Furnace Repair in Garland, Texas

The most common causes are a cracked hot surface igniter, a dirty flame sensor, a blocked pressure switch hose, or a failed inducer motor. Modern furnaces store fault codes that point directly at the failure, which is where our technicians start.

It means the furnace heats up too fast, hits the high limit, and shuts off before satisfying the thermostat. It is nearly always an airflow restriction. Fixing the limit switch without correcting airflow just delays the next failure.

Yes. A cracked exchanger can allow combustion gases into the supply air. If we find one in a Garland home we will show you the evidence and recommend shutting the furnace down until it is replaced.

Fifteen to twenty years is typical in Garland, since Texas furnaces run relatively few hours compared with the air conditioning side. Neglected units and units in hot attics tend to fall at the lower end of that range.

Yes, along with dual-fuel systems that pair a heat pump with a gas furnace. Each type has a different failure profile and our technicians carry the common parts for all of them.

A fall check is worth it in Garland mainly for the combustion and safety inspection. It also catches the airflow and ignition problems that turn into a no-heat call on the first freezing night.

Twice a year is the standard: cooling in spring, heating in fall. Texas systems run far more hours than equipment in cooler states, so annual-only service tends to let small problems mature into breakdowns. Details are on our Garland AC tune-up page.

Size is determined by a load calculation, not square footage alone. Insulation, window area and orientation, ceiling height, duct condition, and shading all change the answer. We run that calculation as part of every replacement quote, because an oversized unit short cycles and leaves the house humid.