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Plumbing

Overflow pipe runs when boiler on for hot water in the morning

Anonymous user 23/02/2024 - 3.13 PM

I have old style boiler and big storage tub upstairs 16 year old. I have set timer for hot water in morning and every time boiler run tub's Overflow pipe start. It happen every day. I tried to turn boiler on and wait for it to see what happens but it work ok and big plastic ball look allright. Any advice and thanks in advance

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2 Answers

Anonymous user

Ball valve might have a small leak that letting water level get too high, so when water heats up and expands the tank overflows. Get fill level checked ball and the valve.
Answered3 November 2017
0

MA4 Plumbers

Rating: 4.9 out of 5
Clapham Junction, London
Cylinder thermostat or faulty programmer switch if the overflow comes from the big cistern. If it comes from the small tank, is the room thermostat or s faulty programmer. Tiziano
Answered5 November 2017
0