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March 809 Pump Repair

The March 809 HS Pump has become an integral part of my brew setup.  So, I was extremely dismayed when it started having problems.  The sound would change to a higher pitch and the pump would cease to move any liquid.  After turning it off and on again, it would usually work.  Last Friday I was brewing by myself, which is rare, and the pump stopped pumping and refused to start again.  I had to convert to a gravity setup, which was not awesome.  I can tell you that a boil kettle full of 10 gallons of hot wort is not easy to move by yourself.  Good thing I have been body rocking.  I had put this off long enough, so I decided to finally fix the pump.  The fix turned out to be cheap and easy, just like me.

First off, you might be thinking, "I don't know if I want to tear apart my $150 piece of brewing equipment just because some guy on the internet told me too."  Don't worry.  This is and we are totes legit.


In the photo below, you can see that the  March pump is a simple design.  The little asterisk looking thing is the impeller.  It spins on the metal shaft and is driven by the magnet cup attached to the electric motor.  When I took mine apart I was surprised to see that nothing looked broken or gunked up.  It took me a while to find the problem.  The impeller and the head are made out of some kind of plastic or polymer.  My unit seemed to be missing part number 5.  There was no washer, and when I spun the impeller by hand on the shaft, it would bind pretty quickly.


I found a stainless steel washer and put it on the shaft.  Right away I could tell the impeller was spinning much more freely.  I reassembled the pump and it has been working like a dream. 

Tags: , March 809, Pump


1 comments on this page. Add your own comment below.

Dec 12, 2014 6:07pm [ 1 ]

I'm having the same problem and have tried substituting with a stainless steel washer. What thickness washer are you using. I tried this solution but no luck so far. Thanks.

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