Heat Is Not Coming On
If you turn the thermostat up and nothing happens, the break is somewhere between the thermostat and the blower. We find where.
We follow the heating sequence until we find where it stops.
Local Heating Service
When your heat stops working, the first step is finding out why.
John Calhoun Electric & HVAC provides heating repair for homeowners throughout Roanoke, VA and nearby communities. We work on heat pumps, furnaces, electric heat, thermostats, dual-fuel systems, and the electrical and control parts that keep heating equipment running.
Schedule Heating Repair Call NowPractical diagnostics
Heating problems are not always caused by the part you expect. Heat stops for a lot of reasons. A thermostat setting, the blower, a control board, the reversing valve, or an electrical fault.
Our technicians check the equipment, find the cause, and explain what needs to be repaired.
A heating system has several parts that need to work together. When a homeowner says the heat is not working, we do not assume the entire system has failed. We check the equipment and follow the problem until we understand what is happening.
A complete system check
Here is what we check:
Our service history includes heating problems that turned out to have very different causes.
In one home, the heating system was shutting down because of a control problem during the heat pump's defrost cycle.
We have also found heating problems tied to blower motors, thermostats, airflow restrictions, and system controls. The goal is to repair the problem that is actually affecting your system.
Heating troubleshooting
If you turn the thermostat up and nothing happens, the break is somewhere between the thermostat and the blower. We find where.
We follow the heating sequence until we find where it stops.
Low refrigerant, weak airflow, or a bad reversing valve all cut how much heat you get.
Our technicians have worked on heat pumps with low refrigerant, control problems, reversing-valve concerns, and systems that were not operating correctly during heating mode.
We check how the complete system is operating instead of judging it only by whether the outdoor unit is running.
Our work records include blower motors that hummed but would not start, motors with failed windings, loose electrical connections, and motors that needed replacement.
We check the motor, capacitor, wiring, and power going to the blower to determine why it is not working.
Heat pumps use controls to manage heating, cooling, and defrost operation. Our technicians have diagnosed systems that entered lockout because they were not operating correctly during the heating and defrost cycle.
A system that keeps resetting, stopping, or displaying an error should be checked before the problem gets worse.
Heat pumps fall back on electric auxiliary heat when they need help. If auxiliary heat runs too much, the house stays warm and your power bill goes through the roof.
The cause is usually the heat pump, the thermostat, or how the system was set up.
We work on heat pumps, electric backup heat, and dual-fuel systems, and we check whether yours is running the way it should.
A furnace that runs too hot shuts itself down. Our service records include a gas furnace that was running hot because airflow was restricted by a dirty screen before the heat exchanger.
The technician cleaned and serviced the furnace and also checked the high-limit control, return airflow, and thermostat setup. Airflow is an important part of safe furnace operation, so overheating should not be ignored.
Sometimes the heating equipment is capable of working, but the controls are keeping it from operating correctly.
Our team has serviced and replaced thermostats, corrected thermostat wiring and programming, reset controls, and worked with thermostats controlling heat pumps, gas furnaces, electric heat, and dual-fuel systems.
A thermostat problem looks exactly like a dead furnace. We check it either way.
Heating repair for Roanoke homeowners
Roanoke winters swing hard. A cold morning finds every weak part in a system. When your heating system is not working correctly, you need more than a quick guess at the problem.
John Calhoun Electric & HVAC repairs heat pumps, furnaces, electric heat systems, thermostats, blowers, controls, and other heating equipment throughout the Roanoke area.
Our technicians use the same practical diagnostic approach whether the problem is a failed motor, an airflow issue, a thermostat problem, or something deeper inside the heating system.
If the system is aging or needs a major repair, we can also explain heating installation and replacement options. Regular heating maintenance and tune-ups may help identify developing problems earlier.
If your home is not getting warm, your heat pump keeps shutting down, your furnace is acting differently than normal, or you are not sure your heating system is working correctly, contact John Calhoun Electric & HVAC to schedule heating service.
Schedule Heating Service