PausitoRoutine BuilderHow often should you check your boiler’s water pressure?
Check your central heating boiler’s water pressure on the pressure gauge once a year and top up if needed.
Pressure that’s too low can make your boiler shut down, pressure that’s too high strains the system. Bosch and Vaillant recommend checking once a year whether you need to top up; for an older boiler, Bosch recommends every 6 months. If the pressure keeps dropping, have a professional take a look. The right value is in your manual, usually 1 to 2 bar with a cold boiler.
- Read the pressure gauge on the boiler
- Compare with the recommended pressure in the manual (usually 1 to 2 bar cold)
- Top up via the filling valve if the pressure is too low
- Close the filling valve properly and check again
More about this task
Why does it matter?
Pressure that’s too low can make your boiler shut down, pressure that’s too high strains the system. Bosch and Vaillant recommend checking once a year whether you need to top up; for an older boiler, Bosch recommends every 6 months. If the pressure keeps dropping, have a professional take a look. The right value is in your manual, usually 1 to 2 bar with a cold boiler.
How do you go about it?
Read the pressure gauge on the boiler. Compare with the recommended pressure in the manual (usually 1 to 2 bar cold). Top up via the filling valve if the pressure is too low. Close the filling valve properly and check again.
What source is this answer based on?
This answer is based on: Bosch Home Comfort België, Vaillant Nederland.
5 to 10 minutes.
- none
Your routine is only saved once you confirm. No account, on this device.
This is a general guideline. Always follow the manual of your appliance or product too.
Source
- Bosch Home Comfort België — De ideale waterdruk van je cv-ketel
- Vaillant Nederland (fabrikant) — Cv-ketel bijvullen
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