Daikin VRV IV+ E09

[vor91]

Hi i have a problem with vrv 4 system.I have error code E9-49.Resistance on all EEVs are ok.I changed the main pcb on Slave 1 and Slave 2 unit.But no luck.System is working normaly for a few days then the same error appears.E9-49.Power supply is ok,local distributor did measurments and came back ok.
Please help.
Indor units: 11 duct units 3 cassettes
Outdoor units:
RXYQ16U7Y1B master and slave 1 unit
RXYQ12U7Y1B slave 2 unit

[Brian_UK]

Can't help with your problem, sorry but remembered this Daikin manual for useful fault finding, might be useful to you, start at page 130 for E9.

https://www.google.com/url?sa=t&source=web&rct=j&url=https://daikin-airconservice.ru/f/si30-701.pdf&ved=2ahUKEwiDgrX2p8T2AhV2QUEAHQ0xBfsQFnoECCQQAQ&usg=AOvVaw3F1EM6Trv2FIR_zDyj736Q