Remote Controller Check; Troubleshooting; How To Handle Problems With The Test Run - Mitsubishi Electric PRH-P200MYA Para El Instalador

12.4. Remote controller check

If operation cannot be carried out from the remote controller, use this function to diagnose the remote controller.
1 First check the power mark.
When normal voltage (DC12V) is not applied to the remote controller, the power
mark goes off.
When the power mark is off, check the remote controller wiring and the indoor
unit.
2 Switch to the remote controller check mode.
When the H [CHECK] button is held down for five seconds or longer, the dis-
play shown below appears.
3 Remote controller check result
When remote controller is normal
Since there is no problem at the remote controller, check for other causes.
When the problem is other than the checked remote controller
(Error code 2) "E3" "6833" "6832" flash → Cannot send
There is noise on the transmission line, or the indoor unit or another remote con-
troller is faulty. Check the transmission line and the other remote controllers.
4 Remote controller check reset
When the H [CHECK] button is held down for five seconds or longer, remote controller check resets and the "PLEASE WAIT" and RUN lamp flash. Approximately 30
seconds later, the remote controller returns to the state before remote controller check.

13. Troubleshooting

13.1. How to handle problems with the test run

Error code list: details
Remote controller
MELANS display
display
E0 6831,6834
E1, E2 6201,6202
E3 6832,6833
E4 6831,6834
E5 6832,6833
E6 6740,6843
E7 6841,6842
E8 6840,6843
E9 6841,6842
EA 6844
EB 6845
EC 6846
ED 0403
EE
0403
F1 4103
F8 4115
A0 6600
A2 6602
A3 6603
A6 6606
A7 6607
A8 6608
EF undefined
U2 1102
U2 1108
U3 5104
U4 5105
U6 4101
ERROR CODE
Remote controller communication – reception error
Remote controller board error
Remote controller communication – transmission error
Remote controller communication – reception error
Remote controller communication – transmission error
Communication between indoor-side and outdoor-side controller boards – reception error
Communication between indoor-side and outdoor-side controller boards – transmission error
Communication between indoor-side and outdoor-side controller boards – reception error
Communication between indoor-side and outdoor-side controller boards – transmission error
Connection wiring error (interference, loose)
Connection wiring error (interference, loose)
Excessive time in use
Serial communication error
Serial communication error
Reverse phase, out of phase verification
Faulty input circuit
Duplicated M-NET address setting
M-NET error in PH/W transmission
M-NET bus busy
M-NET communication error with P transmission
M-NET error – no ACK
M-NET error – no response
Undefined error code
Discharge temperature error
CN23 Short-circuit Connector Unplugged
Open/short in discharge temp thermistor
Open/short in liquid temp or condenser/evaporater temp thermistor
Compressor overcurrent interruption (51C operation)
Power mark
When the A [FILTER] button is pressed, remote controller check begins.
When remote controller is faulty
(Error display 1) "NG" flashes → Remote controller send/receive circuit abnormal
Remote controller switching is necessary.
(Error display 3) "ERC" and data error count are displayed → Data error generation
"Data error count" is the difference between the number of bits of remote controller
send data and the number of bits actually sent to the transmission line. In this case,
the send data was disturbed by the noise, etc. Check the transmission line.
When data error count is 02
Remote controller send data
Send data on transmission line
Error details Problem location
Remote Controller
Remote Controller
Remote Controller
Indoor-side controller board
Indoor-side controller board
Indoor-side controller board
Indoor-side controller board
Outdoor-side controller board
Outdoor-side controller board
Outdoor-side controller board
Outdoor-side controller board
Outdoor-side controller board
Outdoor-side controller board
M-NET board
Outdoor-side controller board
Outdoor-side controller board
M-NET board
M-NET board
M-NET board
M-NET board
M-NET board
M-NET board
–
Outdoor-side controller board
Outdoor-side controller board
Outdoor-side controller board
Outdoor-side controller board
Outdoor-side controller board
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