Goodman HVAC, 2-3 years old, split unit.

It was unseasonably cold yesterday, we turned on the heat, it just blew cold air.

Today was warmer, the AC never blew any air.

Error code “Ec”.

Tried turning off power at breaker box for 15 minutes, and the error code remains.

Question from user ChefWetBeard at hvacadvice at reddit.

Answer:

If your Goodman HVAC unit is only 2-3 years old and you're experiencing issues with both the heating and cooling modes, as well as an error code "Ec," there might be a problem with the system that requires professional assistance. Here are a few possible explanations for the issues you're encountering:

1. Thermostat settings: Double-check that the thermostat is set to the correct mode (heat or cool) and that the temperature is set to a level that should trigger the HVAC system to turn on.

2. Malfunctioning components: It's possible that certain components within the HVAC system have malfunctioned, such as the compressor or the fan. This could result in the system not producing hot or cold air.

3. Electrical issues: The error code "Ec" could indicate an electrical problem within the HVAC system. This might require the expertise of a technician to diagnose and resolve.

4. Sensor or control board malfunction: Faulty sensors or a malfunctioning control board can cause erratic behavior in the HVAC system, leading to issues with heating and cooling.

Given that you've already attempted a power reset without success, it's advisable to contact a licensed HVAC professional to inspect and diagnose the issue further. They will have the necessary expertise and tools to troubleshoot the problem effectively and recommend the appropriate solution.

any diy solution to this ac problem