67
9.2.7 Burner resonates
Possible causes Analysis Solution
Gas inlet pressure lower than 20mbar
or sometimes disappears.
Yes
↓ No
The home pressure regulator may be defective. Contact the
energy company.
There is recirculation of flue gases.
Yes
↓ No
Check the flue and air supply duct.
Gas-air control is not correctly
adjusted.
Yes
↓ No
Check the adjustment; see §8.9 and §8.10.
Burner seal is defective. Yes
↓ No
Replace the burner seal.
Burner is defective. Yes
Replace the burner.
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