What To Do When Your Pressure Washer Produces Low Or No Pressure?
In the process of using any product, the incident is inevitable. And with pressure washer products, the most common problem that many customers encounter is the machine does not produce low or no pressure.
There are many causes of this problem, corresponding to them are different solutions. Below, we have summarized the reasons why the pressure washers lose pressure and how to fix it.
What Is A Pressure Washer?
Pressure washers are high-pressure cleaners used to clean the surfaces of walls, floors, vehicles, gardens, factories, warehouses, etc.
Basically, the structure of the pressure washer consists of an engine and some washing machine accessories such as high pressure hose, high pressure guns. The machine works on the principle of creating high pressure to increase the speed of water, causing water to pass through the nozzle with high velocity and output pressure.
Reasons Why Your Pressure Washer Produces Low Or No Pressure And Solutions
Your pressure washer runs for a long time without being cleaned and maintained
A pressure washer without proper maintenance will be likely to encounter conditions such as a weak engine leading to unsatisfactory water pressure, or oil that is not regularly changed causing oil and lubricant deposits in the cylinder, causing the cylinder to not function as smoothly as before.
In addition, the nozzle and filter of the machine when not cleaned regularly will be clogged, this not only causes the pressure of the machine to be not as powerful as it should be but can also lead to serious problems such as damaged engine or overheating.
In addition, users should pay attention that if the device's pump oil seal is worn or torn, it should be replaced immediately.
Bad Quality Products
You seem to have a bargain when you’ve got your pressure washer for just a few pennies and then you realize that it only survives for a few days. Remember that the price comes with the quality. However, it is not always the case.
In the market, there are a lot of cheap pressure washers manufactured by many famous brands such as Greenworks, SunJoe or even Karcher. Make sure that you’ve got yourself a good-quality model to avoid encountering a lot of problems during your jobs.
Slimy, Impure And Dirty Water Source
The water supply for the pressure washer is insufficient or the water quality is not guaranteed to be clean, contains algae, dirt, dust, which will cause nozzles and pipes to be clogged, causing the loss of pressure in a pressure washer.
To overcome, you should regularly check the condition of the water source, if the water source is not guaranteed to be clean, there should be a plan to install additional filters to the end of the water line and regularly clean the tank that contains water.
The Unloader Valve Is Broken
Some pressure washers are equipped with an unloader valve which bypasses the flow of water back to the pump when the spray gun is not being used. Unloader valves also regulate the output pressure of the pump.
When the unloader valve fails, you will not be able to adjust the pressure of the machine to meet the work requirements. You should remove the broken unloader valve and replace it with a manufacturer-approved one.
The High Pressure Hose Is Too Long
Long hoses are able to help users perform the cleaning job at locations far away from the water source without having to move the machine much. However, each type of pressure washer has different capacity, injection pressure and water flow and therefore, it is compatible with different types of water hose, pressure spraying lines with different lengths.
In case that the length of the hose is too great, it will reduce the pressure of the machine. The most appropriate solution is to use a high pressure hose with a length suitable to the specifications of the machine.
Don’t opt for a hose of more than 50 feet for residential use and more than 100 feet for job-sites. And if you want to wash at a distance with an electric pressure washer, they should use an extension socket.
You constantly pull the trigger
The pull of the trigger of the spray gun continuously for a long time will partly affect the life of the valve as well as the pressure of the machine due to the valve having to open and close continuously. Users should limit this to avoid the loss of pressure.
Machine cylinder head is not washed regularly
High-pressure washers often use ceramic-coated piston pumps. The disadvantage of this type of pump head is that if it has not been cleaned, rinsed for a long time, dust inside will cause piston scratch, damage to the pump head and may cause the pump head to vibrate and jerk.
Then you should start cleaning the cylinder head right away.
The Coupler Is Broken
If the coupling or copper part of the pump head is cracked, it will lead to water leakage, which weakens the water pressure, preventing the car washing machine from coming into the water. To fix this, we can replace these parts.
Unclean, wrong size or worn-out nozzles are one of the most common reasons behind the losing of pressure. In those cases, the aperture that produces the unique cleaning ability of a pressure washer is in tune with the rest of the machine, hence the pressure suffers. Simply replace the old nozzle with the new nozzle of the correct size and the problem is solved.
Above is the specific information about the causes of loss of pressure of a pressure washer as well as appropriate remedies. Among them, besides the issue of keeping, cleaning and maintaining those machines, product quality is also an important cause determining the durability and performance of the machine.