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List servicing for water heaters
1- check it's working or any known faults.
2 -Flue flow test ( smoke pellet in Combustion chamber, extractors on)
3- Clean burner and anti vitiation sensing pilot
4 - Check flame picture, burner pressure and gas rate.
5 - spillage test.
6 - case back on, check controls.
Before servicing an appliance you need what?
Manufacturers instructions.
After a satisfactory soundness test it is important to do what before working on an appliance?
Have quick visual check of boiler installation, pipework and flue.
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