Have a Potterton Suprima 80 (on an open CH system - tanks in loft), which for the last 6 or so months has been gradually introducing air into the HW radiator circuit. This results in the header tank in the loft overflowing about every 4-6 weeks.
I do try to keep an eye on it, and bleed the radiators, but air keeps on introducing itself anyway, so its a never ending job. Typically takes about 4 weeks for enough air to enter to trigger an overflow.
Hear one bathroom rad making gurgling noises from time to time, which don't hear from the CH rads.
Only additional possible contributing factor is that our 2 year old turned up the thermostat on the HW tank to c.95C without anyone noticing...
. At this setting for about a day before was noticed - would this have damaged anything leading to continual air ingestion...
...or is it the Suprima at fault?
I do try to keep an eye on it, and bleed the radiators, but air keeps on introducing itself anyway, so its a never ending job. Typically takes about 4 weeks for enough air to enter to trigger an overflow.
Hear one bathroom rad making gurgling noises from time to time, which don't hear from the CH rads.
Only additional possible contributing factor is that our 2 year old turned up the thermostat on the HW tank to c.95C without anyone noticing...
. At this setting for about a day before was noticed - would this have damaged anything leading to continual air ingestion... ...or is it the Suprima at fault?
