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WM combi heat exchanger bad in 3 years
ChrisJ
Member Posts: 16,136
My sister's WM combi unit needs a heat exchanger and I think it's only 3 years old.
I'm assuming this isn't normal, is there anything typical that causes such a failure this fast that I mention to her?
Unit runs on LPG and they have well water. Unfortunately I don't know much more than this at this point.
I'm assuming this isn't normal, is there anything typical that causes such a failure this fast that I mention to her?
Unit runs on LPG and they have well water. Unfortunately I don't know much more than this at this point.
Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment
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I doubt it's leaking, but how do these work with domestic hot water? That's fresh water being fed into it somewhere?hot_rod said:Is it leaking? If so where?
Water quality
Inadequate flow
Combustion not dialed in
The other 3..........I wouldn't be surprised if all 3 are issues.
EDIT : I just realized you meant is the heat exchanger leaking. I'll ask.Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment0 -
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I was thinking in terms of the boiler (HX). Is it the flat plate HX for DHW that is leaking?ChrisJ said:
I doubt it's leaking, but how do these work with domestic hot water? That's fresh water being fed into it somewhere?hot_rod said:Is it leaking? If so where?
Water quality
Inadequate flow
Combustion not dialed in
The other 3..........I wouldn't be surprised if all 3 are issues.
EDIT : I just realized you meant is the heat exchanger leaking. I'll ask.
Most brazed plate type, O ring connections into a composite block, one or two pinch bolt keeping it together.Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream1 -
I'm told the return tube to the heat exchanger is leaking at a factory connection where's it's crimped.
Their contractor is working with WM to try and get it replaced
It sounds like it's caused damage to a board as wellSingle pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment0 -
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Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment0
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