
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.

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

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

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.

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

