Grant Boilerhouse fault 1
Visible smoke from flue or high smoke number
Oil boilerWhat it means
Boiler operates but produces visible smoke from the flue, or exhibits a high smoke number reading, indicating incomplete combustion.
Likely causes
- Motor/pump seized or tight
- Insufficient air supply
- Poor condition of the fan
- Inadequate room ventilation
- Incorrect nozzle size and type
- Fuel pressure too high
Where to start
- Check if motor/pump is seized or tight
- Check the air damper setting and the condition of the fan
- Check room ventilation is adequate, see Section 9.1
The full answer, free
- 34 more checks in order
- The readings and component tests from the manual
- How to put it right, step by step
- The manual page for this fault (page 46), right under the answer
Safety: Isolate oil and power before you touch the burner. Do a combustion test after any burner adjustment or part change. OFTEC (or equivalent) work only.
From the Grant manual for the Boilerhouse. Check the model on the data plate before you order parts.