Hitachi air conditioner error codes

Hitachi air conditioner error codes

Being a part of the DKB Group, Hitachi in its own turn, is a parent company of the Hitachi Group. The Japanese conglomerate company produces goods in more than ten segments, from electronics and information systems to railway and automotive systems. It is listed in the Forbes rankings of the world’s most influential companies on a regular basis.
Sometimes, error codes can give you enough information to fix your Hitachi air conditioner on your own. However, in most cases the help of a service engineer is indispensible. Anyway, the fault code will help you to find out what the problem is and decide whether you can deal with it on your own. The table below contains the error codes for Hitachi air conditioning systems, explained in all details.

Hitachi 01 fault code

Hitachi 01 fault code

If there is a 01 fault code, your AC’s protection system has tripped.

This can happen due to a motor issue, drain problems, relay or PCB failure.

Motor issues occur when motors are run for too long. This can cause the wiring to heat up, the insulation to melt, and result in a “short.”

Finally, the current will start “cutting corners”, and the wiring will be taking more electrical load than it can handle. This will cause further heating and melting of the wiring and pose a danger of fire.

The 01 error code signals the tripping of the protection system, which happens when the process described above begins to take place.

Hitachi e8 error code

Hitachi e8 error code

E8 appears when the indoor unit fan motor fails, which can have tons of possible causes. In some cases, it is possible to fix it at home; other cases require professional help.

First, you can try to reset it. Turn it off, wait 10 minutes or so, then turn it on again. Sometimes it works. If the system stopped during operation due to a power surge, turn it off, wait a couple of hours (it should cool down) and turn it back on.

If the error is still there, check the wiring inside the indoor unit. Be sure they are connected properly and not damaged. Check the impeller and be sure it is not blocked by any foreign objects or debris. Turn it by hand and make sure it spins well. Turn on the unit. If the problem has not gone, call your local technical service provider.

Hitachi p7 fault code

Hitachi air conditioning fault code p7

The P7 code appears when there is a sensor or PCB issue, when they are not reading correctly. Some users say it may occur when the system is low on refrigerant (please, see refrigerant type).

This error code requires a deeper insight into the system and professional advice, because it can be caused by different things. First, you can try resetting your system by simply turning it off for a little while and then turning it back on. If the error appears again, consult a qualified Hitachi service professional.