Pressure washer repairs can be difficult to solve if you don’t understand the basic principles and functions of pressure washers. 
Pressure washer repairs generally involve replacing rings, piston rod seals or replacing the packing’s, but some pressure washer repairs can be solved without taking apart the entire pump. A lot of the pressure washer repairs come down to basics, insufficient water flow to the pump. This could be caused by a blocked screen or filter, a crimped hose or something minor. If you notice that your pressure washer is leaking water or oil, stop using it immediately and bring it in to our shop for pressure washer repairs. If you continue to use the pressure washer repairs might not be an option because pumps on pressure washers are water cooled. When they don’t have water actively flowing through them in enough volume the damages can be extensive.
Pressure washer repairs in Maryland
Sun Brite Supply in Maryland is a full service pump repair, and pressure washer repairs facility. We can repair or rebuild the actual pump assembly, and service both gas and electric engines. In addition to pressure washer repairs, we also perform routine maintenance on all equipment to keep it running at peak performance. Our pressure washer repairs mechanics can also tune up and repair gas and electric engines and perform oil changes.
pressure washer repairs for hot and cold water Pressure Washers
We carry replacement parts for most manufacturers, hoses, quick connects, tips, guns, unloaders and other pressure washer repairs parts! Our pressure washer repairs mechanics can repair hot water pressure washers, and all types of cold water pressure washers to ensure their safe operation and to keep up with manufacturers warranties.
Sun Brite Supply in Maryland’s pressure washer repairs and services
In most cases, pressure washer repairs involve pump failure, usually as result of improper installation or operation rather than normal wear. One of the most common causes of pressure washer repairs is pump failure, from improper or unnecessary service, often as a result of the operator attempting the service. Most contractors end up damaging the packings, rings or pistons, when they attempt their own pressure washer repairs. Usually it’s a result of not having the right tools for performing pump or pressure washer repairs.
If your considering attempting your own pressure washer repairs in Maryland, use this chart to determine the problem first, then if it’s not something your very familiar with, leave the pressure washer repairs to a professional mechanic!
Diagnosing pressure washer repairs
| Problem | Probable Cause | Solution |
| Oil Leak Between Crankcase and Pumping Section | Worn crankcase piston rod seals. | Replace crankcase piston rod seals. Bring this unit to our Maryland pressure washer repairs service center. |
| O-rings on plunger retainer worn. | Replace o-rings. | |
| Frequent or Premature Failure Of the Packing | Scored, damaged or worn plunger. | Replace plungers. Bring this unit to our Maryland pressure washer repairs service center. |
| Overpressure to inlet manifold. | Reduce inlet pressure. | |
| Abrasive material in the fluid being pumped. | Install proper filtration on pump inlet plumbing. | |
| Excessive pressure and/or temperature of fluid being pumped. | Check pressures and fluid inlet temperature; be sure they are within specified range. | |
| Over pressure of pumps. | Reduce pressure with gauge, or bring this unit to our Maryland pressure washer repairs service center. | |
| Ran without water. | Do not run pump without water. | |
| Pump Runs but Produces no Flow | Pump is not primed. | Flood suction then restart pump. |
| Pump Fails to Prime | Air is trapped inside pump. | Disconnect discharge hose from pump. Flood suction hose, restart pump and run pump until all air has been evacuated. |
| Pump Loses Prime, Chattering Noise, Pressure Thread Fluctuates | Air leak in suction hose or inlet fittings. | Remove suction line and inspect it for a loose liner or debris lodged in hose. Avoid all unnecessary bends. Do not kink hose. |
| Clogged suction strainer. | Clean strainer. | |
| Low Pressure at Nozzle | Unloader valve is bypassing. | Make sure unloader is adjusted properly and bypass seat is not leaking. Bring this unit to our Maryland pressure washer repairs service center. |
| Incorrect or worn nozzle. | Make sure nozzle is matched to the flow and pressure of the pump. If the nozzle is worn, replace. | |
| Restricted intake. | Refer to above priming information or bring this unit to our Maryland pressure washer repairs service center. | |
| Pump is Noisy | Pump sucking air. | Check suction manifold. |
| Pressure Gauge Fluctuates | Valves worn or blocked by foreign bodies. | Clean or replace valves. Bring this unit to our Maryland pressure washer repairs service center. |
| Packing worn. | Replace packing. Bring this unit to our Maryland pressure washer repairs service center. | |
| Pumped liquid temperature too high. | Reduce temperature of pumped liquid. | |
| Over Pressure When Gun is Closed . | Leaking in unloader valve and incorrect setting. | Control the valve and set new pressure level. |
| Pulsation | Faulty pulsation damper. | Check pre-charge; if low, recharge it or install a new one. |
| Low Pressure | Worn nozzle. | Replace with nozzle of proper size. |
| Belt slippage. | Tighten or replace with correct belt. | |
| Air leak in inlet plumbing. | Disassemble, reseal and reassemble. | |
| Relief valve stuck, partially plugged or improperly adjusted valve seat worn. | Clean and adjust relief valve; check for worn or dirty valve seats. | |
| Inlet suction strainer clogged or improperly sized. | Clean. Use adequate size. Check more frequently. | |
| Worn Packing. Abrasives in pumped in cavitation. Inadequate water. | Install proper filter. Suction at inlet manifold must be limited to lifting less than 20 feet of water or 8.5 psi vacuum. | |
| Fouled or dirty inlet or discharge valves. | Clean inlet and discharge valve assemblies. | |
| Worn inlet, discharge valve blocked or dirty. | Replace worn valves, valve seats and/or discharge hose. | |
| Leak in the discharge line. | Repair leak. | |
| Pump Runs Extremely Rough, Pressure Very Low | Restricted inlet or air entering the inlet plumbing. Proper size inlet plumbing; | Check for air tight seal. Bring this unit to our Maryland pressure washer repairs service center. |
| Inlet restrictions and/or air leaks. Stuck inlet or discharge valve. | Clean out foreign material. Replace worn valves. Replace worn cup or cups. | |
| Water Leakage From Under Manifold. Slight Leakage | Worn packing. | Install new packing. Bring this unit to our Maryland pressure washer repairs service center. |
| Oil Leaking in the Area of Crankshaft | Worn crankshaft seal or improperly installed oil seal o-ring. | Remove oil seal retainer and replace damaged o-ring and/or seals. Bring this unit to our Maryland pressure washer repairs service center. |
| Bad bearing. | Replace bearing. Bring this unit to our Maryland pressure washer repairs service center. | |
| Excessive Play in the End of the Crankshaft Pulley | Worn main bearing from excessive tension on drive belt. | Replace crankcase bearing and/or tension drive belt. |
| Water in Crankcase | Humid air condensing into water inside the crankcase. | Change oil intervals. Use any high grade automotive 30 weight non-detergent oil. |
| Worn packing and/or piston rod sleeve, o-rings on plunger retainer worn. | Replace o-rings. Replace packing. Bring this unit to our Maryland pressure washer repairs service center. | |
| Oil Leaking from Underside of Crankcase | Worn crankcase piston rod seals. | Replace seals. Bring this unit to our Maryland pressure washer repairs service center. |
| Oil Leaking at the Rear Portion of the Crankcase | Worn crankcase piston rod seals. | Replace seals. Bring this unit to our Maryland pressure washer repairs service center. |
| Loud Knocking Noise in Pump | Pulley loose on crankshaft. | Check key and tighten set screw. |
| Broken or worn bearing. | Replace bearing. Bring this unit to our Maryland pressure washer repairs service center. |
Our reputation for building the best pressure washing trailers has attracted clients from all over the United States. Many of our commercial pressure washers have been in service for years with just basic maintenance.
Our 30 day warranty on pressure washer repairs
Besides our 30 day warranty we also have some of the lowest prices around for pressure washer repairs.
So the next time you need pressure washer repairs in Maryland, visit Sun Brite Supply!
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