If your home features a furnace, chances are you will one day need heater repair services. Knowing what fixing your heater involves before that day comes is a good idea. Knowledge of this will make it easier to explain your fault to a repair service provider. This goes a long way towards ensuring they provide satisfactory services. With proper knowledge and some experience, you can troubleshoot and repair some of the problems before calling a heater repair company. You must call a qualified technician if the furnace repair is beyond your abilities. Below are seven things you should know about repairing your heater.
Immediate heater repair is necessary if you suspect a gas leak while conducting a home heating repair. Do not light matches or turn on a switch if you smell natural gas near your furnace. Evacuate immediately and leave your door open if the odor is strong. Gas supply valves are often located by the gas meter on its inlet pipe. Turn off the gas supply valve immediately. You will have turned the gas off if the valve’s elongated stem is pointing perpendicular to the inlet pipe. You should then call a heater repair company from a remote location. It is important that you stay away until you are confident your home is safe.
Inadequate amounts of heat
Several issues can lead to low heat even if your furnace is running as well as it should. Check to confirm that:
- The flow of warm air is not blocked
- The thermostat is set correctly. Raise the temperature five degrees and wait for a few minutes.
- The room heating registers are open
- The filter is clean. Be sure to replace if dirty.
Lack of heat
Malfunctioning thermostats often lead to the failure of heating systems. Other possible causes are a tripped circuit breaker, blown fuse, or pilot light that has gone out. In this case, you can take basic heater repair measures even if you are not a heater installation expert:
- Ensure the thermostat is set to heat
- Check if you do not have a blown fuse. Check if the circuit breaker is on
- Ensure the power switch is switched on
- Look for a reset button since you may have to reset the motor. If nothing happens after you press the button, wait for 30 minutes and try again
- Check the ignition. Ensure the pilot light has not gone out. Make sure the gas valve is on.
If your furnace isn’t working after you check all of the above, then the thermostat is not faulty.
Frequent on and off cycles
A faulty thermostat can also cause continual on and off cycles. Adjust the heat anticipator and set it a calibration mark closer to the setting marked. Set it farther if your heater goes off and on often. Set it one mark away if the room temperature rises or dips abnormally before the unit goes off or on. Replace your thermostat if the problem persists. Replacement is an easy task that does not need the services of a heater repair company.
Inability to blow air
If your heater’s blower does not move air, but its motor runs, the belt connecting these two might be broken. In this case, replacement is an easy fix. Start by turning off the power and gas. Access the blower by removing the furnace cabinet’s front door and note the stamped belt number to get an exact replacement. Slip the replacement belt on the motor’s pulley first. Hold the belt in place and rotate the blower pulley by hand. Ensure your fingers don’t get caught between the belt and pulley. The belt should slip into place easily. You can also provide more slack by adjusting the motor mount if the belt seems to be too tight or setting it in place proves difficult.
Metal heating ducts can easily conduct noise from air-handling units to your rooms. But inserting flexible insulation between the furnace and duct breaks the conduction of sound:
- The expansion and contraction of ductwork due to temperature variations often results in a pinging or popping sound. These sounds can also be caused by the blowing of air past a loose flap. Track along the duct runs and listen for the sound. Once you have located the sound. Dent the sheet metal slightly to get a more rigid surface. Make sure it is one that is less likely to move due to thermal expansion.
- To ensure the furnace cabinet does not emit rattling noises. Secure the cover panels tightly.
- If you notice squealing sounds coming from your forced-air furnace, the belt connecting the motor to the fan is improperly aligned. It may be worn and in need of replacement, or out of position. Adjusting the motor mount tightens the fit. Follow the instructions provided in your owner’s manual to perform this task.
- The motor’s bearings are most likely shot if the blower is emitting a grinding noise. Shut down your furnace and contact a reputable heater repair service provider.
Faulty oil burner
If your oil boiler keeps going on and off, clean or replace the filter. If your oil burner is not working at all, check to see if:
- The thermostat is turned off or broken
- It is receiving electric power.
- A heat sensor in the stack or sensor in the burner has signaled your unit to shut off.
Performing a home heating repair service on oil-burning heaters is tricky. Call a certified heater repair technician if replacing the filter or checking the issues mentioned above does not solve your problem.