2VV HRV All models error codes
Codes
- J3EError codeLow bus voltage fault
- J5EError codeMotor startup failure
- J31Error codeHigh bus voltage fault
- J43Error codePhase current sample bias error
- J45Error codeMotor and indoor unit are unmatched
- J52Error codeMotor blocking protection
- J55Error codeSpeed control mode setting error Phase lack protection of motor
- M1MError code1. Any topology connection of communication wiring. 2. Two-core and non-polar communication for M1M2
- m3Error codeFrequency (Hz)
- RS-485Error code1. The communication cables must be connected in serial. 2. PQE cables must be 3-core and PQ non-polar