20 Most Recent Honda Maxus Prosumer MX5223 Pressure Washer Questions & Answers

It is possible the motor is seized or the pump component has jammed. The Honda Motor usually has an oil minder(wont start if low oil). So that being the case you may have a problem with the pump. If you are handy and have internet it is possible to download a parts/repair manual for the type of pump involved. Otherwise take it to a repair shop. Sometimes these pressure washers are more costly to fix as compared to a new one..

Honda Maxus... | Answered on Nov 25, 2014

The load is too big for the circuit you are trying to run it on.

Honda Maxus... | Answered on Mar 06, 2014

Not enough pressure to spin drive way cleaner. Jets in cleaner have been cleaned out but no dirt found.

Honda Maxus... | Answered on Mar 16, 2013

Check air filter, carburetor may be dirty.

Honda Maxus... | Answered on Oct 25, 2012

Your only limitation is some loss of pressure at the tip as you add sections of hose (most likely not too noticeable with 100'). Less expensive to add water supply hose if possible making sure that the unit gets enough water to keep the hose from collapsing. Good luck with your projects.

Honda Maxus... | Answered on Jun 10, 2011

Check out the last page of this manual: http://www.karcherresidential.com/support/downloads/pdfs/handbooks/pumps/Pump_629.pdf
The hose going to the soap-intake has probably fell off and the ball and spring that should be inside the intake has fallen out.. Find them or buy new. I have the exact same problem.. :-/

Honda Maxus... | Answered on Apr 11, 2011

Hello current... be sure to use the black low pressure nozzle to inject the chemical. The chemical injector will only work and open up when this tip is used and it will allow the pressure to drop to 250 PSI to draw the chemical up.

This is the formula to calculate the injection rate

(GPM x 128)/ounces drawn in one minute

For example:

If a 2 GPM machine draws 8 ounces of chemical in one minute the formula would be
(2 X 128)/8 = 32:1


Thanks for choosing Fixya!

Honda Maxus... | Answered on Jan 26, 2011

You have to make sure that you are using the correct nozzle, see this attached link for the nozzle that you should use in order to get the machine to **** chemical or detergent.

Honda Maxus... | Answered on Nov 09, 2010

you have downstream injection and this means only with low pressure will **** chemical you need a soap nozzle or check your injector make sure is in the right direccion

Honda Maxus... | Answered on Aug 25, 2010

any sae10w-30 will do, 5.3litre of if you prefer 5.6us quarts.

manual is available on this site:

if you find my advice helpful, please do not hesitate to comment and vote4 for me, thanx!

Honda Maxus... | Answered on Aug 02, 2010

Typical causes: hose bib not fully on, kink in supply hose and, #1 - clogged nozzle, particularly after several months of not being used.

Honda Maxus... | Answered on Apr 27, 2010

Hello. Get a bottle of carburator cleaner which you add to the fuel. follow the directions on the bottle. This should solve your problem.

Please rate my answer as very helpful. thanks.

Honda Maxus... | Answered on Apr 25, 2010

Sounds like it could be just a main jet bloked in your lance. Please remove the jet and see if you have a good water flow when pressing the trigger.

Honda Maxus... | Answered on Feb 08, 2010

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