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Mitsubishi Electric PURY-RP200 Service Handbook page 206

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[ IX Troubleshooting ]
1. Error Code
6607
No ACK error
2. Error definition and error detection method
The error is detected when no acknowledgement (ACK signal) is received after the transmission. (eg. When the data is trans-
mitted six times in a row with 30 seconds interval, the error is detected on the transmission side.)
The address/attribute appeared on the display on the remote controller indicates the controller which did not provide
the response (ACK).
3. System configuration
(3) System connected to the system controllers (MELANS)
Error
source
Error display
address
ME re-
ME remote
mote con-
controller (RC)
troller
System con-
(RC)
troller (SC)
MA remote
controller (MA)
System con-
troller
(SC)
HWE10020
Detection
method
No acknowl-
Same as grouping of units in a sys-
edgement
tem with multiple outdoor units
(ACK) at IC
transmission to
RC
No acknowl-
1.
Error occurrence on some IC
edgement
(1) Same cause as that for system
(ACK) at
with one outdoor unit
MELANS
transmission to
2.
Error occurrence on all IC in the
RC
system with one outdoor unit
(1) An error is found by the outdoor
unit.
Total capacity error (7100)
Capacity code error (7101)
Error in the number of connected
units (7102)
Address setting error (7105)
(2) Disconnection or short circuit of the
transmission line for the outdoor
unit on the terminal block for cen-
tralized control line connection
(TB7)
(3) Turn off the power source of the
outdoor unit
(4) Malfunction of electrical system for
the outdoor unit
3.
Error occurrence on all IC
(1) Same causes as (1) - (4) described
in 2.
(2) When the power supply unit for
transmission lines is used and the
male power supply connector is
connected to the female power
supply switch connector (CN40) for
the transmission line for central-
ized control
(3) Disconnection or shutdown of the
power source of the power supply
unit for transmission line
(4) System controller (MELANS) mal-
function
- 197 -
Cause
1)
2)
Check method and remedy
Same remedy as that for
grouping of units in a system
with multiple outdoor units
Same remedy as that for
system with one outdoor unit
Check the LED display for
troubleshooting on the out-
door unit.
If an error is found, check
the check code definition,
and correct the error.
If no error is found, check
the cause 2).
Check (2) - (4) on the left.
Check (1) - (4) on the left.
GB
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