Mitsubishi Electric FRESH MASTER GUF-50RD4 Handbook page 17

Error code Error content
6831 MA remote control-
6832 ler communication
6833 error
6834
7101 Capacity code set-
ting error
7106 Remote controller
setting error
Booting system
HO
Unable to register
-
Operation display
comes up with the
Remote controller,
-
however it turns off
immediately.
Cause
Contact failure of the MA remote con-
troller transmission cable
The voltage/signal in the MA remote
controller transmission cable drops.
A signal was changed due to noise in
the MA remote controller transmission
cable.
Failure in the transmit/receive circuit for
the MA remote control of the MA remote
controller or Fresh Master
Capacity code setting of Fresh Master
is wrong.
The MA Remote controller was con-
nected with the switch (SW3-1) OFF.
Have 10 minutes passed since system
boot-up?
Has group registration been made?
Has the Fresh Master address been
changed?
When no problem is found after check-
ing the above items.
Fresh Master which is linked with in-
door units, cannot be group registered
other than the interlock setting with the
Remote controller.
Main power is not supplied to Fresh
Master.
Check the transmission cable for discon-
nection or looseness.
Check the transmission cable if the length
is beyond the range of the wiring regulation
Inspect noise in the transmission signal.
If no problem is found after checking the
above items, it is a malfunction of the MA
remote controller or Fresh Master.
Check the capacity code setting switches
(SW2-1 to SW2-6).
When the MA remote controller is directly
connected to Fresh Master, switch (SW3-
1) must be ON.
After system boot-up, HO may flash for a
maximum of 10 minutes. However, this is
not a malfunction.
Conduct group registration. If there is a
master system controller such as the cen-
tral controller, use the controller to conduct
group registration.
If the Fresh Master main unit address has
been changed, conduct the group registra-
tion again.
If HO continues to flash for more than 10
minutes after reregistering the group and
rebooting, replace the circuit board.
Change the setting of the switch (SW3-1)
and reset the registration or register it as
interlocked.
Supply Main Power.
─ 17 ─
Remedy