Below are the four most common furnace problems. Read on and know how to fix many of them and what you can do to prevent furnace problems in the future.
Having no heat is one of the most common furnace problems. No one issue could have caused the lack of heat, so you will need to do some investigating to figure out exactly what is wrong.
First of all, check the thermostat. The heat may be turned off or set to a low temperature. If this is the problem, adjust the thermostat setting.
If it is not a thermostat issue, check to see if your propane valve is closed. A closed valve means that propane can’t flow into the furnace to heat the air up. If you find that it is closed, you can open it up yourself or consult a professional if you need assistance.
The third possible cause of no heat is a blown fuse. This fuse will need to be replaced. To do so, you will need to schedule a gas furnace repair.
Always be extremely careful when dealing with propane. Educate your children with interactive safety learning exercises that the whole family can easily understand.
Lastly, if your furnace has a pilot light, check to see if it is lit by peering in through the tiny window at the front of the furnace. The flame should touch the tip of the thermocouple. If your furnace has an electronic ignition instead of a pilot light, check if it is on.
The Fan is Not Running
If you find that your furnace’s fan is not running, first take a peek into the inspection window of the blower compartment on the furnace.
Do you see a flashing green light? If so, move on to the next furnace troubleshooting tip.
If there is a red light or no light at all, your furnace may have a problem with the transformer, the control board, blower motor, or the run capacitor.
If you saw a green light, check the breaker. If it is tripped, look to see if there is loose wiring or burn spots on the control board. Do not reset the breaker until a trained professional has repaired these issues.
Blower Does Not Turn Off
Suddenly, you notice that the blower on your gas furnace has been blowing non-stop for an hour or more. What now?
Do some troubleshooting to determine if it is the setting or the fan that is the problem.
First, check the thermostat to see if your fan is set to continually blow. The fan should not be on 24/7, as it needs time to cool off between sessions. You should set your thermostat to automatic so that the blower may turn on and off as needed.
The other reason the blower does not turn off could be because of the control switch on the fan. If the switch is not allowing the blower to turn off, this part will need to be replaced.
Furnace Turns On and Off Too Often
A gas furnace should turn on and off throughout the day. However, if it is turning on and off too frequently, it could signal a problem.
The issue could be the thermostat, air filter, belt or blower motor.
First check the two things that are easy to fix: the filter and the thermostat. If the filter is dirty, replace it with a new one. A dirty air filter can cause frequent on-off activity. Also, check the thermostat to ensure that the settings are programmed to auto. If the thermostat reads on, high or continuous, change it to auto.
If these two adjustments don’t solve the problem, it’s time to call your furnace repair company. The fix may be more complicated, such as the belt having the wrong tension or being worn out, or the motor ports may need to be lubricated.
Maintenance Tips for Your Furnace
To avoid many of the gas furnace problems you might run into, get in the habit of scheduling regular maintenance by a trained professional. During these appointments, your repair person will find and fix concerns before they become a serious issue.
Every year, at the end of the summer or the beginning of fall, contact a furnace repair specialist to come to your home to fully inspect and maintain the furnace.
These maintenance visits will get your furnace ready for chilly weather and significantly reduce the chance that you wake up to a cold house in the middle of winter.
Prevention is often much less expensive than repairs after neglect.
There are some maintenance tasks you can do yourself in between professional visits. For example, change the air filter regularly. Check the manufacturer’s directions for how often you should change the filter and follow that advice.
Check and replace the battery on your thermostat every spring and fall.
If you smell gas, contact your propane supplier immediately.
Help Is Available
When troubleshooting your furnace problems, never hesitate to contact a trained professional.
All furnaces, even new ones, could pose combustion or other safety hazard risks. It’s always best to have a specialist take a look and suggest the right solution.
Check out 3 reasons you should use propane to heat your home.