Mitsubishi Electric PUHZ-SW75VHAR6 Service Manual page 61

Split-type, air to water heat pump, outdoor unit r410a
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Error history 1 (latest)
103
Error history 2 (second to last)
104
105
Error history 3 (third to last)
Abnormal thermistor display
106
(TH3/TH6/TH7/TH8)
107
Operation mode at time of error
108
Compressor-Operating current at time of error
Compressor-Accumulated operating time at time of error
109
Compressor-Number of operation times at time of error
110
Discharge temperature at time of error
111
112
Outdoor unit -Liquid pipe 1 temperature (TH3) at time of error
113
114
Outdoor unit-2-phase pipe temperature (TH6) at time of error
115
Outdoor unit-Outside air temperature (TH7) at time of error
116
117
Outdoor unit-Heat sink temperature (TH8) at time of error
118
Discharge superheat (SHd) at time of error
119
Degree of subcooling (SC) at time of error
Compressor-Operating frequency at time of error
120
Outdoor unit at time of error
121
• Fan output step
Outdoor unit at time of error
122
• Fan 1 speed (Only for air conditioners with DC fan)
Outdoor unit at time of error
123
• Fan 2 speed (Only for air conditioners with DC fan)
124
125
LEV (A) opening at time of error
126
LEV (B) opening at time of error
127
128
129
Condensing temperature (T
63HS
130
Thermostat ON time until operation stops due to error
OCH755
Displays error history. (" --" is displayed if no history is present.)
Displays error history. (" --" is displayed if no history is present.)
Displays error history. (" --" is displayed if no history is present.)
3
: TH3
6 : TH6
7 : TH7
8 : TH8
0 : No thermistor error
Displayed in the same way as request code "0 ".
0–50
0–9999
0–9999
3–217
−40–90
−39–88
−39–88
−40–200
0–255
0–130
0–255
0–10
0–9999
0–9999
0–500
0–500
) at the time of error
−39–88
0–999
Description
Unit
(Display range)
Code
Code
Code
Sensor
number
A
10 hours
100 times
:
:
:
:
:
:
:
Hz
Step
rpm
rpm
Pulses
Pulses
:
Minutes
61
Remarks
"0" is displayed if the air conditioner is a single-
fan type.

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