The answer to 'furnace repair freezing up' is that a frozen furnace is a common problem that can be caused by several factors, including a blocked air filter, low refrigerant levels, or a malfunctioning blower motor. Symptoms may include ice buildup on the coils, reduced airflow, and the furnace shutting off unexpectedly.
In many cases, a frozen furnace can be addressed with some basic troubleshooting and maintenance. Homeowners can try replacing the air filter, clearing any blockages in the airflow, and checking the thermostat settings. However, if the problem persists or the homeowner is not comfortable performing the repairs, it's best to call a professional HVAC technician who can diagnose and fix the issue properly.