Understanding the alarm settings for the SCALA1 pressure booster

A closer look at the three alarm icons on the operating panel and the pump's alarm settings.

Learn about alarm settings for the SCALA1 

The Grundfos SCALA1 is an all-in-one pressure booster. In this module, we will look more closely at the bottom three LED alarm icons on the operating panel. 

These alarms indicate if there is dry running or water shortage, if the maximum runtime has been exceeded, or if there is a leakage in the system.

It is worth mentioning that these alarms do not necessarily mean that there is damage to the pump. It’s simply an indication from the pump, alerting the user that there may be an issue in the system that should be addressed. 

For instance, if the dry running alarm flashes, it doesn’t necessarily mean that the pump can’t deliver water. 

It could mean that it is not getting water. Let’s take a closer look at the three alarms in question.

SCALA1 offers built-in dry-running protection that automatically stops the pump in the event of dry-running.

However, the feature works differently during the first priming phase than it does during the operation phase.

If SCALA1 detects no pressure and flow within five minutes of being connected to a power supply, the alarm will be activated. 

However, during normal operation, this alarm will be activated just 40 seconds after the detection of no pressure and flow.

Next, there’s the maximum runtime function. You can set this during the pump setup in GO Remote, or you can activate it at a later stage. 

If you set the maximum runtime function to 30 minutes, the pump will stop after 30 minutes of continuous operation and the maximum runtime alarm will appear on the operating panel.

Furthermore, this alarm stops the pump from running in the event of a major leak in the system. Leaks can for instance be caused by pipe breakage.  

Finally, there’s the leakage detection.

If there is a tiny leakage in the system, SCALA1 will proceed to start and stop operation periodically. But if this continues for too long, it will result in cycling. 

Thankfully, SCALA1 has an anti-cycling function that you can set in GO Remote. 

Once you’ve enabled this feature, starts and stops in a fixed pattern will bring the pump to a complete stop and the icon will appear on the operating panel. 

If the anti-cycling function is disabled, you will still see the system alarm indication on the operating panel, but the pump will not stop.

You can learn more about the system alarms in GO Remote. Once you’ve located and addressed the source of the problem, you can reset an alarm simply by pressing the “Reset” button on the operating panel, resetting through GO Remote, or by enabling the automatic reset feature in GO Remote.

That was a brief introduction to the three alarms indicated on the operating panel for dry running or water shortage, if the maximum runtime has been exceeded, or if there is a leakage in the system.

Course overview

Modules: 4
Completion time
Completion time: 20 minutes
Difficulty level
Difficulty level: Basic