Mitsubishi Electric PUMY-P200YKM2 Technical & Service Manual page 84

Check code
6832(E3/E5)
6833(E3/E5)
Abnormal points and detection methods
Detected in remote controller or indoor unit.
●Diagnosis of defects
Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards
Disconnect and reconnect the
connector CN3A, then turn the
power back ON.
Is the check code
<6832> or <6833> still
displayed?
Yes
Check the remote controller for
main-sub setting.
Is there only 1 remote controller
set as the main controller?
Yes
Conduct the Remote Controller
Diagnosis more than 2 times.
Is "RC OK" displayed on
all remote controllers?
Yes
Turn the power back ON
Does "HO"or "Please
wait" disappear within
6 minutes?
Yes
Continue to the next page.
OCH675D
MA communication send error
Diagnosis
No
No
Note:
It takes 6 seconds at maximum
until the result is displayed.
No
Is "RC NG"
Yes
displayed?
No
Is "RC 6832" or
"ERC01"–"ERC66"
displayed?
No
No
Causes and checkpoints
There are 2 remote controllers set as main.
Malfunction of remote controller sending/receiving
circuit
Malfunction of sending/receiving circuit on indoor
controller board
Remote controller transmitting error caused by noise
interference
No abnormality
A connector or wiring contact failure is
suspected.
Set one remote controller to main remote
controller, and the other to sub.
No abnormality
It might be caused by an external noise, so
Yes
check the transmission line.
Replace the remote controller.
Replace the indoor controller board with
the LED2 is blinking.
84
Chart 1 of 2
Remedy