Error 185 — Cross wiring error between communication and power cable of indoor unit

What does 185 mean?

The communication and power cables for an indoor unit have been incorrectly wired, meaning they are swapped or interconnected. This can cause communication failure and potential electrical damage.

• Installation error during wiring
• Mislabeled wires or terminals
• Accidental connection of incorrect cables

Click steps to track your progress.

1. 1

   Immediately turn off power to the indoor unit and the entire HVAC system at the circuit breaker.

2. 2

   CAUTION: This requires professional electrical expertise. Carefully inspect the wiring connections to the indoor unit to identify any cross-wired cables.

3. 3

   Correctly connect the communication and power cables according to the wiring diagram in the Samsung unit's manual.

4. 4

   Ensure all connections are secure and properly insulated.

5. 5

   Restore power and check for proper operation. If you are not comfortable with electrical wiring, contact a certified HVAC technician or electrician.