AC Works But Not Heat? Common Spring HVAC Problems in Oklahoma City

If your AC works but not heat, you’re not alone.

This is one of the most common spring service calls in Oklahoma City.

Searches like:

• heat not working Oklahoma City
• heat doesn’t work but AC does
• air conditioner works but heater does not
• AC works but not heat in house

Spike every March.

Here’s why.

1. Thermostat Mode Error

Many homeowners forget to switch the thermostat from cooling to heating mode.

It sounds simple — but it accounts for a large number of home heating repair OKC calls.

2. Heat Pump Reversing Valve Failure

Heat pumps switch direction between heating and cooling.

If the reversing valve fails, your AC runs — but no heat.

This requires professional heat pump repair Oklahoma City service.

3. Ignition or Gas Supply Issues

If you have a gas furnace, ignition components may fail after sitting unused.

This is common during spring transitions and requires heater repair Oklahoma City.

4. Electrical Failures

Blown control boards, tripped breakers, or wiring issues can cause partial system failure.

If your heater and AC not working in house, shut off the system and call for heating and cooling repair Oklahoma City.

Repair or Replace?

If your system is older than 15 years and experiencing repeated issues, it may be time for furnace replacement OKC or heat pump upgrade.

Direct Air & Heat diagnoses the issue first — then provides clear options.

Don’t ignore inconsistent heating during spring. Oklahoma weather flips fast.

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