Hi Just looking for some 'second opinion' or knowledge, as had someone round who failed to resolve the issue and is not clear on the cause.
So I have a BG 330+, it was serviced last October (including a flush of the heat exchanger). Wednseday morning noticed a lack of hot water the other morning (assumed the kids or partner had used it all), turns out more of an issue. My partner did note they had had a power cut (all the clocks rest) the day before (we seem to have them relatively often round here), not fuses were tripped though, so it may (or may not) be relevant.
I got home assuming something simple, and noted an F22 error (low pressure error). We have a gravity fed system with a tank,
so I checked the radiators had water in, and the tank in the loft. No problem. Alternatively online suggests the pump has died, which I didn't check.
So I called in the experts from a mid size local company.
Checked the above and agreed with my conclusions, also checked the pump which was running ok.
They managed to clear the F22 fault with a reset, but the boiler was heating very slowly (they also got another F22 fault later, but appeared to clear). Initially the pressure was reading 0.0 was eventually increased to 1.0 bar. The water through the boiler took 5 mins to raise a couple of degrees (and 20/30mins had not got over 55c (despite demand being set at 75), there was only a 2c different between the in/ out flow.
Gas pressure is also fine, also checked the thermistors, and checked the temperature externally. The guy said the boiler appeared to not be increasing gas flow and the fan was not coming on at a higher rate, so the boiler running at a lower heating rate. Clearly took a long time, with multiple resets and turning it on and off again (1 1/2hrs)
His suggestion is now that we strip down the boiler and clean out the heat exchanger, but appeared more in hope that anything. Anything else that is missing to check or something to keep in mind?
thanks
So I have a BG 330+, it was serviced last October (including a flush of the heat exchanger). Wednseday morning noticed a lack of hot water the other morning (assumed the kids or partner had used it all), turns out more of an issue. My partner did note they had had a power cut (all the clocks rest) the day before (we seem to have them relatively often round here), not fuses were tripped though, so it may (or may not) be relevant.
I got home assuming something simple, and noted an F22 error (low pressure error). We have a gravity fed system with a tank,
so I checked the radiators had water in, and the tank in the loft. No problem. Alternatively online suggests the pump has died, which I didn't check.
So I called in the experts from a mid size local company.
Checked the above and agreed with my conclusions, also checked the pump which was running ok.
They managed to clear the F22 fault with a reset, but the boiler was heating very slowly (they also got another F22 fault later, but appeared to clear). Initially the pressure was reading 0.0 was eventually increased to 1.0 bar. The water through the boiler took 5 mins to raise a couple of degrees (and 20/30mins had not got over 55c (despite demand being set at 75), there was only a 2c different between the in/ out flow.
Gas pressure is also fine, also checked the thermistors, and checked the temperature externally. The guy said the boiler appeared to not be increasing gas flow and the fan was not coming on at a higher rate, so the boiler running at a lower heating rate. Clearly took a long time, with multiple resets and turning it on and off again (1 1/2hrs)
His suggestion is now that we strip down the boiler and clean out the heat exchanger, but appeared more in hope that anything. Anything else that is missing to check or something to keep in mind?
thanks