Mitsubishi Electric EHST20C-VM6HB Service Manual page 45

<Table 9--1>
Request
code
10 Error history 1 (latest)
104 Error history  (second to last)
105 Error history  (third to last)
Water circulation pump 1 - Accumulated operating time (after reset)
154
Water circulation pump 2 - Accumulated operating time (after reset)
156
Water circulation pump 3 - Accumulated operating time (after reset)
157
Indoor unit - Dip SW1 setting information
16
Indoor unit - Dip SW2 setting information
16
Indoor unit - Dip SW3 setting information
164
Indoor unit - Dip SW4 setting information
165
Indoor unit - Output signal information
175
Indoor unit - Input signal information
176
Mixing valve opening step
177
Indoor unit - Software version 1st 4 digits
190
Indoor unit - Software version last 4 digits
191
Water circulation pump 1 - Accumulated operating time reset
40
Water circulation pump 2 - Accumulated operating time reset
4
Water circulation pump 3 - Accumulated operating time reset
4
504 Indoor unit - Zone 1 room temp. (TH1A)
505 Indoor unit - Ref. liquid temp. (TH)
Indoor unit - Return water temp. (THW2)
506
507 Indoor unit - Zone  room temp. (TH1B)
Indoor unit - DHW tank water temp. (THW5)
508
Indoor unit - Zone 1 flow water temp. (THW6)
509
510 Indoor unit - Outside air temp. (TH7)
Indoor unit - Flow water temp. (THW1)
511
Indoor unit - Zone 1 return water temp. (THW7)
51
Indoor unit - Zone 2 flow water temp. (THW8)
51
Indoor unit - Zone 2 return water temp. (THW9)
514
Indoor unit - Boiler flow water temp. (THWB1)
515
Indoor unit - Boiler return water temp. (THWB2)
516
550 Indoor unit - Error postponement history 1 (latest)
551 Indoor unit - Operation control at time of error
55 Indoor unit - Operation mode at time of error
Indoor unit - Output signal information at time of error
55
Indoor unit - Input signal information at time of error
554
555 Indoor unit - Zone 1 room temp. (TH1A) at time of error
556 Indoor unit - Zone  room temp. (TH1B) at time of error
557 Indoor unit - Ref. liquid temp. (TH) at time of error
Indoor unit - Flow water temp. (THW1) at time of error
558
Indoor unit - Return water temp. (THW2) at time of error
559
Indoor unit - DHW tank water temp. (THW5) at time of error
560
Indoor unit - Zone 1 flow water temp. (THW6) at time of error
561
Indoor unit - Zone 1 return water temp. (THW7) at time of error
56
Indoor unit - Zone 2 flow water temp. (THW8) at time of error
56
Indoor unit - Zone 2 return water temp. (THW9) at time of error
564
Indoor unit - Boiler flow water temp. (THWB1) at time of error
565
Indoor unit - Boiler return water temp. (THWB2) at time of error
566
Indoor unit - Failure (P1/P2/L5/L8/LD) thermistor
567
Mixing valve opening stop at time of error
568
Operated Flow switch at time of failure (L9)
569
Note
Refer to outdoor unit service manual for request code 0 to 102, 106 to 149.
Request codes 103 to 105 indicate error histories of both indoor and outdoor units.
As only four digits can be displayed at one time the software version number is displayed in two halves.
Enter code 190 to see the first four digits and code 191 to see the last four digits.
For example software version No. 5.01 A000, when code 190 is entered 0501 is displayed, when code 191 is entered A000 is displayed.
OCH531
Request content
45
Range
Displays error history. ("– –" is displays if no history is present.)
Displays error history. ("– –" is displays if no history is present.)
Displays error history. ("– –" is displays if no history is present.)
0 - 9999
0 - 9999
0 - 9999
Refer to detail contents described hereinafter.
Refer to detail contents described hereinafter.
Refer to detail contents described hereinafter.
Refer to detail contents described hereinafter.
Refer to detail contents described hereinafter.
Refer to detail contents described hereinafter.
0 - 10
Refer to Note below.
Refer to Note below.
—
—
—
–39 - 88
–39 - 88
–39 - 88
–39 - 88
–39 - 88
–39 - 88
–39 - 88
–39 - 88
–39 - 88
–39 - 88
–39 - 88
–40 - 140
–40 - 140
Displays postponement code.
("– –" is displays if no postponement code is present.)
0 Standard, 1 Heater,  Boiler
0 OFF, 1 DHW, 2 Heating, 3 Cooling 4, Legionella prevention,
5 Freeze protection, 6 Operation stop
Refer to detail contents described hereinafter
Refer to detail contents described hereinafter
–39 - 88
–39 - 88
–39 - 88
–39 - 88
–39 - 88
–39 - 88
–39 - 88
–39 - 88
–39 - 88
–39 - 88
–40 - 140
–40 - 140
1 TH1A,  TH,  THW1, 4 THW, 5 THWB1, 6 THW5,
7 THWB, 8 TH1B, A THW6, B THW7, C THW8, D THW9
0 - 10
1 Flow switch 1, 2 Flow switch 2, 3 Flow switch 3
Unit
Code
—
—
10 hours
10 hours
10 hours
—
—
—
—
—
—
Step
—
—
—
—
—
°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
—
—
—
—
—
°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
—
Step
—