Boiler Services Covering Surrey, Hampshire and West Sussex

Oil boiler service and repair & Installation

All servicing is carried out in accordance with OFTEC (oil heating regulatory body) standards. We will also meet all necessary manufacturer servicing recommendations.

Service Specification

Below is what we carry out on a service:

Preliminary examination:
Check with customer whether there are any problems with the system.
Check the appliance location is suitable for the type of appliance.
Check the appliance for any damage before starting work on it.
Check for correct operation of the appliance, including consumer controls and the safety devices.
Check the electrical wiring complies with electrical regulations.
Check for correct clearances from combustible materials.
Examine Oil supply pipework for correct installation and clearances.
Check for correct ventilation to the room containing the appliance.

Remove burner from boiler.

  • Clean primary air combustion fan and housing.
  • Replace burner nozzle
  • Clean electrodes
  • Check flame failure [photocell] operation and safety cut off.
  • Replace or clean oil filter/s
  • Clean all boiler flue ways up to and including the first flue bend.
  • Clean combustion space and baffles
  • Refit burner, fire up and test.
  • Carry out full combustion test and record results.
  • Check fire valves for correct operation.
  • Check room ventilation.
  • Check all electrical controls I.E. programmer/time switch and thermostats.
  • Check oil tank filter element, if fitted,
  • Inspect oil tank.
  • Check oil line for leaks

Servicing Benefits

  • Minimise the chance of a breakdown.
  • Improve boiler efficiency.
  • Ensure that your boiler is operating safely.
  • Efficient burning of fuel oil.
  • Ensure carbon monoxide and soot are not produced during combustion.
  • Meet manufacturers maintenance requirements.

Oil Boiler Breakdown Standards


Oil boiler breakdowns will only be attended by a Flowtech engineer. We do not sub -contract work.
Engineers are trained to fault find on the oil boiler  and carry a  range of spare parts. This enables our engineers to repair the oil boiler whilst on site in the majority of cases.

If the engineer arrives on site and diagnoses that the job will take longer than two hours we will prepare an estimate before commencing work if you require this.

Faulty boiler?

Oil burner keeps tripping the lockout button?:
The little red button on the box of the oil burner itself. If your oil burner stops running, the first thing you should check is the reset button. If you press it and the burner fires up then that was the problem. If the button should trip again then there is a fault and you should schedule a service call immediately. Do not keep resetting the button and ignoring the problem.

Why does it trip?
It is a safety device. It shuts the burner down when it thinks there is a problem. Either there isn’t a flame which could be one of a few things or the the photo cell sensor is faulty