E1 Remote Controller Communication Circuit Error - Mitsubishi Electric FDF100VSXVD Technical Manual

Error code
E1
Remote controller:
1. Applicable model
All models
2. Error detection method
When normal communication
between the remote controller
and the indoor unit is
interrupted for more than 2
minutes. (Detectable only with
the remote controller)
3. Condition of Error displayed
Same as above
4. Presumable cause
• Defective communication
circuit between remote
controller-indoor unit
• Noise
• Defective remote controller
• Faulty indoor control PCB
Note:
If the indoor unit cannot communicate normally with the remote controller for 180 seconds, the indoor unit PCB starts to
reset automatically.
L E D G r een Red
Stays OFF
Indoor
Stays OFF
Outdoor
5. Troubleshooting
Diagnosis
Is it possible to
reset normally by the
power reset?
Turn SW7-1 to OFF.
Remove the wire connecting
between indoor/outdoor units.
Power reset
Does the drain
pump restart automatically
1 minute later?
Note (2) Does the remote controller still display "
after 3 minutes?
- 163
Content
Remote controller
communication circuit error
YES
NO
ON
YES
NO
WAIT
" even
-
'11 • PAC-T-160
Countermeasure
Malfunction by noise
Check peripheral
environment.
Defective indoor control
PCB Replace.
Defective remote controller
Replace.