Red status lamp blinking — Potential communication issue with heat pump

Was bedeutet Red status lamp intermittent ?

While not explicitly defined as blinking, a red status lamp indicates a malfunction. Intermittent red light could suggest a communication problem between the control module and the heat pump.

• Loose or incorrect wiring between SMO 20 and heat pump
• Faulty heat pump connection
• Software incompatibility

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Check the electrical connections between the SMO 20 (terminals X2:19, X2:20, X2:21) and the heat pump are secure and correctly wired.

2. 2

   Verify that the heat pump's software version is compatible with the SMO 20, referring to page 11 for details.

3. 3

   Ensure the heat pump is correctly installed and powered.

4. 4

   Attempt to reset the alarm on the SMO 20 display.

5. 5

   Consult the heat pump's manual for specific troubleshooting related to its communication.