Installing REYQ16M81B With FXFQ- ( 5,6.3,8)- M7V1B total of 5 cassettes with 5 BS100 boxes
Second-hand unit fitted in charity office history not known came with 10 bs boxex and cassettes
All indoor units are on same phase and out door L1L2L3 is clock wise
It came on with one cassette not working bs f2 cable was out after connecting unit showing H4 and
H2P FLASHING H3P ON
Can any body help and Is there any way to reset the unit to factory