Error code wizard offers information on the cause of the malfunction and the status of your air conditioner by entering the error code.


1. This page provides a simple explanation concerning content relating to error codes and their possible causes. Please note that the content may slightly differ depending on models.
2. This page is intended for dealers with experience in repairing Tosot air conditioners and is not for end users.
3. Tosot assumes no responsibility for any accidents or troubles caused in the disassembly or repair of equipment performed according to information on this page.


Be sure to follow the instructions.

If molded case circuit breakers or earth leakage circuit breakers have tripped, do not reset the breaker immediately without first checking for any problems with insulation of equipment.
Resetting breakers without a check of insulation may cause damage to equipment.