So, from the post Pump Repair: Primary Diagnosis you have determined that you have a partial loss of pressure in your pressure washer. This means the pump is basically working, just losing some pressure somewhere. So we need to find it.
Try this checklist:
1.) Is there a leak in the pump?
Look for drips or sprays.
Check the pump oil, is water getting in there?
If you find one of these, a water seal is most likely damaged. Check the location of the leak and compare to the parts breakdown diagram of your pump.
2.) If you don’t find a leak, the valves are the most likely culprit. Check the parts breakdown for getting access to your valves. Then examine them. Basically, valves have only a few parts: a base, a cage over the top of the base, a spring, and a popit that closes the hole in the base. Examine looking for breaks or debris.
That’s about it for partial pressure loss. There may be some other issues you find, but these are the main culprits that cause the vast majority of pressure issues.
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If your pressure washer pump is not performing as it should, don’t be afraid of repairing it.
First off, if it’s not working you can’t make it worse! Right? So don’t worry about that.
Second, most decent pressure washer pumps are made to be repaired. Parts are available and there is usually easy access to the working parts of the pumps. Now, notice I said ‘decent pressure washer pumps’. The cheaper the pump (or pressure washer) the less likely that parts are available or that the pump can even be repaired. Look for brands on the pump [Annovi Reverberi (AR), CAT Pumps, General Pumps], those are easy to find parts for and repair. There are cheap gas powered pumps that are better off being replaced (Devilbiss comes to mind, or any no name pump). Sames goes for electric pumps, but they are even more sketchy at the cheaper prices.
Third, there are only so many things that can go wrong on one of these pumps. They aren’t that complex. So don’t get overwhelmed. It’s not bad.
So much for the inspirational talk. Let’s get to work on those pumps!
So, your pressure washer pump is broken. What do you do now?
Your first decision is do I repair it or replace it?
1. Saves time: install the pump and you are off
2. No more repairs for a few years: it’s new, so it should last
3. Old pump can be used for parts: put the old pump on a shelf; use it for parts when the new pump has problems
1. Costs more, lots more: a new pump cost way more than parts
2. Still a time commitment: remember, you still have to transfer the hose connections, add oil, and other jobs before you are ready to use the washer again
1. Save money: parts are way cheaper than a new pump
2. Investment in the future: hey you just learned to repair a pump! You’ll know what to do if it happens again
1. Takes time: it will take time to figure out what is wrong
2. No guarantee: you may make the repair, but it may not have been the issue with the pump. Now you have to spend more time figuring it out.
Once you figure out to repair or replace the pump, let us know. We can help.
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.