![]() Please can you either provide us with your contact number or can you call us on 01to discuss this with you. In terms of the replacement, you haven’t given us an opportunity to resolve the situation or allowed us to discuss this directly with yourself instead of using bad language that is not necessary on social media. I would like to discuss this further with you please hence the reason as to why I asked for you to call me. This could be old stock that has been put in by the plumber. This brings into question where this pump was purchased from as we have not manufactured this pump or sold it since 2019. UPDATE: Hi Steve, I do appreciate your frustrations on this matter, however the UPS 2 15-50 you had installed 2-3 years ago is an obsolete pump and has been obsolete for approximately 5 years. I kept saying the pump, the pump and they all insisted that I had the best pump and it was adequate for the 18 radiator system! It is now going in the bin where it belonged from the beginning. The last engineer wanted to rip out the whole system and start again. I have changed 3 way valves, Had power flushes and several engineers in to look at the system. The system never ran properly with your pump. And by the way, the new pump is running in the same place, on the same system, same pipes and same treated water. I researched before purchasing my Grundfos UPS2 15-50/60 to ensure I purchased the most reliable pump. Scroll down the comments it is not an isolated case. Resolved now and I will just avoid Grundfos pumps in future. It is ok Grundfos messaging to say call us ? What's the point, you wont give me my money back or replace the pump or pay compensation for all the hassle and the constant complaints of a cold house. ![]() UPDATE Had A TOWER apump-he fitted and it has solved all the issues I have had over the past 2 to 3 years. Hopefully on Friday my heating will all be working with a new pump of a different brand. I called 2 recommended heating engineers local to me on the south coast and they both stated that Grundfos used to be the go to pumps but recently they have had major reliability issues and both companies said they will no longer fit Grundfos pumps for clients. Water and heating has now become an issue. ![]() I have now decided to replace the pump and the far end rads do not get hot even when fully balanced. I have replaced 3 way valves, cleaned and powerflushed the system all at great cost. My last/ current pump started to lose efficiency after about 8 months. To determine exactly what the alarm indicates, check the trouble shooting page of the I & O (Installation and Operation manual).I have always fitted Grundfos pumps. So, most likely the problem is not with the pump itself but somewhere within the system. The SCALA2 alarms are designed to indicate problems within the installation. But it is important to tighten the priming plug by hand and continue until the plug reaches the bottom of the sealing surface. If necessary, you can use a screwdriver to loosen the priming plug. So please, only use hands to tighten connections. ![]() (As the label indicates.) Even though the connections are robustly constructed and reinforced, using tools can introduce so much force that cracks can occur. The SCALA2 pump is designed so that no tools will fit, so you should only use your bare hands to tighten the connections. Tightening the connections and priming plug Here’s some helpful advice that should clear up any confusion. Some installers working with Grundfos’ SCALA2 boosting pump have had questions about which tools to use, and some have found it difficult to understand the LED alarm indicators. ![]()
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