Daikin Mini-Split E11 Error Code: Dual Compressor Fault
Quick Answer
Daikin E11 is exclusive to multi-compressor outdoor units - typically 3-ton and larger capacity systems that use two compressors working in tandem for capacity modulation. E11 triggers when the inverter board detects a mismatch between the two compressors: one running while the other is not, unequal current draw between them, or a communication fault between the compressor control circuits.
Daikin E11 is exclusive to multi-compressor outdoor units - typically 3-ton and larger capacity systems that use two compressors working in tandem for capacity modulation. E11 triggers when the inverter board detects a mismatch between the two compressors: one running while the other is not, unequal current draw between them, or a communication fault between the compressor control circuits. This is a Daikin-specific code because Daikin's multi-compressor strategy differs from Mitsubishi's single large inverter compressor approach. The most common cause is one compressor failing while the other continues to operate, creating the detected mismatch.
What Does the E11 Code Mean?
E11 means a mismatch between dual compressors on larger Daikin systems. One compressor may have failed while the other is running normally.
Most Likely Causes
Based on aggregated repair data, here is the probability breakdown for this error code:
Symptoms You May Notice
- E11 on indoor display
- Reduced capacity - system cools/heats but not enough
- One side of outdoor unit vibrating while other is quiet
- Higher than normal electricity consumption
- Outdoor unit louder than usual on one side
Can you reset a Daikin minisplit to clear the E11 code?
Turn breaker off for 60 seconds. E11 clears when both compressors operate within normal parameters. This code almost always requires professional repair.
Tools Required for Diagnosis
Diagnostic Checklist
Follow these steps in order. We start with the easiest external fixes before opening up the machine.
Turn off breaker
Turn off breaker. At the outdoor unit, identify the two compressor terminals. With power restored, use a clamp ammeter on each compressor's power lead while the system runs. Both should draw similar amperage. If one reads zero or significantly lower, that compressor has failed.
For the non-running compressor
After replacing the failed component
Replacement Parts
If your diagnostic testing proves the component has failed, you will need a replacement. We recommend OEM parts over aftermarket for water-handling components.
| Part Name | OEM Number | Estimated Price |
|---|---|---|
| Daikin Scroll CompressorModel-specific · $1000–$2500 | Model-specific | $1000 – $2500 |
| Daikin Outdoor Inverter BoardModel-specific · $400–$800 | Model-specific | $400 – $800 |
Repair vs. Replace Calculator
Frequently Asked Questions
Does E11 mean both compressors are bad?
Can the system run on one compressor?
How much does E11 repair cost?
Related Daikin Minisplit Error Codes
Models Known to Experience E11 Errors
This repair applies to most Daikin minisplits with this error code. Common model numbers include:
RXL24QMVJU, RXL36UMVJU, RMXS48LVJU
Last verified for technical accuracy on March 15, 2026