Drain trouble — RUN LED flashes 8 times, TIMER LED flashes 4 times

What does 84 mean?

There is an issue with the condensate drain system, detected by the float switch being open continuously for 3 seconds or a disconnected float switch connector/wire.

• Defective drain pump (DM) or broken drain pump wire
• Anomalous float switch operation or disconnected float switch connector/wire
• Blocked drain hose or pan overflow
• Defective indoor PCB

Click steps to track your progress.

1. 1

   Turn off the main power to the unit.

2. 2

   Check the indoor unit's drain pan for water overflow and clear any visible blockages in the drain hose.

3. 3

   Inspect the float switch for proper operation and ensure its connector and wire are securely attached.

4. 4

   Verify the drain pump (if your unit has one) is functioning correctly and its wires are not broken or loose.

5. 5

   Clean the drain pan and ensure free flow of condensate away from the unit.