The answer to 'my furnace repair keeps shutting off' is that there could be several common causes, including a faulty thermostat, clogged air filters, issues with the pilot light or ignition system, or problems with the furnace's motor or blower. These issues can lead to the furnace shutting off prematurely or not running properly.
Some common symptoms of these problems include the furnace shutting off after a short period of time, the furnace not blowing warm air, or the furnace making strange noises. Solutions may involve cleaning or replacing air filters, resetting the thermostat, or diagnosing and repairing issues with the furnace's internal components.