How To Resolve Common Gas Propane Furnace Problems


The four most prevalent furnace issues are listed below. Continue reading to learn how to repair many of them, as well as what you can do to prevent future furnace issues.

After you troubleshoot your system and still need professional help, schedule a furnace repair today!


One of the most typical furnace problems is a lack of heat. There was no one single problem that caused the lack of heat, so you'll need to examine everything carefully to discover what's wrong.

Adjust the thermostat if necessary. To begin, check the thermostat. The heat may have been switched off or set to a low level. If this is the case, adjust the thermostat's temperature setting.

If it's not a thermostat problem, check to see whether the propane valve is closed. If the valve is shut, no gas can enter the furnace to warm up the air. If you discover that it is shut, you may either open it yourself or seek help from a professional if you need it.

The third possible problem is a blown fuse. This fuse will need to be changed. You'll need to book an appointment for a gas heater repair to do so.

When it comes to propane, always exercise caution. With interactive safety training that the entire family can grasp, educate your children.

Lastly, if your furnace has a pilot light, check to see whether it's on by peering into the tiny window at the front of the unit. The flame should touch the end of the thermocouple. Check to see if your furnace is turned on using an electronic ignition instead of a pilot light.


If your furnace's fan isn't working, check the inspection window on the blower compartment of the furnace first.

Is there a blinking green light? If that's the case, go on to the next technique for repairing your heating system.

If the light is red or nothing at all, your heater may have a problem with the transformer, control board, blower motor, or run capacitor.

If you saw a green light, check the breaker. If it's tripped, look for loose wiring or burned areas on the control board. Do not reset the breaker until a competent specialist has addressed these concerns.


Suddenly, you discover that your gas furnace's blower has been on continuously for an hour or more. What do you do now?

Do some troubleshooting to determine if it is the setting or the fan that is the problem.

Check the thermostat to see whether your fan is on continuously. The blower should not be on 24 hours a day, seven days a week; It needs time to cool down between uses. Set your thermostat to automatic so that the blower can turn on and off as needed.

The other reason the blower won't turn off is because of a faulty control switch on the fan. If you can reach it, check that the switch for turning off the blower is in good working order.


A gas furnace should turn on and off throughout the day. If it's turning on and off too frequently, that might indicate a problem.

The issue could be the thermostat, air filter, belt or blower motor.

Check the filter and thermostat first. Replace a dirty air filter if necessary. A clogged air filter can cause frequent on-off activity. Check the thermostat to be sure it's set to auto as well. If the thermostat shows on, high or continual, change it to auto

If the problems listed above still aren't alleviated, it's time to call your furnace repair company. The problem may be more difficult than this, such as a worn belt or incorrect tension, or motor ports might need to be lubricated.


Get in the habit of having your gas furnace serviced on a regular basis to avoid many of the issues it may experience. Get in the habit of scheduling maintenance by a professional trained expert. During these visits, your repair person will look for and address any problems before they become serious.

Contact a furnace repair firm at the end of summer or the start of fall to come to your property and fully inspect and repair your heating system.

Regular maintenance visits ensure your heating system is in tip-top operating order and reduce the likelihood that you will wake up to a chilly house in the middle of winter.

Prevention is often much less expensive than repairs after neglect.

You should also schedule maintenance visits on a regular basis, as they are important for the long-term health of your chimney. There are certain maintenance activities that you can accomplish yourself during the duration of the professional visit. For example, change the air filter on a regular basis. Follow the manufacturer's instructions regarding how often you should change the filter and do so accordingly.

Check and replace the battery on your thermostat every spring and fall.

If you smell gas, contact your propane supplier immediately.


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.