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General| Brand | Daikin |
|---|---|
| Model | FHC21NUV1 |
| Category | Air Conditioner |
| Language | English |
Details potential causes and troubleshooting steps for units failing to start or operate.
Addresses fan operation without compressor engagement, identifying possible causes and solutions.
Troubleshoots intermittent operation where the system stops shortly after startup.
Diagnoses issues preventing the unit from restarting after a shutdown period.
Identifies causes and solutions when the unit operates but fails to deliver cooling.
Addresses issues where the unit operates but fails to provide heating.
Explains how to use the remote controller's self-diagnosis function for error identification.
Lists error codes, their descriptions, applicable models, and reference pages for quick lookup.
Offers in-depth explanations and diagnostic steps for specific error codes.
Explains the A0 error code and its relation to external protection device activation.
Addresses the A1 error code, indicating potential issues with the indoor unit PCB.
Covers the A3 error code, focusing on drain water level and float switch issues.
Details the A6 error code related to indoor unit fan motor issues.
Describes the A9 error code concerning abnormalities in the electronic expansion valve coil.
Explains the AJ error code related to incorrect capacity settings or adaptor issues.
Addresses C1 errors indicating transmission issues between indoor unit PCB and fan PCB.
Details C4, C5, and C9 error codes related to thermistor malfunctions.
Explains the E0 error code related to the actuation of safety devices.
Covers E1 errors indicating abnormalities in the outdoor unit PCB.
Details E3 errors related to high pressure system abnormalities.
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