Gledhill boilermate BMSCP180

[lordyjordy111]

evening

I recently took out a boiler mate 2000 and replaced with a boilermate BMSCP180.

Straight swap all pipe sizes the same. The customer is complaining that there is a loud vibration noise of a night when only the hot water is on.
its a worcester so i think its when pump overun is running.

Ive played about with the by pass. trying it on 2 up to 6. she still has the isssue.

I did not put a balancing valve on hot water so Ive throttled back the pump valve for a few days in case its the speeed of the water (on hot water. its a big house needs to be on 3 for rads) still has the issue

I have visited the property but cant make it make the noise. I dont think its a stay on the coil as i have set by pass on 6 and shut heating and hot water at the same time when hot. no noise????

any ideas. thanks in advance

 

[Sharp Point]

I’ve had a brief look on the instructions, so you say you’ve omitted the charge control valve?

 

[Sharp Point]

You’ve installed everything that came with the kit?

 

[lordyjordy111]

Guys apologies for not coming back to you on this one. Btw I put a modulating pump in and it fixed it. I had a ups2 on there on speed 3. Put a ups3 on there on modulating and no more noise.

Cheers guys