If you decide to attempt any type of furnace troubleshooting you must remember to disconnect all power sources from your furnace. If you don’t, you could easily cause major damage to yourself and your property. In the case of professionals it is always a better idea to call in a licensed contractor for commercial HVAC as the systems can be larger and more complex than a residential furnace.

If you have a gas furnace and are positive gas is flowing you might find that the furnace is not igniting. The first reality is that the ignition has failed whether through damage or age and needs to be replaced. If you decide to look for this yourself, it’s highly important that you do not actually touch it with bare hands at any stage of the inspection. If it passes your inspection, the problem may be further up the chain of processes and be an issue that lies with the control board. These are both problems that should be assessed by licensed contractors. If it is lighting and then going out you need to do some cleaning of the flame sensor which is reasonably simple to complete yourself as long as you follow specific directions.

In full electric systems there can be common problems that include burnt wires that can cause major problems in the use and ability of your furnace. Don’t forget to check fuses and other easily accessible and replaceable parts before moving onto the more complicated options mentioned in any furnace troubleshooting guide. If you’re unsure than don’t even begin to repair anything. Call a licensed contractor instead.

Always check filters and other replaceable parts whenever you attempt any type of furnace troubleshooting yourself. It’s vital that you check these often forgotten parts before you start to tamper with any fragile or dangerous components of your furnace. If you’re at all unsure about completing do it yourself furnace troubleshooting then it is best to call in a suitably qualified licensed contractor to do the job for you. No matter how small if you’re not safe or confident then you should not touch the system.

A good licensed contractor will provide you with a quote and offer you a free no charge service call to assess the problem. This may lead to a very low-cost repair or a major overhaul of your furnace – and one that your furnace troubleshooting investigation would never have uncovered. Because of this it’s important to at least consider using a licensed contractor before you attempt any furnace troubleshooting – otherwise you might find that you’ve wasted time and money on parts that were never going to be needed or make the furnace work properly.