This is the first in a series of pressure washer pump repair articles. The first few will be general in nature, then I’ll work on getting more specific in future posts.
When looking at repairing a pressure washer pump, the first thing to do is make sure it’s the pump that’s not working correctly. I know, sounds silly. But it can be easy to guess it’s the pump, because the motor is running fine. So it’s gotta be the pump, right? Maybe.
Sometimes where there is a loss of pressure on a pressure washer, it can be the hose/gun/wand assembly causing the issue. So, the easiest thing to do is remove it all from the pump (not while it’s running). Shut down the washer and disconnect the hose from the pressure washer. Crank it up. Is water shooting out of the pump or just trickling out? Shut it down.
If it’s shooting out, there may be an issue with the hose/gun/wand. Look for kinks or blockages throughout that system.
If it’s trickling out, then you have a pump problem. Sometimes it’s between trickling and shooting out. Well, that’s a pump problem as well.
We will look at diagnosing pump problems in future posts in this series.