Investigating Boiler Troubles
Tuesday, November 29th, 2011Modern boilers used in central heating systems tend to give minimal trouble and this is especially true when they are regularly serviced. In the event that your boiler fails to work, there are a number of things you can do yourself to address problems prior to calling for the help of a heating engineer. This is certainly true of gas-fired boilers, although with oil-fired boilers you should clean the filters several times a year and ensure that an expert carries out regular servicing.
Boilers can fail to function efficiently for a number of reasons. In a solid-fuel boiler, problems can be caused by soot in the flueways or ash clogging up the grate. In this instance, light cleaning should prevent problems from occurring. A common problem with the gas-fired boiler is the lack of a pilot light. Thermostat and ignition system problems are also common.
In the event that you experience a faulty pilot light, try adjusting the height of the flame by turning the tiny screw on the gas valve and see if that fixes the problem. A blocked nozzle could also be to blame and you could use a cocktail stick to try and clear it. The nozzle may be tricky to reach and you may need to remove the main burner assembly. If your nozzle is blocked completely, you may need to find a professional willing to replace it. If the pilot light will not light, you may need to replace the thermocouple. This will involve the unscrewing of the fixing nuts.