Daikin Air Conditioning Fault Codes Explained Infographic.From time to time, your air conditioning unit may encounter a fault, which can be difficult to diagnose without proper information. To help you find out what the cause of any potential issue could be, we’ve compiled a list of Daikin air conditioning fault codes and their descriptions.
Daikin Ac Error Code E3
High pressure switches on VRV systems are 240v normally closed under normal conditions. This is the first thing to check. If the system is VRV III, then a nanual rest is required. To do this, simply stop the operation of all indoor units by remote/centralised controller, then press the return button once on the outdoor unit main pcb. LED H2P on the bank of seven will then go out and the system will be locked out for a period of around 10 seconds, then the system will be able to be re-started.
Daikin Error Codes E3 And F3
Daikin Error Codes List
This was added to the software of VRV III systems. Powering off the outdoor unit will also reset the problem, but only if all indoor units are stooped. Hope this helps, let me know how you get on.