Vaillant gas boiler F.28: what it means and when to call a pro · Brazil
Severity: Stop nowVaillant gas boiler error F.28. The boiler failed to ignite (no flame was detected) and has locked out.
Meaning
The boiler failed to ignite (no flame was detected) and has locked out.
Severity
Stop now
Stop. Switch it off and call a pro
Steps are not shown for this code because no qualified person has reviewed them yet. What is safe: switch it off, follow the Do not list and call a pro.
Do not
- Do not keep pressing reset. The maker allows three resets at most.
- Do not take the boiler casing off.
Source
The repair: Boiler ignition lockout repair
Prices for repairs in Brazil are in BRL.
Other Vaillant codes
- Vaillant F.29 The flame went out during operation, or the flame sensor signal is faulty.
- Vaillant F.32 The fan is faulty or is not reaching the correct speed.
- Vaillant F.61 The boiler cannot actuate its gas valve, which indicates a fault in the gas valve assembly.
- Vaillant F.63 The memory chip (EEPROM) on the boiler's control board is faulty.
- Vaillant F.75 The boiler did not detect the expected pressure change when the pump started.
Brands in our catalog for gas boiler: Ariston, Baxi, Bosch, Ferroli, Ideal, Potterton, Vaillant, Viessmann, Worcester Bosch. The same code on another brand is not in the catalog yet, and we do not guess what it means.