Most issues with your heater will probably require the service of a professional. However, some maintenance and troubleshooting tasks are basic enough for any homeowner to perform. Issues with your heating system can be potentially dangerous, so always assess problems carefully and be ready to call a professional for furnace repair.
Less Than Desired Heat
Sometimes a system may continue to operate, but you will notice a reduced flow of warm air. When this occurs, check to make sure no blockages are preventing warm air from coming out of the appliance. Turn the thermostat up about 5 degrees and watch to see what happens with the heater. If the unit continues to operate inefficiently, call for professional assistance. Check all heat registers in your home to ensure they are open to allow air to flow through. Replace the filter to ensure that you have a clean filter in place. Check the belt that operates the blower to see if it is broken. A broken belt will not move air, so it will need to be replaced.
Absence of Heat
Check the thermostat of the appliance to ensure it is set to “heat.” If your unit operates between heating and cooling, it may be set to “cool” instead of “heat.” Check your circuit breaker or fuse box to ensure that a circuit hasn’t been tripped or a fuse hasn’t blown. To reset a tripped circuit breaker, flip it off and on. To repair a blown fuse, replace it. Call an electrician if the circuit breaker trips or if the fuse blows again. Check to make sure your appliance is on. Try pushing a “reset” switch to restart the furnace. Turn the power off to the heater and check for a blown fuse located in the power switch. If you find a blown fuse, replace it. Check the pilot light for a gas furnace. If the pilot light is out, several issues may have occurred. Follow unit instructions to relight the pilot light. If the pilot light goes out again, your unit may have a clogged pilot orifice or faulty thermocouple. It’s also possible that the setting for the pilot light is too low and needs adjusting. Check the gas pipe valve for a gas-burning or oil-burning furnace to ensure it’s turned on.
Cycling Too Often
Furnace repair for a unit that cycles too frequently may involve the thermostat. Many thermostats are calibrated to provide longer heat cycles. Check the setting and move the lever toward the side that indicates longer run periods. Wait for several hours to allow the heater to recalibrate and assess how it is running. If you continue to experience problems, you may need to replace the thermostat.
Home furnace repair can resolve excess white noise in your home. Ascertain where noise originates and then observe the system while it’s operating to determine why the noises are occurring. You may notice that the heater rattling because of loose cabinet housing or a slipping belt causing squeaking or squealing sounds.
If you can’t resolve your appliance issues, call a professional for furnace repair to keep your system running efficiently and effectively.