Grundfos Scala 2 dismantle, repair, and reassembly

Grundfos SCALA2 pump disassembly, repair, and reassemble

[@jonathanlarholt4505]

Excellent video, I was told I would need to replace the whole pump!! You're a star

[@bryonpierce8516]

Excellent video thanks for saving me money.

[@johndermody3174]

exactly what I was looking for. Thank you

[@predragrukavina9694]

great video.. can you tell me how old is this pump? is this problem common for this plastic scala grundfoss pumps?

[@fliparies23]

I’ve seen a few of these pumps with this problem, cracking at the prime port due to over tightening, don’t use thread tape or paste.

[@ralphshaw9758]

Just want to add that these pumps are notorious for leaks and not just at the prime plug. I have witnessed the failures many times now. Conveniently warranteed at just 2 years , users are S.O.L. with their failing pumps after that period. A real embarrassment for an otherwise great company.

[@wmauibill]

My pump is an older model Grundfos probably around seven years old. It seems to be leaking from the bottom. It’s losing quite a bit of water.

[@fliparies23]

Take off the shroud to get a better look at where the leak might be coming from. Could be the main shaft seal, but could be a cracked housing.

[@santiagosalcedo5595]

It's has been impossible to buy the kit. Where can I buy it?

[@fliparies23]

www.supplyhouse.com/Grundfos-99016047-Connection-Module?Shopping_ntm&Shopping_NTM_New_users&gad_source=1&gclid=Cj0KCQiAn-2tBhDVARIsAGmStVlnBZ7SuuXiXyPD2RsrkK7e7j5RJ3QNC-Looe7Q0DMZ7Q_Zs0a2pKMaAs8aEALw_wcB

[@ritts162]

did you have to recharge the internal tank? how do you do that?

[@jasonlealiou4481]

Make sure it’s at 18psi check it at the air valve and fill it with an air compressor at the valve

[@ralphshaw9758]

Grundfos recommends the air charge be 70% of desired working pressure. Its a typical Schrader (tire) fill valve.

[@russell0519]

Do you have a video or guide for changing the bearings?

[@russbritt4100]

What the part number for the rebuild kit?

[@fliparies23]

Grundfos repair kit 99016047

[@Jalal_J_A]

I have scala2 not its working even if water discharge water is off??? Working 24 hours!!! How i can repair?

[@fliparies23]

So your saying it continually runs even when the water discharge side is turned off? Sounds like a bad check valve. Take out the water inlet spring and seal and make sure it is clean and free of debris. Also take out the spring and check valve out if the top prime port make sure it is clean and free of debris.

[@fogatron503]

Hi