Guide: Understanding SCALA2 Controls, Features and Utility

[@The_Bald_Fella]

Hello.. My Scala2 pump makes a loud crackle every time it starts. I open a tap or the shower, and the noise is there, waking babies or scaring guests. The pressure is set to the minimum, I tried up to level 4, but the crackle is the same for all levels.

[@arul2709]

hi, my scala 2 has a leaking from the bottom of the pump, where there are 2 holes covered with a mesh kinda metal piece. tried sourcing for local suppliers and the only thing they advise me is to replace the whole pump. is there a way for me to repair it myself? maybe change some seals or O rings?

[@tjm52071]

were you able to repair this ? Mine is leaking too now.

[@rickmiller1649]

@@tjm52071 did you guys find a solution? My first one leaked after a year so the plumber replaced it under warranty and told me if it happens again I am on my own. The second one is leaking after a year. The rebuild seal kit is $250. After reading your note, I'm wondering what you did.

[@jeadoretu]

@@tjm52071also interested

[@mhmdpeace]

After fixing it, the technician told me not to change the pressure by myself. that was strange to hear because the pump is obviously equipped to be able to set the correct pressure on demand and not call the provider and wait just to press a button!. He told me that different settings have different "regulators" that should be fixed and if I change it without having the right regulator this might damage the pump. I'm just asking is this all true?

[@elwasna]

Hi , I have redundant Scala2 pump in my house. one of them is showing indicator 5 on “ System overpressure” .. I followed the manual suggestion and lowered the pressure setting but still not working When turn of the faulty pump and turn on the other, The works fine. What are other possibilities for the issue?

[@samstuika211]

Hi there I have the same one the red light came on number 3 is that bad ?

[@sonyawalden5010]

On my second one. The first leaked. Now we have a code 2 light and two red light indicating the pump has stopped, any suggestions?

[@MrAelara12]

Hello Is there any max water temperature for this product? Thanks

[@thelenwilliams]

Maybe do a video on checking pre-pressure PSI setting for internal air tank/bladder...

[@raymondvanwhy2141]

I also have a scala 2 pump. Works well. Here in the Southwest I have a evaporative cooler with a float valve to adjust water through he cooler pads. The scala 2 , because of the trickle float valve thinks there is a water leak in the system....!!!! Is there any way to disable or clear the unit so it doesn’t always think there is a leak?... thanks for the reply’s. RVW

[@3sons66]

Do you need a 2 gal. pressure tank with this unit? I see many install videos and none talk about a pressure tank needed like the "Little Giant 400" pressure boosting pump. Water hammering issues? Thanks.

[@devenderyadav2925]

Does the pump keeps running at constant pressure even if there is no requirement of water

[@davidbentley7102]

the leak light intermittently illuminates, no leak in the house or around the pump is present. The reset eliminates the warning light, but then it returns. How is this rectified?

[@Dakota_da_bomb]

Yeah I just recently installed one of the scala2’s where we removed an old pump and the grunfos pump just constantly runs any ideas? Could the bladder tank need to be aired up?

[@johndermody3174]

Do you know where I can get a replacement pc board?

[@macelenhart1724]

will this pump work with a circulation pump that keeps the hot water circulating through your home? Or will it stop working because it thinks you have a leak somewhere in the system?

[@bgfunbear]

These last about 2 years max now. Not sure what happened to Grundfos quality on these pumps. I have a new one, that when it hits cut off pressure, it tried to shut down, but then starts up again, and goes through this cycle continously, any help would be appreciated.

[@AloeVera22]

My unit does not goes off. Even though no foist is opened. I still don’t know why it is still running. Is there any thing I should know about. Or something causing it.

[@curtmattioli3677]

Mine does the same .please advise

[@LaurieMuir]

what is the orange symbol on No5

[@ophmm]

Hey, We mainly use this pump for rainwater in the toilet. When flushing, we hear the pump working very erratically as if something is stuck. After about five stutters, it always runs perfectly. Do you have any idea what that could be? Everything is perfectly clean in the rainwater tank and at the inlet.

[@alancampbell3595]

Hi, My Scala2 pump runs on for about 1 minute after I use even a small bit of water from the tap. Is this normal?

[@AbcAbc-fx1gd]

This pump can be use fill up the tank and for water pressure booster at the same time??

[@laurenpowell5817]

Hi My pump isn't pumping. Power light on but number 1 is a red lightning logo

[@zulhaimiwahidin5196]

Hi my pump is giving hunting pressure....i.e the rpm is not stable....its pulsating....any idea why it's behaving like this....its my second scala 2 though in 3 years...the first one leaks after one and a half year.....lucky me it was under warranty

[@azzammeeralam]

Mine keeps running and stoping every couple minutes while not using water. Any idea why besides leakage? Do I need to adjust something?

[@marksheridanmarzo481]

Can the pump support 5 bathrooms? And a laundry area? Thanks

[@PEXUniverse]

Hello Mark, this pump can support up to 8 taps and has a maximum system pressure of 145 psi/10 bar. If you would like to know more detailed information be sure to check the video at 2:00.

[@dominiccabanes3979]

why there is red light S Indicator on my scala water booster

[@sophieholland9755]

Got a brand new pump and installed it after 2 showers water is leaking from the bottom any ideas or how to fix it. It’s brand new.

[@PEXUniverse]

If a pump is leaking, that usually means that there is an issue with the seals.

[@charlesmiller5078]

I was told from the guy on the phone, any pump with a year 2018 or 2019, " could ", have a casting flaw, its minor but it will cause the seals to not set perfect, and after 6 or 8 months they start leaking, 6 months later...leaking again. They just sent me a brand new pump, build year 2020. Its a real shame cause it was working flawlessly, perfect pressure.

[@ricaridosinconiegue1686]

Hi, our newly installed escala2 keeps on running. The rese water pressure indicator is already on. What does it mean and how are we gonna do to fix it. Thanks

[@jimmienew1354]

Don't know if you fixed it yet but low pressure in the pressure tank will do this. The air pressure in the tank is supposed to be filled to 70% of the working pressure you choose. I had that problem and it fixed it.

[@curtmattioli3677]

My scala 2 run all the time .what can I do

[@nrmjansen]

Mine is about 2,5 years old. The Grundfoss eye is now blinking with a red light, without any other indication of what the error might be. Anyone has any experience with this?

[@rodrodreyes]

Same issue now. Blinking red light, and pump has stopped. Prior to this happening, pump made a more louder sound.

[@Maart3nSl3g3rs]

​@@rodrodreyes I have the same issue. I can get it working again by turning the shaft (first unscrew the cap) with a screwdriver left and right a bit (do this with the power off). But this only helps for a very short time. Now browsing the internet fora solution).

[@ntme9]

I have a grunfos MQ3-45 that's been going strong for 8 years now. Researching this scala2 vs the DAB mini box 3, what's your opinion on these 2 pumps?

[@newtech2762]

Dab esybox mini 3 is the best water technology Fully Automatic, save water, save energy ...❤

[@rickyona1040]

How if the motor running continously even no water flows?

[@gabel408]

I’m on my third pump in under three years. First pump started running really loud. Second started leaking from the bottom. Third has only been installed for one week.

[@IsmailQadry]

Are you getting them warrantied by Grundfos or are you ending up having to purchase new ones? I'm having issues with mine and am trying to figure out if I should directly to Grundfos or to Power Equipment Direct where I purchased it.

[@gabel408]

Ismail Qadry I had to try my hardest to find a service center “ sales rep “ and they sent me a new one to replace the broken

[@davidbeas]

@@IsmailQadry The ones made on february 2019 or before they had an engineering mistake that make them leak. After that, they work awesome, I have one.

[@Milkshake61]

Two failed units, 1st leaked the second had a blown bearing, waiting on third. All under warranty

[@gabel408]

Installed my replacement two months ago from the last broken scala2 and guess what…… leaking from the bottom. I really wanted to believe it was going to work without issues. PC is 1941 so that’s past the recall models

[@basheerbr14]

Pump shows yellow lock symbol, how remove it?

[@brendanolan7168]

We have this pump and it's very noisy. So much so that out neighbours can hear it next door. We now have a red indication light showing. The third one, does anyone know what this means?

[@gre2g]

what does it mean when the green pressure level light is blinking ? and why is the pump pulsing while pumping water ( ok when setting pressure)

[@PEXUniverse]

you might have to troubleshoot your pump from the looks of it.

[@coryh7209]

If you happen to know why I would have rust and a tiny bit of rusty water coming out of one of the two sides of the insect screen on the bottom of the unit please let me know

[@PEXUniverse]

We recommend contacting their support line: lp.us.grundfos.com/ServiceRequest.html

[@rickcasentini]

Can water still run through pump on a power failure

[@davidbeas]

Yes I have one, as long as there is enough gravity fed water pressure, it will work.

[@richoverlin9290]

So, i had an original scala 2 pressure pump installed about 1 years ago. It quit working after 2 months and my plumber would not warranty it. I ordered a new one and just installed it. The red electrical light comes on and will not reset. Help

[@Maart3nSl3g3rs]

I have the same issue. I can get it working again by turning the shaft (first unscrew the cap) with a screwdriver left and right a bit (do this with the power off). But this only helps for a very short time. Now browsing the internet fora solution).

[@rogerroger6864]

how to turn off?

[@adoralcantara3807]

My 2 yr old scala2 cycles on and off every 15 sec +- . Pressure is good but uses a lot of electricity. Does anybody have the same issue? How did you fix it? Please.

[@jimmienew1354]

I had that issue and was the pressure tank. It needs to have 75% of your working pressure in it. We had to change the needle valve (it's called something else starts with an S) and after doing so were able to get it functioning very well. It's the air valve at the top and you need a pressure gauge. It was hard to gauge so we just put air in it and it worked fine. Before that it ran almost all the time and was absolute power burn.

[@tonnysie5644]

reply to MidLin Ksys: i had the same problem pump keep on running. I solved it by setting the pressure setting one bar down.

[@charlesmiller5078]

Im having to install a 2nd pump, In the instructions it fails to mention how much air to put into the small air bladder tank, kinda crucial not to even mention. Is it like my well bladder tank, where I set the pressure around 4 psi less then the pump cut off. Terrible instructions to say the least.

[@rioannen]

I wanted to hear about the error codes. I got 2 already and I don't know what are they. Was nr 4 and 5

[@PEXUniverse]

Hello Remus, if you open the video at 2:50, you will see a chart describing all of the errors, hope that helps

[@petemitchell8161]

The manual for these codes is not have enough detail at all. Example: my SCALA2 is flashing two red lights twice, followed by a green, the two red again. It’s obviously a code, but the manual does not get into the flashing. It only states that the red light are an “alarm”... alarm for what? I can’t find a fault code list anywhere on the internet.

[@mohammadgheith8388]

Oliver Murphy same here too

[@lukesantos9142]

@@petemitchell8161 im having the same problem. Any solution?

[@lukesantos9142]

@@mohammadgheith8388 any solution?

[@ethelandwally4635]

Sometimes pump will run or cycle after tap is turned off. It happens a couple times a day. So pump runs while there is demand as soon as the tap is turned off the pump will stop then 5 or 19 seconds later the pump will turn back on for 5sec or so. No alarms

[@workhardforit]

You probably have a leak because it keeps maintaining line pressure.

[@Guns_N_Gears]

Check for slow leaks, like a toilet that you may not hear leaking

[@洪柜峰]

Excuse me. I just bought 2 of them. What if hot water enters SCALA2 to be pumped ? say 100 degree Celsius.

[@jazz1ba]

Buy a new one.

[@sufyan14333]

My pump is stop showing red indicater

[@travisberg4487]

My grundfos eye has two blinking red lights.... reset doesn't work nor does the factory reset... anyone else dealing with this or has dealt with it?

[@Maart3nSl3g3rs]

I have the same issue. I can get it working again by turning the shaft (first unscrew the cap) with a screwdriver left and right a bit (do this with the power off). But this only helps for a very short time. Now browsing the internet fora solution).

[@marysampson9851]

Between the up and down pressure there is a lock out light on. how do you turn it off to change pressure ?

[@mdsaif9537]

7 indicators function Ni 3 is blink and paup is not working 😮

[@jeremyburke1880]

So in the buttons area you show that the red lights mean the pump has stopped. No kidding. I know that. What is the cause is what I want to know so I can get it fixed. This pump is 3 years old but only ran for about 6 months. I've just been to busy to mess with it. I'm retired now and want to get it going.

[@samme69]

Same here. The eye indicates that there is something wrong, but it's a other code than in the manual...

[@marielcompanero8891]

Same problem, i installed last week but i see eye indication red and blinking, i cant find in manual what is solutions...

[@lplp6961]

it promises more than it does. This pump is not able to provide more than 2.5 bar from a well. And sometimes gives up, looses pressure, and then starts again by itself to full pressure again. Can only be used as a booster, not as a standalone well pump.

[@jimmienew1354]

I have the same thing, though from a cistern right under the pump. When I re-read the pamphlet I noticed in "fine print", "if pumping from well or tank it can only do a certain pressure and if positioned for more pressure it will back it down to what it can do. Mine works well after some tweaking but has now developed a leak and trying to find out how to get the repair kit. I did buy it via Pex Universe and they are telling me they can't get parts. That is not making me happy.

[@jazz1ba]

On the box it says ‘booster’. It’s your problem if you don’t use it as intended.

[@flybywire9953]

You are lucky if you have no bottom leaks after 1 year. Expensive pump, but it's crap 👎

[@resacarebel1868]

It's not a good product at all. Leak after short use

[@Mr880881]

Waste of time watching this

[@dbfisher]

My pump has worked fine (with a few exceptions - hose issues) for three years and five months. Now I am not getting it to power up, i.e. no lights at all. I have checked the electrical connections and they work. Any ideas? Have email in to Grundfos and hopefully will hear something back on Monday when I will also call. I am seeing a lot of complaints that these pumps do not last that long. If I have a dead pump, does anyone have any recommendations for a pump with the same functionality. I have had two Grundfos MQ 3-45 pumps over the last 30 years - my understanding is that they are discontinued. I am using this to pump water from a catchment tank to our home - about a 10-15 foot elevation.