Mark HCNI 533, Техническое руководство

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8.5.5 E4 / EH 60 / E5 / EH 61 / F1 / EC 53 / F2 / EC 52 / F3 / EC 54
(Open circuit or short circuit of temperature sensor diagnosis and solution)
Description:
If the sampling voltage is lower than 0.06V or higher than 4.94V, the LED displays the
failure code.
Recommended parts to check or to prepare:
• Connection wires
• Sensors
• PCB
Troubleshooting and repair:
Note:
For certain models, outdoor PCB could not be removed separately. In this case, the outdoor
electric control box should be replaced as a whole. This picture and the value are only for
reference, actual appearance and value may vary. For certain models, outdoor unit uses
combination sensor, T3, T4 and TP are in the same group.
“Wall” Type Active Line R32 Refrigerant AC: 6. Troubleshooting
[6]-24
Troubleshooting and repair:
NO
YES
NO
YES
6.7.5 E4 / EH 60 / E5 / EH 61 / F1 / EC 53 / F2 / EC 52 / F3 / EC 54
(Open circuit or short circuit of temperature sensor diagnosis and solution)
Description
: If the sampling voltage is lower than 0.06V or higher than 4.94V, the LED displays the failure code.
Recommended parts to check or to prepare:
• Connection wires
• Sensors
• PCB
Check the connection between
temperature sensor and PCB
.
Is it properly wired? Ensure proper connections.
Measure the resistance
value of the sensor.
Replace the sensor.
Is the value
within acceptabl e
parameters?
Replace indoor PCB (E4 / EH 60 / E5 / EH 61) or
outdoor PCB (F1 / EC 53 / F2 / EC 52 / F3 / EC 54).
Note:
For certain models, outdoor PCB could not be removed separately. In this case, the outdoor electric control box
should be replaced as a whole. This picture and the value are only for reference, actual appearance and value
may vary. For certain models, outdoor unit uses combination sensor, T3, T4 and TP are in the same group.
“Wall” Type Active Line R32 Refrigerant AC: 6. Troubleshooting
[6]-24
Troubleshooting and repair:
NO
YES
NO
YES
6.7.5 E4 / EH 60 / E5 / EH 61 / F1 / EC 53 / F2 / EC 52 / F3 / EC 54
(Open circuit or short circuit of temperature sensor diagnosis and solution)
Description : If the sampling voltage is lower than 0.06V or higher than 4.94V, the LED displays the failure code.
Recommended parts to check or to prepare:
• Connection wires
• Sensors
• PCB
Check the connection between
temperature sensor and PCB
.
Is it properly wired? Ensure proper connections.
Measure the resistance
value of the sensor.
Replace the sensor.
Is the value
within acceptabl e
parameters?
Replace indoor PCB (E4 / EH 60 / E5 / EH 61) or
outdoor PCB (F1 / EC 53 / F2 / EC 52 / F3 / EC 54).
Note:
For certain models, outdoor PCB could not be removed separately. In this case, the outdoor electric control box
should be replaced as a whole. This picture and the value are only for reference, actual appearance and value
may vary. For certain models, outdoor unit uses combination sensor, T3, T4 and TP are in the same group.