This is a mystery

[obseen16]

Hi Guys,

got called to a flat today, the landlord told me the tenant has complained that the boiler is losing pressure, the landlord topped pressure up on friday and today (monday) it was almost on zero. i figured the most likely scenario would be the blow off, so i re pressured the system and waited outside for a drip from the blow off pipe, no drips at all. the flat is above an office and they have not noticed any damp patches yet so probably not a leak under the floor, im wondering if its a small split in the plate heat exchanger but wouldnt you have to have a lot of showers and hot water washes to reduce the pressure to zero over 3 days?

the boiler is a Worcester 30Si
so far i have asked the tenant to monitor the pressure and check if it goes down when he uses the hot water.

im not to sure what else it could be, unless a damp patch appears anytime soon.

 

[Billy Bob Bob]

is a si a HE?

 

[Reg Man]

Gas Man, Are you thinking what I am? HE boiler! no sign of leakage anywhere and checked the entire system. Perforated heat exchanger? draining down the condensate drain. Just guessing.

 

[Billy Bob Bob]

Gas Man, Are you thinking what I am? HE boiler! no sign of leakage anywhere and checked the entire system. Perforated heat exchanger? draining down the condensate drain. Just guessing.

spot on Reg man

 

[obseen16]

ah now theres a thought. ill have a look into that one.

 

[SafeGasInstall]

pls let know how you get onobseen16 .

 

[obseen16]

well i called the landlord today to see what the pressure was like and apparently it hasnt dropped at all since i topped it up on monday. ill keep you updated with this one.