What is a Combi Boiler Pressure?
Combination boilers or combi boilers as they are more commonly known sometimes stop working due to a drop in their combi boiler pressure. Problems related to combi boiler pressure are most often resolved right away and would just take a matter of seconds. There are reasons why combi boilers can encounter problems related to its pressure. One of the most common reasons is that the combi boiler pressure is lost in a central heating system especially when the radiators are drained. Once the combi continually loses its combi boiler pressure then, you have a leak.
It is very important to check if the radiator valve is working properly to avoid problems with the combi boiler pressure from time to time. You should check all radiator pipes and boiler valves for evidence of leaking as well. Leaks are normally very easy to spot as the water in the system is discolored. Once you found a leaking valve, try to re-tighten it to stop the leak, otherwise replace the valve. Most boilers require just over 1 bar of combi boiler pressure when switched off.
Rheem RTGH-95DVLN 9.5 GPM Indoor Direct Vent Tankless Natural Gas Water Heater
- 94-Percent Energy efficient with stainless-steel condensing heat exchanger
- Intelligent electronic controls designed to increase energy efficiency and safety
- Third party efficiency listed by AHRI
- Up to 38-Feet of 3-Inch PVC Pipe or 5-Feet of 2-Inch PVC Pipe
- Low Nox Version
If the combi boiler pressure is below the minimum required for your boiler, then you should slowly open the valve on the filling loop. The valve usually has a handle attached to it but a suitable tool may be needed. You should hear the water moving into the combi.
Do not forget to keep an eye on the pressure dial to avoid problems. When it reaches the correct pressure, you need to turn the valve off. Knowing what to do and how to maintain your combi boiler will help you address problems related to your combination boiler pressure easily. It is also best to seek or ask for assistance once you notice that the boiler problems with the pressure on your combi boiler keeps repeating.