Power Washer Repair – How To Tackle It With Ease?

Pressure washers, also called power washers are the ideal kind of high pressure pumps recommended for use in jet cleaning stubborn stains, dust, dirt and grime from such diverse surfaces as concrete, steel, fiber, wood and glass. Besides, you can use it for cleaning roofs, railings, cars, trucks and even outdoor walls. The high pressure delivery of the water allows it to penetrate deep into crevices that you will find difficult in the normal case.

Several important parts and components form part of a fully assembled Power Washer to ensure its effective functioning under pressure. Powered by a gasoline run or an electric motor that is the prime mover of the pump, it builds up the pressure by compressing the water.

hot water pressure driveIn addition, you have a hose with a trigger to control the water spray in either short bursts or as a continuous stream. The horsepower of the motor and the capacity of the pump decide on the level of water pressure that can be generated.

Equally crucial to the smooth and powerful working of the equipment is the nozzle at the tip of the hose that you can adjust to different angles to vary the water pressure. Remember though, that the least angle setting delivers the highest pressure, and to cover larger surface areas, you can set the angle at around a 40 degree angle.

All power washers normally come with a detergent injector to mix the detergent with the water for quicker dirt removal. The hose, valves, the reel, the plumbing and electrical accessories make up the rest of the components of the power washer.

Power washer repair must be done keeping in mind the preventive maintenance and breakdown repair. To maintain the power washer without hassles, you should carry out a series of preventive maintenance checks, including regularly greasing and oiling the bearings of the movable parts, and come winter, you must make sure to drain out every drop of water in the pump and apply an antifreeze to further ensure that water droplets do not adhere anywhere in the pump.

Power washer repair

Power washer repair is not a complicated affair.


Mostly, if you are using hard water, the valves and nozzle have a tendency to clog on account of the excess calcium deposits. In such cases, you will have to resort to get them cleaned, and if the damage is severe, you will have to change the affected parts.

Motor Breakdown

In the event of a total breakdown of the motor portion, buying a new one may be a more prudent option, but at the same time, ensure that there is no mismatch of the horsepower with the erstwhile pump portion that you have retained.


Since most parts of a power washer are covered by a standard time bound manufacturer’s guarantee, you can pick them up from your nearest hardware store or order on the Internet.

Pump Breakdown

The pump is a a regular cause for complaint in the breakdown history of a power washer. You would do well to learn a few tricks in preventive maintenance, and might well start by replacing its oil every month.

Pressure washers for industrial use are categorized into two types viz the Cat Pump and the general pump. In either case, make sure to switch off the pump when the water is over, as it can lead to burnout because of dry running.

Electric Pressure Washer

Basic Troubleshooting Ideas

  • It would be a good idea to study the manufacturer’s guidelines to appraise yourself of the salient points about the working of your power washer
  • Remember that every model has different configurations set by the manufacturer
  • Check on the type of power washer that you have, as some may have the option of generating hot water, others may come as wheel- mounted, movable units and still others may be fixed models
  • The source of energy may be a gasoline motor or an electric one
  • You may also have to account for varying nozzle types and pressure levels

Some additional problems associated with the power washer maintenance and repairs are enumerated below.

Low Pressure

This is a Key complaint with pressure washers and may originate from several causes such as inlet leakage, worn nozzles, wrong valve seal placement, discharge valve leakage, dirty and restricted inlet, and many more. With a basic knowledge about the equipment, it may not be too difficult for you to identify the part contributing to the problem, and setting it right either by cleaning or by replacing it.

Fluctuating pressure

Fluctuating or rough pressure normally results from a stuck inlet or air in the inlet pipe. A stuck inlet can usually be repaired by removing any blockage in it, mainly by cleaning the strainer or replacing the worn out discharge valve.

Pressure washersNil Water Discharge

This is normally the result of a a blockage in the nozzle or the discharge valve. Cleaning and reinstalling may be the first option but replace it if warranted. Remember that a defective trigger gun can also cause this problem, which you can remedy by going in for a new one.

Low Pressure at the Nozzle

Inadequate water supply can cause low pressure in the nozzle. The other reasons could be a blocked or over length discharge hose, blocked nozzle, congested inlet screen strainer and the like. Clean or replace the parts as necessary.

Noise in Pump

Extra noise in the pump may be due to worn out or broken bearings or connecting rods. Try replacing the broken bearings or the rod, and if the problem persists, it would be better to go in for a new pump.