Jaguar Boiler 28kW: Hot water only when the tap max open

[Rafal]

Hi,

My do-not-know-how-old Jaguar boiler 28kW developed an interesting problem: at first I had to open the taps to almost full to get the boiler started a nd hot water running. Then, it worked only with the tap in the kitchen down stairs, which is next to the boiler, but not with any taps upstairs. Today I cannot start the boiler even with the tap in the kitchen.

The boiler does not show any error message. I found the pressure to be 2.2 (a few months ago it was closer to 1.0), so I drained some water to bring i t to 1.2, but it did not helped.

Any ideas what else can be checked or done? It looks like a sensor / switch problem, but which one?

Cheers,

Rafal

[Allan Mac]

m: at first I had to open the taps to almost full to get the boiler started and hot water running. Then, it worked only with the tap in the kitchen do wnstairs, which is next to the boiler, but not with any taps upstairs. Toda y I cannot start the boiler even with the tap in the kitchen.

2 (a few months ago it was closer to 1.0), so I drained some water to bring it to 1.2, but it did not helped.

ch problem, but which one?