Pressure Washer Trouble Shooting. Solve Pressure Washer Problems

Troubleshooting Pressure Washer and Power Washer Problems and Pressure Washer Tech Tips from Powerclean

GUIDE TO SOLVE PRESSURE WASHER AND POWER WASHER PROBLEMS
Listed are some common pressure washer problems with causes, solutions and discussion
Find the problem with your pressure washer or power washer then click on the link to find a solution.   Click the discussion links for technical tips and more information.
These service tips are for the cold water pressure washer.
If you have a hot water pressure washer click here for servicing tips for the hot water portion or stand alone hot water module.

Low Pressure Worn or incorrect nozzle
Unloader is by-passing
Insufficient inlet supply
Vibration in pressure hose
Plunger(s) broken, or worn
Belt slippage
Water leakage from bottom of pump or pressure hoses and fittings
Water spraying out in all direction around the spray tip
RPM on motor is too low Oil Leaking From Bottom,
Sides or Back of Pump Crankcase seals or o-rings damaged or worn
Plungers running sideways
Overflowing oil
Worn crankshaft seal
Bad Bearing
Loose or cracked drain plug/sight glass

Noisy/Rough
Operation Restricted inlet or air entering the inlet plumbing
Stuck inlet or discharge valves
Mechanical damage in crankcase
Inlet water is too hot Water in the Oil (Milky) Worn Seals and Packings
Broken or Scored Plungers
High inlet pressure
High humidity / Water splashing on top of pump

Water Leaking From
Under Pump Worn Seals and Packings
Broken or Scored Plungers Intermittent or No
By-Pass (Cycling) No by-pass valve (unloader)
Unloader Leaking
Pump Cycling

Oil Leaking Between
Crankcase and Manifold Worn Oil Seals Pressure Drops After
Period of Use Nozzle is clogged
Worn packings
Dirt in unloader

Frequent or Premature
Failure of Packings Plungers worn
High inlet pressure
Excessive inlet temperature
Unloader is over-adjusted
Abrasive material in pumped fluids
Running pump dry Chemical / Soap Injector
Not Working Wrong nozzle
Adjustment closed
Plugged orifice in body
Plugged filter
Ball and cone spring damaged or missing

Pulsation (Low Pressure) Fouled or dirty inlet or discharge valves
Plunger(s) not moving No Pressure Pump not turning
Inlet valves damaged or broken
No nozzle
Unloader by-passing

High Pressure Spike Unloader over adjusted

Need a parts manual or servicing guide for your pressure washer pump?
Click here for links to major pump manufacturer information

Need service for your machine? Click here for pressure washer service in Vancouver Lower Mainland, Metro Vancouver and GVRD of British Columbia, Canada, including Vancouver, Richmond, Coquitlam, Port Moody, Tri-Cities, Langley, New Westminster, Surrey, Delta, Ladner, White Rock, Burnaby.

Pressure Washer Power Washer specialists with over 20 years in the pressure wash industry!
SOME OF THESE OPERATIONS CAN BE EXTREMELY DANGEROUS. YOU ARE WORKING WITH HIGH PRESSURE EQUIPMENT.
IF YOU DO NOT HAVE SUFFICIENT TRAINING IN THESE PROCEDURES, WE RECOMMEND YOU SEEK ASSISTANCE FROM A QUALIFIED TECHNICIAN
NOTE: Our troubleshooting guide is a work in progress. We try our best to give up-to-date accurate information.
Please check back for updates,
Trouble shooting for hot water pressure washers please click here

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Do you need a HOT WATER Pressure Washer? Click here to see our
Dynablast Hot Water Machines.

Having trouble with your machine? Quite often it's a quick and easy fix.
Click for trouble shooting guide

Hydraclean Hydraulic Powered
Pressure Washers

Pressure washing equipment,
accessory and parts

Low Pressure	Worn or incorrect nozzle Unloader is by-passing Insufficient inlet supply Vibration in pressure hose Plunger(s) broken, or worn Belt slippage Water leakage from bottom of pump or pressure hoses and fittings Water spraying out in all direction around the spray tip RPM on motor is too low	Oil Leaking From Bottom, Sides or Back of Pump	Crankcase seals or o-rings damaged or worn Plungers running sideways Overflowing oil Worn crankshaft seal Bad Bearing Loose or cracked drain plug/sight glass
Noisy/Rough Operation	Restricted inlet or air entering the inlet plumbing Stuck inlet or discharge valves Mechanical damage in crankcase Inlet water is too hot	Water in the Oil (Milky)	Worn Seals and Packings Broken or Scored Plungers High inlet pressure High humidity / Water splashing on top of pump
Water Leaking From Under Pump	Worn Seals and Packings Broken or Scored Plungers	Intermittent or No By-Pass (Cycling)	No by-pass valve (unloader) Unloader Leaking Pump Cycling
Oil Leaking Between Crankcase and Manifold	Worn Oil Seals	Pressure Drops After Period of Use	Nozzle is clogged Worn packings Dirt in unloader
Frequent or Premature Failure of Packings	Plungers worn High inlet pressure Excessive inlet temperature Unloader is over-adjusted Abrasive material in pumped fluids Running pump dry	Chemical / Soap Injector Not Working	Wrong nozzle Adjustment closed Plugged orifice in body Plugged filter Ball and cone spring damaged or missing
Pulsation (Low Pressure)	Fouled or dirty inlet or discharge valves Plunger(s) not moving	No Pressure	Pump not turning Inlet valves damaged or broken No nozzle Unloader by-passing
High Pressure Spike	Unloader over adjusted
Need a parts manual or servicing guide for your pressure washer pump? Click here for links to major pump manufacturer information
Need service for your machine? Click here for pressure washer service in Vancouver Lower Mainland, Metro Vancouver and GVRD of British Columbia, Canada, including Vancouver, Richmond, Coquitlam, Port Moody, Tri-Cities, Langley, New Westminster, Surrey, Delta, Ladner, White Rock, Burnaby.
Pressure Washer Power Washer specialists with over 20 years in the pressure wash industry! SOME OF THESE OPERATIONS CAN BE EXTREMELY DANGEROUS. YOU ARE WORKING WITH HIGH PRESSURE EQUIPMENT. IF YOU DO NOT HAVE SUFFICIENT TRAINING IN THESE PROCEDURES, WE RECOMMEND YOU SEEK ASSISTANCE FROM A QUALIFIED TECHNICIAN NOTE: Our troubleshooting guide is a work in progress. We try our best to give up-to-date accurate information. Please check back for updates, Trouble shooting for hot water pressure washers please click here