Why Is Your Pressure Washer Losing Pressure?
Pressure washers are great for doing outdoor cleaning projects in no time. This handy tool can get rid of paint stains, dirt, debris, and grime for the side of your home, concrete, car and other outdoor surfaces. However, in order to achieve total cleanliness, it is vital that your pressure washer is in the correct working condition.
Thus, if you are thinking of purchasing a pressure washer, it is vital to know some of the common problems that the unit is likely to encounter. This includes the reasons why your pressure washer may lose pressure.
Below are some likely causes of your washer losing pressure.
Blocked Nozzle
Worn out nozzles are a common problem for lost water pressure in power machines. Such nozzles will cause gradual loss in the water pressure since the holes in the tips are widening with time. This then causes more water to flow through the nozzles resulting in low or no pressure.
Additionally, the nozzles may be blocked by debris or dirt. When this happens, there will be an unusual spray pattern and a decreased flow. Use a needle to clear the blocked nozzle tips from debris. In case of worn out nozzles, be sure to replace them with new ones for proper functioning.
Incorrect Hose
Some high pressure hose may be the reason of lost pressure in your pressure washer. This is especially true if you have installed the wrong size of hose that is wider than your unit. Therefore, when replacing the hose of your power washer, it is wise to check its diameter and find a hose that has the exact fit. If not, your washer may experience loss of pressure when operating.
Also, if the water pressure is low, you may first want to check if the hose is squeezed or kinked. Also, check for any blockages in your hose. Debris can get into your hose during storage or when it is dragged on the ground. Run water through your hose and ensure that it runs clear.
Inadequate Water Supply
One way to check the water supply is by opening the water supply valve in order to ensure that the pump is getting enough flow. You may also want to test the water supply using a pressure or flow rate gauge to make certain that it is adequate. If the water supply is below 20 PSI and 4 GPM, then this may be the cause for lost pressure in the washer. Be sure to look for an alternative solution that will offer adequate water pressure and flow rate for your power machine.
Low engine and pump oil levels
If you are having problems with your power washer’s pressure, check the engine and pump oil levels. It is important to have the correct engine oil levels since the engine is responsible for running the pump. The pump can be easily worn out when the oil is not regularly changed or the oil level is insufficient. It is a good habit to always check the pump’s oil levels before turning it on.
Another reason that may cause the pump to seize is when you use the wrong oil or lubricant. The best solution is to add the correct oil to the engine and the pressure washer pump. Another way to avoid oil leaks is to check seals twice a year and replace the worn ones. In addition, servicing it locally will help evade any problems with the engine or pump.
If you have an electric pressure washer, see to it that the electric outlet is functioning properly. According to gas pressure washer reviews, the engine will not start if there no gas or if there is a faulty spark plug.
Most homeowners are familiar with doing small home repairs which makes repairing things like your pressure washer, a lot easier.
Blocked or Damaged Water Inlet
If the water inlet is blocked, cogged, or damaged, then you are likely to experience low pressure with your unit. Check your water inlet and the inlet filter to ensure that it is clear from debris. The unit is likely to collect debris particularly when washing wooden materials. Regular and thorough cleaning of the inlet filter will help get rid of debris that may be causing the blockage.
Unloader Valve
The unloader valve diverts the water flow in the pump to the bypass when water is not being sprayed from the nozzle. Adjustments can be made to the unloader valve in order to increase or decrease the water pressure from the nozzle. Located on the exit side of the pump, the unloader helps to take back the pressurized water through the pump when you are not pressure washing.
Therefore, if there is a gradual loss of water in your unit, you need to make adjustments to your unloader valve. Make sure that you make the adjustments in small increments to prevent pressure buildup. It is also ideal to attach a pressure gauge to the unloader valve so you can monitor the changes in pressure.
Conclusion
As seen above, there are many troubleshooting problems that can manifest in your pressure washer. Blocked nozzles, unloader valve, damaged water inlet, and inadequate water are some common reasons for washers to lose pressure. After checking out these issues, you might be able to get your pressure levels to normal.