Mitsubishi Electric PUHY-P200 Service Handbook page 159

4. List of code on the LED monitor
LED monitor display
The following abbreviations are used in this table. IC : Indoor unit, OC : Outdoor unit
SW1
No.
Item
1234567890
0 0000000000 Relay output display 1
(lighting to display)
Check display 1
OC error
Check display 2
1 1000000000
OC preliminary error
2 0100000000 Check code 3
(including IC and BC)
3 1100000000 Relay output
display 2
Relay output
4 0010000000
display 3
5 1010000000 Relay output
display 4
6 0110000000
Special operation
7 1110000000
8 0001000000
Communication
9 1001000000
demand capacity
10 0101000000 Contact demand
capacity
11 1101000000 External signal
[signal during input]
12 0011000000
13 1011000000
Outdoor unit
14 0111000000
operation display
15 1111000000
16 0000100000 Indoor unit check
17 1000100000
18 0100100000
19 1100100000
20 0010100000
21 1010100000
22 0110100000
23 1110100000
Indoor unit operation
mode
24 0001100000
25 1001100000
26 0101100000
27 1101100000
28 0011100000
29 1011100000
LD1 LD2 LD3
Comp Comp 1 Comp 2
operation operation operation
(Address and error code reversed)
(Address and error code reversed)
(Address and error code reversed)
21S4a 21S4b 21S4c
SV1 SV3
SV5b SV5c
Retry Temporary
operation operation
Contact Night Snow Cooling and
demand mode sensor
Warm up 3 minutes Compressor
mode restart operation
protection
mode
Unit No.1 Unit No.2 Unit No.3 Unit No.4 Unit No.5
Unit No.9 Unit No.10 Unit No.11 Unit No.12 Unit No.13 Unit No.14 Unit No.15 Unit No.16
Unit No.17 Unit No.18 Unit No.19 Unit No.20 Unit No.21 Unit No.22 Unit No.23 Unit No.24
Unit No.25 Unit No.26 Unit No.27 Unit No.28 Unit No.29 Unit No.30 Unit No.31 Unit No.32
Unit No.1 Unit No.2 Unit No.3 Unit No.4 Unit No.5
Unit No.9 Unit No.10 Unit No.11 Unit No.12 Unit No.13 Unit No.14 Unit No.15 Unit No.16
Unit No.17 Unit No.18 Unit No.19 Unit No.20 Unit No.21 Unit No.22 Unit No.23 Unit No.24
Unit No.25 Unit No.26 Unit No.27 Unit No.28 Unit No.29 Unit No.30 Unit No.31 Unit No.32
- 157 -
LED
LD4 LD5 LD6 LD7
52C1 52C2
0000 ~ 9999
0000 ~ 9999
0000 ~ 9999
CH11 CH12
0000 ~ 9999
0000 ~ 9999
Cooling and
heating heating
mode mode
selection selection
(Cooling) (Heating)
Preliminary Error 3 minutes
error restart afte
instanta-
neous po-
wer failure
Unit No.6 Unit No.7
Unit No.6 Unit No.7
Remarks
LD8
Lights for LD8 is a relay output
normal which lights up at all
operation
times when the
microcomputers power
is on.
Display the latest preli-
minary error.
If there is no error,
"----" is displayed.
If there is no
error "----" is displayed.
52F
If no demand control,
"----" is diaplayed [
If no demand control,
"----" is diaplayed [
Vacuum
operation
protection
delayed
Unit No.8
If the IC makes an
error stop, lit up Unit
No.1
can be lit out with error
rest in order from small
address.
Unit No.8
Lights up during
cooling.
Blinks during heating.
Goes off during stop
and blower mode.
% ].
% ].