Midea R290 Troubleshooting Guide (black controller)

Midea R32 Troubleshooting Guide

1. Is the controller on?

• If not, check your fusebox to ensure the breaker is up.
• Also check the red isolator switch next to your outdoor heat pump – this must be switched ON.

2. Is there an error message on the controller?

• 

  Faults usually show on the main screen in the top right .

• On Midea systems, the most common error codes are E0, E7 or E8.
• A full error list is included at the bottom of this guide.

Here is how to access your heat pump error history:

1. Press & Hold < & > simultaneously for 1.5 seconds to unlock the controller

2. Press Menu (three lines on the Left)

3. Navigate to Error History , using the arrows

4. Press the circle button when highlighted

3. Is the water pressure OK?

• The system pressure should be between 1.0 – 1.5 bar.

📹 Video guide here

Topping up system pressure:

1. Locate the filling loop – usually next to your hot water cylinder. It consists of a braided pipe with a black-handled valve on each end.
2. Fully open one black tap so it follows the direction of the pipe.
3. Slowly open the second valve and watch the pressure gauge rise.
4. When the pressure is at 1.0 – 1.5 bar, close both valves.

➡️ If your pressure is already correct, move on to System Reset.

4. Perform a system reset

1. Switch power OFF at the breaker (consumer unit) or the red isolator by the heat pump.
2. Wait 60 seconds.
3. Switch the power back ON.

• Allow the heat pump up to 30 minutes to try running in heating or hot water mode.
• If you still see an E0 error after following the steps above, please email us at support@energize.uk.com.

5. Ensure hot water is active

Sometimes the hot water can be disabled by mistake

• On the controller, check the tank symbol on the right-hand side:
  • If it is grey the hot water is OFF
  • If it is orange the hot water is ON

To activate/deactivate hot water:

1. Long press the Unlock button.
2. Press & Hold < & > simultaneously for 1.5 seconds to unlock the controller
3. press the right button so the hot water tank and temperature is highlighted
4. Press the On/Off button. (far right) so the tank turns orange

Emergency Hot Water

If the system won’t run and you need hot water urgently:

➡️ Follow our Emergency Hot Water Guide to turn on your immersion heater as backup.

7️⃣ Still Not Working?

If your heat pump still won’t operate after these checks:

• Take a photo of the error code and controller screen.
• Note your system pressure.
• Confirm you’ve tried restarting the system.

📩 Send this information to support@energize.uk.com so we can help quickly.

✅ Quick Summary

• Check power supply (fuseboard & isolators).
• Check system pressure (1.0–1.5 bar).
• Reset and note error codes.
• Use immersion heater if urgent.
• Contact support with photos/details if unresolved. support@energize.uk.com

👉 Still having issues? Please contact our support team:

Common Midea Error Codes

• E8: Water flow error
  • Triggered when the system does not detect water flow after the circulation pump activates.
  • This code usually self-resets and can be caused by an air lock.
  • If it appears repeatedly, check system pressure and filters.
  • E0: Water flow error (persistent)
  • Often caused by low pressure or a blocked filter.
  • Will not self-reset – follow the steps above to clear.
• E7: Some units require a software update