Before you call
Common signs you may need electric furnace repair
Heating problems usually start as comfort or safety concerns before they become a full no-heat failure.
- No heat, weak airflow, or rooms that stay cold even with the thermostat turned up.
- The system starts and stops repeatedly, makes unusual noises, or gives off a burning smell.
- You are dealing with a sudden failure during cold weather or a safety-related concern.
Heads up: If your heating system is completely down, calling is usually the fastest way to get help.
Service details
The overview below explains how this service works, common problems we see, and what Sacramento homeowners should expect before scheduling.
Electric furnaces are reliable, clean-burning, and safe — but like all heating equipment, they eventually need repair. PULSE HVAC technicians are experienced with electric furnace systems and stock common replacement parts for the major brands.
How Electric Furnaces Work
An electric furnace heats air by passing it over electric heating elements — similar to a large toaster. Multiple elements (typically 3–5 in a residential unit) energize in sequence, controlled by sequencers, to prevent a large simultaneous electrical draw.
Common Electric Furnace Repairs
Heating Elements
The most common failure point. Elements are nichrome wire coils that heat up when electricity passes through them. They can break from thermal cycling, age, or a single power surge. Each failed element reduces your heating capacity.
Symptoms: Reduced heating, rooms not reaching temperature, high electricity bills relative to heat produced
Sequencers
Electronic or bimetal switches that stage heating elements on sequentially. Failed sequencers can cause elements to fail to energize, or cause them to stay energized (potential overheating and tripped limits).
Thermal Fuses and Limit Switches
Safety components that cut power if the furnace overheats. These commonly trip due to airflow restriction (clogged filter, blocked vents). We test and reset or replace as needed.
Control Boards
Modern electric furnaces use circuit boards to control sequencing, blower speed, and safety systems. Board failures can cause erratic behavior or complete shutdown.
Blower Motor
The blower distributes heated air through your ductwork. Motor failures cause heat to build up in the unit, tripping the high-limit switch.
Should You Repair or Replace?
If your electric furnace is over 15 years old and requires a major repair, consider upgrading to a heat pump instead. A heat pump provides both heating and cooling more efficiently than an electric furnace — and SMUD's current heat pump rebates can significantly offset the upgrade cost.