If your home heater isn’t working, confirm the thermostat is set to Heat and that the system has power, then schedule a Del-Air Heating, Air Conditioning, Plumbing and Electrical technician if it still won’t run. Most no-heat calls trace to incorrect thermostat settings, dead batteries, a tripped breaker, or a system safety lockout. In many cases a repair restores heat; consider replacement only if repeated failures or major parts make repair uneconomical. A quirk we see often is a heat pump that won’t heat right after a brief power outage until its internal safeties reset. Our team handles these issues routinely around the Ponte Vedra area. If a replacement becomes the smart move, free estimates on new systems are available.
Try these safe checks before you call:
- Set thermostat to Heat and raise the setpoint above room temperature
- Replace thermostat batteries and verify schedule settings
- Check the HVAC breaker and the furnace/air handler switch
- Inspect the air filter; replace if clogged
If you smell gas, leave the home and call your utility before any HVAC service.
Updated: 2026-06-18
Need help in Ponte Vedra, FL? Call (904) 310-7355 or book online.