Daikin Air Conditioner Error E5
⚡ Quick Answer: The Daikin Air Conditioner E5 error indicates a communication failure between the indoor and outdoor units, leading to a blinking display and loss of ... ✅ DIY Fixable
What Does Error E5 Mean?
The Daikin Air Conditioner E5 error indicates a communication failure between the indoor and outdoor units, leading to a blinking display and loss of cooling. This error is often caused by compressor overload or overcurrent, insufficient pressure equalization during startup, or issues with the inverter or control board. Immediate attention is needed to restore functionality, as the outdoor unit will cease operation until the underlying issue is resolved.
Common Symptoms:
- é‹è»¢ä¸E5‰è¡¨ç¤ºŸ—点滅
- 室外機Œåœæ¢—†·æš–房ŒåŠ¹‹„
- 圧縮機Œå‹•ä½œ—„
Possible Causes
- 圧縮機Žé›»æµŽè² 跌検出•ŒŸ (high)
- 圧縮機起動時˜ä½Žåœ§å‡åœ§ä¸è¶³„冷媒æµè·¯é–‰å¡ž (medium)
- Ÿºæ¿ï¼åˆ¶å¾¡åŸºæ¿…·åˆ (medium)
How to Fix Error E5
DIY Fix 基本的†èµ·å‹•
- ‹è»¢’åœæ¢™‹
- 専用–Ÿ—’切Š„1分間待
- å†åº¦é›»æº’å…¥Œ‹è»¢’試™
Technician Only 圧縮機Šˆˆ¶å¾¡ç³»–†
- 室外機œ§ç¸®æ©Ÿé›»æµ‹•ä½œçŠ¶æ…‹’測定
- 高低圧崜§åŠ›†·åª’æµè·¯ï¼ˆé–‰éŽ–å¼å«‰’点検
- Ÿºæ¿–¢é€£é…ç·š’検査
- 必覜˜œ§ç¸®æ©ŸŸŸºæ¿’交æ›
Parts needed: 圧縮機, Ÿºæ¿, 高圧Žåœ§, é…管系部å“
- E5表示Œå†ç™º™‹å ´åˆ
- 異音Žç†±›»æºé®æ–ŒåŒæ™‚™ºç”Ÿ™‹å ´åˆ
- 基本的†èµ·å‹•”¹å–„—„å ´åˆ
Next step
Choose the next step for E5
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Browse by model — no specific failed part is claimed
Model-compatible Air Conditioner parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Search results are not a diagnosis. Verify both the complete appliance model and the retailer's fit information before ordering.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Air Conditioner Fin Cleaner
For routine cleaning of accessible coil fins when permitted by the manufacturer. Disconnect power and follow product and appliance instructions.
Model-Compatible Washable AC Filter
A reusable filter option only where the appliance supports one. Match the full model, dimensions, and filter specification.
Compatibility check required: use the complete appliance model and compare the existing filter, bag, or specification before ordering.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| wattage | |
|---|---|
| component | Communication Control Board |
| resistance | |
| part_number | |
| voltage_rating | 220V AC |
Common Questions
What does E5 error mean on Daikin Air Conditioner?
E5 error indicates a communication failure causing a blinking display and no cooling.
Can I fix Daikin Air Conditioner E5 error myself?
Yes, restart the AC by turning it off, cutting power for a minute, then turning it back on.
How much does it cost to fix E5 error?
Repair costs range from ¥30,000 to ¥150,000 depending on the parts needed.
When should I call a technician for E5?
Call a technician if E5 recurs, if there are unusual noises or overheating, or if restarting doesn't help.
Data last verified: 2026-07-22
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