Boiler dripping when heating water (1 Viewer)

[Steve101uk]

Hi Guys

I have noticed the boiler dripping from the over flow whenever we heat up the water. No dripping at all when not heating water but when we switch on the hot water it starts to drip. Likewise it stops when the hot water is turned off. My question is, is this normal? I haven't noticed this before but I am not always on tarmac like we are today. Thanks for any response in advance...thanks Steve

 

[treetops1]

Probable got too much pressure on you water intake.check pressure and reduce .mine from memory is about 40 psi

 

[scotjimland]

Pressure relief valve probably needs cleaning or replacing.. it may just need removing and descaled with vinegar

https://www.ebay.co.uk/p/Truma-ULTRASTORE-Safety-Drain-Pressure-Relief-Valve-70142-05/1805719980

 

[Manic]

Or it could be this valve, had to replace mine as it was dripping.
https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.co.uk/ulk/itm/282971882536

 

[Duck Truck]

We had our boiler dump valve dripping
had to take it apart it was a build up of calcium

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[Lenny HB]

Would help to know what heater you have.