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One of several worst emotions and thoughts on this planet is having to get in touch with a HVAC expert during the dead of wintertime as your heat is not turning on. There are a number of reasons why your heater may not work, and there are some things you should check before you call a heater repair technician.
Filtering system
You could have a filter that is full of dirt if your furnace turns on but does not seem to be blowing air. You might want to replace your filter immediately after each season. Change it right away if you check your filter and find that it is dirty.
Circuit breaker
If your thermostat appears to be working OK but your furnace is not turning on at all, the circuit breaker could be tripped. If necessary, this is an easy fix, as all you have to do is check the circuit for your furnace in your circuit box and reset it.
Pilot light
If you have a gas furnace, there is a pilot light that ignites your gas burner to provide the heat for the unit. This light might be out, so if it actually does, your heater can not blow heated air. You can easily check the pilot light and relight it if necessary. You should call in a heater repair technician if you smell a strong odor of natural gas.
Ignition sensor
A problem with your ignition sensor can also be a rationale your furnace may well not get the job done. These products are continually subjected to flames and may also get burnt off on the ends. Your furnace may not turn on or may not stay on if that happens. You can take off the sensor and use a wire brush or piece of sandpaper to reduce the soot. If that doesn’t fix the problem, however, the sensor is probably bad and will need to be replaced by a professional.
Thermostat
A typical reason for a furnace not to get the job done is a problem with the thermostat. If your heater isn’t turning on, check to make sure your thermostat is set to “heat” rather than “cool.” Check to make sure that there isn’t a time and date setting programmed in that is preventing the heater from coming on if you have a programmable thermostat. The good news is that if the problem is with your thermostat, it is an easy and relatively cheap fix.
Taking a look at these prevalent conditions will allow you to troubleshoot your furnace issues and avoid having to pay for http://www.airrepairpros.com/mckinney/