homeowner pressure washers commonly come in for no-start issues, old fuel problems, low pressure, leaking pumps, soap draw problems, and seasonal tune-ups. Contractor pressure washers often come in for performance problems, worn pumps, leaking seals, and engine trouble from heavy use.
Our Repair Process
We keep the repair process straightforward. Drop off your pressure washer, or ask about pickup and delivery.
Drop off
at the Hwy 32 shop
Diagnose
find the real issue
Quote & Approve
you OK the work
Repair & Test
fixed & verified
Pick up
back to work
Why Choose RLES
RLES is a local repair-first shop in Farmington, MO. We understand that pressure washers are working equipment. When one fails, it interrupts chores, jobs, cleanup, property maintenance, and contractor schedules.
If you are comparing repair options, choose the shop that looks at both sides of the machine. Engine repair matters. Pump diagnosis matters. Water flow, nozzles, unloader valves, inlet filters, and hoses all matter.
Honest Diagnosis
We find the actual cause, whether it's the engine, the pump, or just a clogged nozzle, so you aren't paying for guesswork.
Clear Quotes
We explain what we found and what the repair involves. If a repair does not appear practical, we will tell you that too.
Service Area
Revolution Landscape Equipment & Supply provides pressure washer repair for Farmington, MO and surrounding communities across St. Francois County. Our service area includes Farmington, Park Hills, Desloge, Leadington, Bonne Terre, Ste. Genevieve, Fredericktown, Potosi, De Soto, and Ironton.
Customers can drop off equipment at our Farmington shop, or ask about pickup and delivery across the Parkland region.
Frequently Asked Questions
Get Your Pressure Washer Running Right
Drop off your unit at our Hwy 32 shop or ask about local pickup & delivery.