My Trane Furnace Can't Activate Heat From Downstairs

Location

• The troubleshooting process for Trane furnaces is the same no matter where the furnace and thermostat are located. You could be sleeping in a second-story bedroom and notice the furnace is not activating the heating process from downstairs in the basement. Or the thermostat in the living room may not be communicating properly with the furnace in the basement.

Thermostat

• A faulty thermostat could be the problem, according to Trane. Check your thermostat to confirm that it is on and set at a proper temperature for delivering heat. A call to a repair person could be necessary if the thermostat will not respond to settings. Troubleshoot other possibilities before calling for help, however.

Power

• Refer to your user’s manual for any components in your Trane system that must be plugged into electrical outlets. Also confirm that the thermostat has fresh batteries. Flickering images on the thermostat’s display panel could be a sign of weak batteries.

Fuel

• The furnace cannot operate without fuel. Confirm that the furnace is receiving fuel by checking the gas shutoff valve on the furnace. Also check other shutoff valves in your system, such as a shutoff valve at an outside propane fuel storage tank. Identify shutoff valves by reading your Trane user’s manual and service manuals left by your natural gas company or propane gas delivery agent. Check all the valves to make sure they are open.

Circuit Breaker

• A tripped or blown circuit breaker may cause the furnace not to activate. Check your home circuit breaker box to confirm that a switch or switches controlling the furnace are in the proper position. Reset the breaker box if necessary. Reset the breaker box by flipping a single master switch usually at the top of the box.

Alternative

• Contact a repair person if none of these options solves your problem. Your natural gas, propane or oil company may offer to come out for free to double-check your connections and may offer free advice about the furnace.