Troubleshooting Problems With Your Trane Gas Furnace

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Troubleshooting Problems With Your Trane Gas Furnace

9 March 2015
 Categories: , Blog


Perhaps the only thing worse than waking up on a cold winter morning and finding that your Trane gas furnace has stopped working, is making this discovery when you don't have any extra cash to call a repair contractor. The good news is, some of the most common reasons for furnace failure can be troubleshooted on a do-it-yourself basis without the need for any expensive equipment or materials. The guide below can help you to accomplish this task.

Before You Get Started

Before you begin the troubleshooting process, it is important to take note of what symptoms your Trane furnace is displaying. For instance, if the fan turning on? Are you getting enough air pressure from your vents?

When making a list of symptoms, you should know that many late model Trane furnaces have a cold air alert system built into them. Consequently, rather than simply shutting down all together, these systems will begin blowing cold air in order to alert you to the fact that something is wrong with your system. If your furnace is currently blowing cold air, remember that this is a system feature and should not be included with your list of symptoms.

Start At The Fuse Box

The first thing that you will need to check is that all your furnace is in fact getting power. If you can hear the system's fan running or the system is currently blowing out cold air, you can skip this step since the system is obviously receiving the power it needs.

If your system is not responding at all, you will need to check your fuse box in order to ensure the circuit has not been tripped. If you find a tripped circuit, do not automatically turn this circuit back on. Instead, first take the time to inspect your furnace for any signs of a power surge, such as burn marks. If you see no signs of a surge, you can turn the circuit back on. This should restore function to your furnace. However, if no circuit has been tripped or restoring power does not correct the problem, you will need to move on to the next step in the troubleshooting process.

Move On To The Thermostat

Next you will need to check to ensure your thermostat is working properly. Begin by checking to make sure the thermostat is set to heat and that the temperature is set above the current room temperature. If the fan is failing to come on at this point, try turning the fan setting from "auto" to "on." If you still get no response, remove your thermostat by unscrewing all external and internal screws.

Once the thermostat is off the wall, you will see a set of two wires that are leading from inside your wall to the back of your thermostat. Disconnect these wires from the thermostat and twist them together. If your furnace turns on at this point, your problem is a faulty thermostat and you will need to replace this item in order to permanently repair the problem. If the furnace still fails to turn on, reconnect your thermostat and move on to the final step.

Finish Up At The Furnace

The final step in the troubleshooting process will be to take a look at the control panel on your Trane furnace. This part of your furnace can be easily accessed by removing the front panel. Once you are able to see your control panel, take note of the pattern that is being made by the flashing light on the panel. This pattern corresponds to a diagnostic code that can be used to help determine what is wrong with your furnace. For instance, a series of three flashes will indicate a problem with your vent pressure switch. While some of these more technical problems can be repaired on a do-it-yourself basis, most of them will require the assistance of a qualified repairman. The good news is, even if you must call in a professional, having this diagnostic code in hand can help you to save on labor costs since you will be able to point them in the direction of the problem.