ᐅ Are the controllers for underfloor heating control valves "installed incorrectly"?

In my perception, it is disputed whether the system is functionally limited or if it is just an aesthetic issue. Otherwise, the solution would be to empty and flush the system.
Do you have a sludge separator in the system? Flush it!

There is still a warranty, and you could have the system builder at least perform the flushing and refilling with deionized water.

If necessary, you could also have a sludge separator installed (if not already present) and replace components made of plain steel with ones made of precious metals or stainless steel.

Do you have any tips on how to approach this with the heating engineer? Of course, it is still debatable whether there will be any functional limitations or not, but the heating engineer will almost certainly try to downplay everything.

quattro123 schrieb:

Do you have any tips on how to best approach this with the heating engineer?
Of course, it’s still debatable whether there is a functional limitation or not, but the heating engineer will most likely downplay everything.

For a formal complaint, the first step would be a factual description of your observation. For example: discolored water, control valve no longer readable. Something along those lines. No interpretation or suggestions for solutions. Then wait and see what happens.

If the response is "that is normal," ask why it is considered normal.
Mention that you will have the technical explanation reviewed by a third party if it seems implausible.

Thank you, I'll give it a try.