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Blocked Plate Heat Exchanger (Sludge) | No Hot Water | How To Unblock | Viessmann Boiler
Blocked Plate Heat Exchanger Magnetite Sludge - Viessmann Vitodens 100
60 second breakdown no hot water on a Worcester Bosch 30i combi boiler blocked plate heat exchanger
How to clean a plate heat exchanger!
Boiler repairs (blocked plate heat exchange) part 1
Worcester blocked plate diagnosis, no tools needed!
HOW TO CLEAN - Plate Heat Exchanger - What’s Inside
Common causes of reduced hot water at the tap with a combi boiler
Blocked plate heat exchanger on combi boiler #naturalgas #gassafe
Engineer Explains.. Boiler heat-exchangers blocked with sludge and scale. How to fix it correctly!
COMBI BOILER heat exchanger
Ideal Logic Plate heat exchanger no hot water combi
