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In order for the boiler to be serviced correctly it needs to be working.

Gas boiler service differs according to the type of boiler, but there are some things that must be checked on in any boiler. This will be done by the engineer according to the directions in the manual which included the boiler when it was installed. The main points that should be inspected are:

1. check for leakages

2. examine the gas pressure

3. check if it is producing carbon monoxide

4. check if it is operating correctly

5. inspect the general condition

6. check the pump and valves

7. look for adequate ventilation

8. examine the safety and tidiness of the flue

Old cast iron boilers that have an open flue will require to be dismantled and cleaned which is not required for modern-day boilers.

Plumber Belfast have a systems efficiency test. Depending on the condition and kind of boiler it can take anywhere from a half an hour to an hour and a half for a complete gas boiler service. Professionals are frequently ready to do servicing, specifically during the summer season, for significantly decreased rates, hoping that you will call them later if you require any gas boiler repair work.

If there is issue that a boiler is not working properly, and gas service is needed, there are some things that can be checked:

1. Ensure there suffices water pressure by looking on the pressure gauge. It must show 1.0-1.5 bar.

2. Make sure the pilot burner is lit.

3. If the pilot burner is lit however there is no hot water, or it is uncommonly noisy, it might be a gas valve or pump failure in which case an engineer needs to be called.

4. If there is warm water but no main heating, the diverter valve might not be operating.

5. If the top of the radiator is cold it may require to be "bled". There is a bleed valve near the top that will launch air. If it is cold on the bottom there is probably sludge or rust blocking the radiator.

If there is no heat at all inspect the gas and make certain it is turned on in addition to the thermostats and control switches. Ensure the pump is running and ensure the pilot burner is lit. Many of these minor gas boiler repairs can be done at house with making use of the producers’ handbook. If you can determine an issue, but are not exactly sure how to fix it even with a handbook, call a heating engineer for regular gas boiler service.

If there is issue that your gas service isn’t working correctly, then an annual maintenance check by a registered gas boiler service heating engineer is really crucial for security and efficiency.