E14 - 3 flashes - Master/slave system wiring or SW settings error

What does E14 mean?

This error, often indicated by 3 flashes, points to an incorrect setting of DIP switches (SWS) on the indoor unit PCB, or a wiring issue in a master/slave system.

• Incorrect DIP switch (SWS) settings on the indoor unit PCB for master/slave configuration.
• Incorrect control wiring between the master and slave units.
• An open circuit in the control wiring between master and slave units.

Click steps to track your progress.

1. 1

   Turn off the main power to the entire AC system at the circuit breaker.

2. 2

   Consult the installation manual to verify the correct DIP switch (SWS) settings on the indoor unit PCB for your master/slave setup.

3. 3

   Have a qualified technician inspect the control wiring between the master and slave units for proper connection and integrity.

4. 4

   Ensure all wires are securely connected and free from damage.

5. 5

   Restore power after verifying settings and wiring.