PHOENIX METRO HEATING & COOLINGLicensed & Bonded · ROC 363306
Core Comfort service trucks in an Arizona neighborhood

CORE COMFORT HVAC · ARIZONA

Central Heating Repair When the Heat Stops

Diagnosis and repair for central heating — from no heat to short cycling.

When your central heating isn’t working, the cause could be the furnace or heat pump, a thermostat, an igniter, or an airflow issue. We diagnose it and provide pricing before any repair.

Two installed outdoor central air conditioning condensers

What a heating repair visit involves

  • Diagnostic of heating operation
  • Igniter, flame sensor, and gas valve checks (where applicable)
  • Heat pump heating and defrost inspection
  • Airflow, filter, and duct inspection
  • Clear explanation and pricing before work begins
Crane lifting a packaged central HVAC unit onto an Arizona roof

Common heating repair causes

  • A failed igniter or flame sensor
  • Thermostat or wiring problems
  • Heat pump defrost or reversing valve issues
  • Dirty filters restricting airflow
  • Duct leaks or imbalance affecting heat delivery
Technician servicing an outdoor central air conditioner
Core Comfort technician installing an indoor central HVAC air handler

A LITTLE CLARITY BEFORE YOU DECIDE

Frequently Asked Questions

Why is my heater blowing cold air?

Causes include a failed igniter, a flame sensor issue, a thermostat fault, or — for a heat pump — a defrost or reversing valve problem. We diagnose the exact cause.

How fast can you come out?

We offer same-day and emergency service. Call (602) 960-2278 for the earliest availability.

Do you repair both furnaces and heat pumps?

Yes, we repair central heating whether your home uses a furnace, a heat pump, or a dual-fuel setup.

Repair or replace?

For small repairs on newer equipment, repair usually makes sense; for aging systems with major repairs, we explain the options.

How do I schedule?

Call (602) 960-2278, book online, or use our Contact page.

Heat Not Working?

Call for same-day service, or send the symptoms through our Contact page.

Installed central HVAC air handler beside a water heater

Prefer to talk? Call (602) 960-2278.

Call Core ComfortSchedule consultation