What to check before you call, in plain English. Written by Jax, the owner and tech at Frost Fire Heating & Cooling.
Heat not coming on, a heat pump covered in ice, a furnace that keeps shutting off. A lot of HVAC problems have a simple cause you can check yourself in a few minutes. These guides walk you through the same safe checks I'd go over with you on the phone, and tell you when it's time to call a pro.
Thermostat, breaker, filter, the furnace switch, error lights. The quick checks that fix a lot of no-heat calls.
Heat pumpsHeat pump air feels cooler than a furnace, and defrost cycles are normal. Here's how to tell normal from broken.
Gas furnacesShort cycling is usually airflow, the flame sensor, a pressure switch or the vent. What you can check yourself.
Heat pumpsLight frost is normal. A solid block of ice isn't. Safe steps, and why you should never chip the ice.
SafetyEverybody knows CO is bad. When's the last time your furnace was actually tested? Signs, detectors, and what to do.
Heat pumpsAux is normal on cold mornings. Emergency heat all winter can make your power bill climb fast.
CoolingFilter, breakers, the outdoor unit, frozen lines and the drain. What to check when the AC runs but it's still hot.
TroubleshootingFind the blinking light, count the flashes, read the chart on the door. Common codes in plain English.
Frost Fire Heating & Cooling: $59 diagnostic (waived with repair), same-day service, no weekend surcharge, 4.8-star rated. Licensed & Insured. Serving Raleigh, Durham, the Triangle, Clayton and surrounding areas.