Potterton Titanium problem

[giarc00007]

customer just been on phone saying when boiler is turned on it is constantly lighting for hot water when they arent calling for hot water, but if they ask for hot water it stops. if they ask for heating it will overide the hot water. any suggestions guys?

 

[IDCHAPPY]

Flow switch stuck? hot water leak?

 

[giarc00007]

Flow switch stuck? hot water leak?

i was thinking flow switch myself. the strange one was that by turning hot tap on it would stop calling for demand.

 

[IDCHAPPY]

So it's a baxi (effectively), thought they has a 10 year warranty?

So if they ask for hot water do they get hot water? odd one dude

 

[Leo21]

Hall effect Sensor fubared.

 

[Leo21]

Hall effect Sensor fubared. A little neon lights up when a tap is ran, have a look see what thats doing. Disconnect it perhaps, see what happens. If it's not the sensor and someone hasn't tampered with it, it can only be pcb interpreting the signal wrong.

 

[giarc00007]

So it's a baxi (effectively), thought they has a 10 year warranty?

So if they ask for hot water do they get hot water? odd one dude

That's what's weird boiler ignites for hot water when no tap is open, but when hot tap is open it stops the demand