It is frustrating when your furnace suddenly stops producing a flame. The good news is that this is a problem that doesn't necessarily require the attention of a HVAC contractor. Why? Because what you are dealing with is a blocked nozzle.
For there to be a flame, fuel has to pass through the burner nozzle. If this nozzle gets blocked by dirt, it won't be able to deliver the fuel necessary for heating to take place. And given the fact that burner nozzles are very small in diameter, this is likely what is to blame for your furnace problems.
To solve this clogging problem, you should start by removing any dirt particles and debris that is blocking the nozzle. However, if the problem persists, simply replace the burner nozzle.
You can also avoid the inconvenience of having a malfunctioning furnace in your home, you should ensure that you feed uncontaminated fuel to your heating system. You should also take steps to minimize the risks of the contamination that usually occurs once the fuel is in the system. The following are tips that will come in handy in helping to ensure that your burner nozzle remains dirt-free.
Shutting the furnace off when filling the oil tank
This tip usually comes in handy in cases where the fuel getting used has contaminants. Shutting off the system when filling the tank will ensure that the fuel doesn't flow directly to the burner. As a result, it gives any contaminants time to settle at the bottom of the oil tank. Therefore, by the time you end up starting your system, the oil that leaves the tank for the burner nozzle will be contaminant-free.
Always fill the oil tank
Any time you refill your oil tank, you unsettle any contaminants that may have settled at the bottom of the tank. These contaminants then mix with the fresh oil, something that then increases their chances of travelling to the burner nozzle.
When you refill your tank, always ensure that you take full advantage of its capacity. A full tank will take longer to get depleted. This will reduce the frequency with which you have to do the refilling, something that will then reduce the incidences of any settled impurities getting stirred up.
It is important to note that the burner can also be blocked by water. To make sure that this is the case, simply disconnect the line feeding the burner assembly with oil, let some of the oil collect in a transparent jar and then hold the jar against light. If there are two separate films of fluid, you likely have water contamination. In such a case, draining the tank and then refilling with uncontaminated oil is a must. For more information, contact a oil burner service.