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Forgot the pics.

Hi Guys, I appreciate all the help you’ve graciously given. I pulled my Pentair LA MS05 hoping to replace a bad bearing. (It was running very loud) Upon disassembly, which was a little challenging with no YouTube’s to go on, I found significant the shaft turn to be very tight. Then the shaft...

Thanks!

I suppose I can pull the bearings and check the sizes?

Pentair gave me the seal part number , but said they don’t make the motor (even though it carrier their decal) so couldn’t give me the bearing size or part number. Advice?

Hi Guys, I have a pentair booster running a Polaris in a 28 ft fiberglass pool. This was a new build <2 years ago..... Suddenly, the booster motor became very loud. It still drives the Polaris easily. I’m fairly handy and think I can replace the bearings if that is what it ends up being...

Quick Follow Up: As mentioned above, after changing thermister and letting the pool pump power up and cycle a few times, the heater started working properly. However, now, it will switch modes from pool to spa on its own. Also, if I turn it off, (heater off button), the next time the pump cuts...

Second update: James, I fired it up yest and it has run correctly last nite and today..... no further E01 codes. Any chance the board took some time to reset and clear the code? I replaced an o2 sensor on my truck and it took a few days before the check engine life went off? I will hold on...

Update: I turned on the heater this afternoon.... Startup seemed normal. Blower came on and igniter fires up.... readout read 62 or so which is likely accurate.... then I set temp to 80 which seemed to hold ...... Got home a few hours later.... blower and burner still running.... but readout...

Yes, I reinstalled the old one and it did the same thing.... I have triple checked the connections. Right before the E01 code pops up I do hear a click. Thanks for the help!

Hi All, Thank you in advance for your help. In the fall we moved into a house with a 2016 installed Sta Rite max E therm 400 gas heater. It worked fine initially, but the would shut down intermittently and the service heater lite would come on. Turing power of and back on would usually get it...