Good Evening,
I have a 3 yr old Navien CH240 propane combo boiler. This morning I noticed there was a fair amount of water (maybe half a gallon or so) that was on my basement floor from the pressure relief valve on the heating side. I believe the valve is a 30psi pressure relief valve. The pressure on the unit at the time was around 22 psi. I immediately thought the expansion tank failed. There is an air valve on the bottom of the expansion tank, where I used a tire pressure gauge. No water came out, and the tank read 29 psi. I am still getting heat in the house and hot water and no error codes have popped up. When I ran a sink for hot water to clean dishes the unit was at 55 psi. I'm not sure what the normal pressures or pressure range are supposed to be, but my understanding is if the pressures go too high the unit would shut down. Any suggestions or ideas on where I should go next?
Thank you
I have a 3 yr old Navien CH240 propane combo boiler. This morning I noticed there was a fair amount of water (maybe half a gallon or so) that was on my basement floor from the pressure relief valve on the heating side. I believe the valve is a 30psi pressure relief valve. The pressure on the unit at the time was around 22 psi. I immediately thought the expansion tank failed. There is an air valve on the bottom of the expansion tank, where I used a tire pressure gauge. No water came out, and the tank read 29 psi. I am still getting heat in the house and hot water and no error codes have popped up. When I ran a sink for hot water to clean dishes the unit was at 55 psi. I'm not sure what the normal pressures or pressure range are supposed to be, but my understanding is if the pressures go too high the unit would shut down. Any suggestions or ideas on where I should go next?
Thank you