Help & Information

Troubleshooting Guide

Common pressure washer problems, their causes, and how to fix them.

Cause

Insufficient inlet water supply

Solution

Unkink garden hose, ensure full water pressure coming from tap, use large enough diameter garden hose (see manual)

Cause

Blocked inlet water filter

Solution

Remove garden hose connection and remove debris

Cause

None or incorrect nozzle

Solution

Ensure correct nozzle being used

Cause

Damaged unloader valve

Solution

Adjust unloader screw, check for damaged seals/springs

Cause

Damaged pump inlet valves/manifold

Solution

Disassembnle pump and replace/clean components of inlet manifold

Cause

Damaged pump inlet valves/manifold

Solution

Disassembnle pump and replace/clean components of inlet manifold

Cause

Faulty pump

Solution

Replace pump

Cause

Pump sucking air

Solution

Turn off machine (but not water supply) and release pressure by squeezing trigger

Cause

Obstructed nozzle, water inlet or gun/spray wand

Solution

Use needle to clear nozzle, fresh water to flush water inlet and vinegar to clear any deposits in gun/wand

Cause

Poorly calibrated unloader vale

Solution

Adjust unloader to proper pressure as per manual

Cause

Nozzle blocked

Solution

Clear nozzle with needle

Cause

Issues with unloader valve

Solution

Remove unloader to clean/repair

Cause

Using wrong nozzle

Solution

Switch to higher pressure spray nozzle

Cause

Seals broken, cracked or worn

Solution

Return and replace under warranty

Cause

Loose bolts on pump assembly

Solution

Tighten bolts to ensure pump causing properly sealed together

Cause

Thermal valve activated

Solution

Wait 5 minutes before using (it will de-activate once cool enough)

Cause

Broken or improper connection

Solution

Connect properly

Cause

Broken rubber washer

Solution

Replace

Cause

Broken o-ring inside hose connection

Solution

Replace o-ring or return hose for new

Cause

Not properly connected

Solution

Connect properly

Cause

No gas

Solution

Fill with gas

Cause

Choke is in wrong position

Solution

Move to correct position as per manual

Cause

Pressure build up

Solution

Squeeze trigger gun to release pressure in system

Cause

Spark plug wire not connected

Solution

Connect wire

Cause

Faulty spark plug

Solution

Replace with new

Cause

Low oil level

Solution

Check and fill oil

Cause

Dirty air filter

Solution

Clean or replace it

Cause

Dirty air filter

Solution

Clean or replace it

Cause

Engine not running at correct RPM

Solution

Adjust RPM to engine specs with pump detached

Cause

Worn seals

Solution

Replace seals (covered by warranty)

Cause

Worn or broken pistons allowing water through

Solution

Repair engine

Cause

Worn seals

Solution

Replace seals

Cause

Electric outlet is faulty

Solution

Check main fuse, check plug

Cause

Not plugged in

Solution

Plug in

Cause

Faulty motor

Solution

Return to supplier

Cause

Low voltage

Solution

Check voltage is within motor specified range

Cause

Using wrong nozzle

Solution

Inserrt black soaping nozzle on wand

Cause

Soap tube inlet filter clogged (hose end that sits in soap bottle)

Solution

Flush with fresh water

Cause

Soap inlet valve is clogged or blocked (pump side of tube)

Solution

Remove hose and use small Allen key to push through hole to remove debris/unstick the ball valve

Cause

Detergent mixture is too thick

Solution

Add more water to dilute

Cause

Worn or broken unloader valve seals, springs or other components

Solution

Remove and replace

Cause

Unloader valve not properly installed

Solution

Remove and install correctly, properly seating the valve at the bottom of the pump housing

Cause

Water leaking from unloader valve

Solution

Replace worn or broken seals and re-install unloader valve to specification

Cause

Dirt in unloader

Solution

Remove and clean

Cause

Water intake is blocked

Solution

Check and clean or replace

Cause

Not enough oil in engine

Solution

Check and add oil

Cause

Not enough oil in pump

Solution

Disassemble and check (if possible) and add oil, otherwise return under warranty

Cause

Loose bolts/fitting

Solution

Check and tighten

Cause

Damaged parts like seals or pistons

Solution

If comfortable disassemble to check, clean and replace, otherwise return under warranty

Help & Information

Troubleshooting Guide

Common pressure washer problems, their causes, and how to fix them.

Cause

Insufficient inlet water supply

Solution

Unkink garden hose, ensure full water pressure coming from tap, use large enough diameter garden hose (see manual)

Cause

Blocked inlet water filter

Solution

Remove garden hose connection and remove debris

Cause

None or incorrect nozzle

Solution

Ensure correct nozzle being used

Cause

Damaged unloader valve

Solution

Adjust unloader screw, check for damaged seals/springs

Cause

Damaged pump inlet valves/manifold

Solution

Disassembnle pump and replace/clean components of inlet manifold

Cause

Damaged pump inlet valves/manifold

Solution

Disassembnle pump and replace/clean components of inlet manifold

Cause

Faulty pump

Solution

Replace pump

Cause

Pump sucking air

Solution

Turn off machine (but not water supply) and release pressure by squeezing trigger

Cause

Obstructed nozzle, water inlet or gun/spray wand

Solution

Use needle to clear nozzle, fresh water to flush water inlet and vinegar to clear any deposits in gun/wand

Cause

Poorly calibrated unloader vale

Solution

Adjust unloader to proper pressure as per manual

Cause

Nozzle blocked

Solution

Clear nozzle with needle

Cause

Issues with unloader valve

Solution

Remove unloader to clean/repair

Cause

Using wrong nozzle

Solution

Switch to higher pressure spray nozzle

Cause

Seals broken, cracked or worn

Solution

Return and replace under warranty

Cause

Loose bolts on pump assembly

Solution

Tighten bolts to ensure pump causing properly sealed together

Cause

Thermal valve activated

Solution

Wait 5 minutes before using (it will de-activate once cool enough)

Cause

Broken or improper connection

Solution

Connect properly

Cause

Broken rubber washer

Solution

Replace

Cause

Broken o-ring inside hose connection

Solution

Replace o-ring or return hose for new

Cause

Not properly connected

Solution

Connect properly

Cause

No gas

Solution

Fill with gas

Cause

Choke is in wrong position

Solution

Move to correct position as per manual

Cause

Pressure build up

Solution

Squeeze trigger gun to release pressure in system

Cause

Spark plug wire not connected

Solution

Connect wire

Cause

Faulty spark plug

Solution

Replace with new

Cause

Low oil level

Solution

Check and fill oil

Cause

Dirty air filter

Solution

Clean or replace it

Cause

Dirty air filter

Solution

Clean or replace it

Cause

Engine not running at correct RPM

Solution

Adjust RPM to engine specs with pump detached

Cause

Worn seals

Solution

Replace seals (covered by warranty)

Cause

Worn or broken pistons allowing water through

Solution

Repair engine

Cause

Worn seals

Solution

Replace seals

Cause

Electric outlet is faulty

Solution

Check main fuse, check plug

Cause

Not plugged in

Solution

Plug in

Cause

Faulty motor

Solution

Return to supplier

Cause

Low voltage

Solution

Check voltage is within motor specified range

Cause

Using wrong nozzle

Solution

Inserrt black soaping nozzle on wand

Cause

Soap tube inlet filter clogged (hose end that sits in soap bottle)

Solution

Flush with fresh water

Cause

Soap inlet valve is clogged or blocked (pump side of tube)

Solution

Remove hose and use small Allen key to push through hole to remove debris/unstick the ball valve

Cause

Detergent mixture is too thick

Solution

Add more water to dilute

Cause

Worn or broken unloader valve seals, springs or other components

Solution

Remove and replace

Cause

Unloader valve not properly installed

Solution

Remove and install correctly, properly seating the valve at the bottom of the pump housing

Cause

Water leaking from unloader valve

Solution

Replace worn or broken seals and re-install unloader valve to specification

Cause

Dirt in unloader

Solution

Remove and clean

Cause

Water intake is blocked

Solution

Check and clean or replace

Cause

Not enough oil in engine

Solution

Check and add oil

Cause

Not enough oil in pump

Solution

Disassemble and check (if possible) and add oil, otherwise return under warranty

Cause

Loose bolts/fitting

Solution

Check and tighten

Cause

Damaged parts like seals or pistons

Solution

If comfortable disassemble to check, clean and replace, otherwise return under warranty