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Installation & Operation Manual -
VFH-MB 09/12/18/24 Series
3
5
4. E6 Malfunction
Did this e
liminate the
malfunction
?
End
Communication malfunction of some
indoor units
De-energize,check
if
the
connection
wire of indoor and outdoor unit and
the wire of the eletric box is
connected correctly
no
no
no
Connected correctly
Reconnect according to
the wiring diagram
yes
yes
yes
De-energize, change the communication wire of the
well-communicated indoor unit and malfunction
ing
indoor unit,
then energize the unit and wait for 3min
The malfunction
ing
indoor unit
resumes normal
operation
Replace outdoor
mainboard
Replace the main
board of the
malfunction
ing
indoor unit
Summary of Contents for B-VFH18MB-1
Page 39: ...Installation Operation Manual VFH MB 09 12 18 24 Series 39 Exploded View Model B VFH12MB 1...
Page 41: ...Installation Operation Manual VFH MB 09 12 18 24 Series 41 Exploded View Model B VFH18MB 1...
Page 43: ...Installation Operation Manual VFH MB 09 12 18 24 Series 43 Exploded View Model B VFH24MB 1...