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I have a 3 year old Vaillant combi boiler. Not sure of the model, but it is the type with the lcd digital temperature display on the front, along with an analogue clock setting doobrie.
This problem started today, as a bath full of hot water was ran last night. No changes have been made.
If I run the hot tap, the water heats up slowly, never getting truly hot, then cools down again. This happens continuously. The pressure gauge is at 1.3 bar.
The CH appears to be working fine, and I tried switching it off to see if that would help, but it didn't.
Any ideas would be much appreciated.
This problem started today, as a bath full of hot water was ran last night. No changes have been made.
If I run the hot tap, the water heats up slowly, never getting truly hot, then cools down again. This happens continuously. The pressure gauge is at 1.3 bar.
The CH appears to be working fine, and I tried switching it off to see if that would help, but it didn't.
Any ideas would be much appreciated.