Mitsubishi Heavy Industries SRK25GZ-L1 Handbook page 1073

3) Display sequence of error, inspection display lamp
a) One kind error
Display corresponding to the error is shown.
b) More than one errors.
Section
Error code of remote controller
Inspection LED(red) of indoor unit
PCB
Inspection LED (red) of outdoor unit
PCB
c) Timing of error detection
• Indoor unit side.
Error detail
Transmission error of remote controller
indoor unit
CPU is out of control
Transmission error between
indoor/outdoor units
Broken wire of heat exchanger
thermistor
Broken wire of indoor unit return air
thermistor
Drain error(float switch motion)
• Displays the error of higher prority (When plural errors are persisting.)
• Displays the present errors.
(When a new error has occurred after the former error was reset.)
Error code
When the transmission error continuously for 2 min.
Resetting was performed at the rate of 1 time per second. An abnormal
stop occurred 120 times running.
A check was made once every 20 second. An abnormal stop occurred 7
time running.
After a compressor ON command, this failure was detected for 5 second
in the period of 2 minutes to 2 minutes and 20 seconds.
This failure was detected continuously for 5 seconds.
At the thermostat ON state, an abnormal stop occurred immediately after
the float switch operated.
- At a stop or the thermostat OFF state, the condensate motor was turned
on for 3 minutes after the float switch operated.
After that, an abnormal stop occurred when the float switch operated in
10 seconds.
Display section
• • • • • •
Timing of error detection
FDC-HKXR
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