Booking today · Houston arrival windows 9–12 · 1–4 · 4–7 Independent Frigidaire specialists · Licensed & insured Mon–Fri 7:00 AM - 8:00 PM · Sat 8:00 AM - 6:00 PM
(713) 844-8518 Schedule a Repair
Error code · Room Air Conditioner

Frigidaire Room Air Conditioner Code EC: Communications Error on the Control

EC on a Frigidaire room air conditioner with a digital display, whether window, wall or portable, is a communications error. The unit's control has lost contact with another part of its own electronics, so commands and…

Medium · inspection needed
Schedule a Repair(713) 844-8518
Code
EC
Appliance
Room Air Conditioner
Brand
Frigidaire
Warranty
30-day workmanship

What EC means

EC on a Frigidaire room air conditioner with a digital display, whether window, wall or portable, is a communications error. The unit's control has lost contact with another part of its own electronics, so commands and status are no longer passing through properly. You will see EC on the display and the unit may refuse button presses, stop cooling or shut off. The code names the problem as communication, not a specific part.

Common causes of EC

  • The wire connections between the display and the main control
  • The display board
  • The main control board
✓ One safe check you can try

1. Unplug the air conditioner for about 30 seconds. 2. Plug it back in and turn it on. 3. Check that the power cord and plug are fully seated and not warm or damaged. 4. If EC returns, stop using the unit and call us.

! Why to stop there
  • EC does not say which board or connection stopped talking, so we have to test to find out.
  • We start with the connections and move to the boards only if the connections are sound.
  • If the unit is older and a board would cost more than the unit is worth, we will say so up front.
Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.
→Same appliance

Other Room Air Conditioner codes

P1Frigidaire Room Air Conditioner Code P1: Water in the Drain Tray F2Frigidaire Room Air Conditioner Code F2: Waiting for the Coil to Defrost Filter Reset lightFrigidaire Room Air Conditioner Filter Reset Light: Cleaning Reminder at 250 Hours HSFrigidaire Room Air Conditioner Code HS: Discharge or Heater Sensor LCFrigidaire Split Air Conditioner Code LC: Indoor and Outdoor Link ASFrigidaire Room Air Conditioner Code AS: Room Temperature Sensor E4Frigidaire Portable Air Conditioner Code E4: Display and Main Board Link Lost ESFrigidaire Room Air Conditioner Code ES: Coil Sensor Reading Is Missing
ECEC questions
What does EC mean on my air conditioner?

It means the electronics inside the unit are not communicating properly. The control cannot reliably send or receive instructions, so the unit may not respond or cool.

Does a power reset fix EC?

It can if the problem was a one-time glitch. If EC comes back after you unplug the unit for 30 seconds, the communication path has a lasting problem and needs to be tested.

Do you service window and wall units too?

Yes. We repair window, wall and portable room air conditioners, and we give you a written price before we start any work. We fix window and wall units as well as portable ones.

Book a visit

Still seeing EC?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 844-8518
☎ Call our office ▤ Schedule a Repair