When your furnace fails, it is always worth spending a couple of minutes to troubleshoot before you call a repairer. Or assume the worst. Most of the problems with the furnace are simple. You can easily solve them without tools or technical expertise. This is what to do before seeking help.
Check thermostat settings
Some of the most surprising things about furnace failures are as simple as the thermostat. Ensure that it is switched to heat and that you have set the temperature above the current temperature of the room.
In case your thermostat operates on batteries, change them. Weak or dead batteries can cease transmitting signals to the furnace. And check the display too. When it is blank or flashing, then that is usually an indication that it is not communicating well.
Check the power supply
Even a gas furnace depends on electricity. Ensure the furnace has its power switch on. Most often, the switch is found either next to the furnace or the unit itself. At times, it may be accidentally turned off in the process of cleaning or other household repairs.
Then test your circuit breaker panel. In case the furnace breaker is tripped, switch it off. Then, switch it on again. Should it re-trip right away, do not operate it with force. It is an indicator of an electrical problem, which requires expert care. In this case, request an emergency furnace repair.
Ensure that the furnace door is shut
The majority of furnaces in the modern world have a safety switch that cannot work when the access panel or door is not completely closed. The door may not be seated properly. This is most likely if you have recently changed the filter or have carried out some cleaning.
First, unscrew the lid and place it back firmly. When it is fastened, turn on the furnace once more. If it doesn’t work, seek a repair technician.
Check the furnace filter
A dirty or clogged filter may limit the airflow and lead to overheating of the furnace, which then turns off automatically due to the safety measures.
Take out the filter and examine it. Does it appear dusty or filled with debris? Then change it to a new one. Wipe your filter at least once every month. Running a clean furnace will save you money over time.
See also: Tips for Finding the Best Dropshipping Products
Check the pilot light or ignition system
Check whether your older gas furnace has a pilot light on. Has it gone out? Then carefully relight it according to the manufacturer’s instructions. More recent models have electronic ignitions. When they go dead, you may be required to call in a specialist to figure out what has gone wrong. Do not be tempted to do any repairs to the ignition system, as that is risky.
Concluding thoughts
A furnace that fails to start does not necessarily indicate a significant failure. Sometimes, it is something you can do yourself. But if you have completed these steps and your furnace still refuses to start, call a technician.
