My Baxi Combi Boiler is only heating my radiators up to tepid.
The boiler is firing up okay, it is, according to the display heating the water to temperature and then the boiler is stopping gas. The radiator light on the boiler is coming on. One or two radiators on , I think, the front end of the circuit are getting hot the others not. The hot water is working just fine.
My thoughts were that the pump was problematic. The pump sounds like it is running and the send pipe to the heating is getting hot by the boiler. The pump itself is getting hot. The return pipe is tepid.
I tried tapping the pump with a hammer. I loosened the screw to check for air. I i turned the system off, isolated the boiler from the system and removed the from screw from the pump to check for debris, (very small amounts of dust), and to check that the pump turned freely, (it did).
All of this to no avail.
Given that the boiler is going on and off more or less as it should, I am still thinking that the pump is the problem, but before I shell out £130 for a new one, I just thought I'd check with you who know this stuff better than me.
Any thoughts guys?
Thanks
The boiler is firing up okay, it is, according to the display heating the water to temperature and then the boiler is stopping gas. The radiator light on the boiler is coming on. One or two radiators on , I think, the front end of the circuit are getting hot the others not. The hot water is working just fine.
My thoughts were that the pump was problematic. The pump sounds like it is running and the send pipe to the heating is getting hot by the boiler. The pump itself is getting hot. The return pipe is tepid.
I tried tapping the pump with a hammer. I loosened the screw to check for air. I i turned the system off, isolated the boiler from the system and removed the from screw from the pump to check for debris, (very small amounts of dust), and to check that the pump turned freely, (it did).
All of this to no avail.
Given that the boiler is going on and off more or less as it should, I am still thinking that the pump is the problem, but before I shell out £130 for a new one, I just thought I'd check with you who know this stuff better than me.
Any thoughts guys?
Thanks