No Water Sprays from the Pressure Nozzle
When no water is coming out of your pressure washer the first thing to check is the pressure nozzle itself. Particulate matter in the water, partially un-dissolved chemicals and other small bits can sometimes completely clog the nozzle. Fortunately the solution is to simply clean the nozzle and you should be good to go.
Likewise, the inlet water screen can become clogged by these same contaminants. If your nozzle is working but you still don’t have water then it’s time to check the inlet water screen and clean it if necessary.
If your nozzle and inlet screen are clean and you still don’t have water then listen to see if you can hear a sucking sound. That’s the pump sucking air and it’s most likely caused because the detergent container has run dry or possibly because you have a loose hose clamp or fittings. Solve these problems by re-filling the detergent container and tightening or replacing any loose or leaking hose fittings.
Low Pressure from the Pressure Nozzle
Low water pressure can be just as maddening as no water pressure when you’re trying to wash something. One of the first things to check is the inlet water screen. Even if this screen isn’t completely clogged it could be dirty enough to impede flow. If it looks funky, clean it up and your problem will likely be solved.
Having the wrong size nozzle or using a nozzle that’s worn out can also result in low water pressure. In either case the aperture that creates a pressure washer’s unique cleaning ability is not in balance with the rest of the system and power is compromised. Simply replace the nozzle with the correct size nozzle (in new or good condition) and your problem should be history.
It may sound obvious, but another common problem that results in low water pressure is having a low water supply. If little water is reaching the unit in the first place, little power will come out. Try fixing (increasing) the water supply to solve this problem.
The last easy-to-spot problems that kill water pressure are low detergent levels or loose fittings. You’ll know that one or more of these issues are the culprit if you hear the pump sucking air. Add detergent or tighten suspect fitting to see this problem disappear.
Poor or No Detergent Flow
The most common, simplest reason that detergent is flowing poorly is that the detergent is running low or has run out. Re-fill the detergent container and you’ll be good to go again.
The next most common reason that detergent flow has been compromised is that the detergent screen has become clogged. Clean any gunk out of the screen and flow should return to normal.
Another less obvious cause of low detergent flow is a detergent injector valve that isn’t opening. This happens when the handle or knob is slipping on the shaft.
Another detergent flow problem is excessive inlet valve pressure (more than 80 PSI). That much pressure prevents the valve from operating properly and can be remedied by adjusting the detergent injector valve pressure to the correct value.
While all of these problems are fairly easy to self-diagnose and correct, some are not. If you have questions or need any kind of assistance with your pressure washer then give us a call and we’ll get you fixed up.
Call (816) 483-1580 for personal assistance and any service needs.