Mitsubishi Heavy Industries SRK20ZJ-S Service Manual

-
90
-
'10 • SCM-SM-094
Error code
Remote controller:
LED Green Red
Indoor
Content
E1
Remote controller
communication circuit error
Keeps flashing Stays OFF
Outdoor
– Stays OFF
1. Applicable model
5. Troubleshooting
All models
Diagnosis Countermeasure
Is it possible to
reset normally by the
power reset?
Does the drain
pump restart automatically
1 minute later?
Turn SW7-1 to OFF.  ON
Remove the wire  connecting
between indoor/outdoor units.
YES
YES
NO
Note (2) Does the remote controller still display “ ” even
after 3 minutes?
Power reset
NO
WAIT
Malfunction by noise
Check peripheral
environment.
Defective indoor control
PCB
ª
Replace.
Defective remote controller
ª
Replace.
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 contnrol PCB starts
to reset automatically.

Mitsubishi Heavy Industries SRK20ZJ-S Specifications

General

Brand	Mitsubishi Heavy Industries
Model	SRK20ZJ-S
Category	Air Conditioner
Language	English