Monobloc Outdoor Unit Service Manual
93
9.4.1.25. Alarm 74 – Discharge temperature too high
Alarm 74
Discharge temperature too high
9.4.1.26. Alarm 75 – Missing phase in power cable
Alarm 75
Missing phase in power cable
9.4.1.27. Alarm 76 – Inverter heatsink temperature too high
Alarm 76
Inverter heatsink temperature too high
Is there no gas leak?
Is refrigerant charge amount adequate?
NO
Repair defective part.
Recharge refrigerant
YES
Is it not abnormal overload?
YES
Repair defective part
NO
Is PMV normal?
NO
Correct and clear the cause
YES
Check inverter box
Defect
Replace
Correct connector
Sensor error
Replace
IS CN603 connection normal?
Is resistance value of TD sensor normal?
NO
YES
Is there no open of the power supply?
YES
NO
Check wiring
Check inverter box
Defect
Replace
Confirm electric consumption
Is there no down or up of power supply voltage?
(AC342 to 457V)
NO
YES
Check inverter box
Defect
Replace
Dirt blocked the air flow
Inverter box is cleaned
YES
NO
Clean inverter box
Summary of Contents for Estia RUA-CP1701H
Page 15: ...Monobloc Outdoor Unit Service Manual 14 4 3 ESTIA hot water cylinder ...
Page 18: ...Monobloc Outdoor Unit Service Manual 17 5 1 3 Wiring Diagram Sheet 6 ...
Page 19: ...Monobloc Outdoor Unit Service Manual 18 5 1 4 Wiring Diagram Sheet 7 ...
Page 20: ...Monobloc Outdoor Unit Service Manual 19 5 1 5 Wiring Diagram Sheet 8 ...
Page 29: ...Monobloc Outdoor Unit Service Manual 28 Variable fixed speed hydraulic models ...
Page 70: ...Monobloc Outdoor Unit Service Manual 69 ...
Page 75: ...Monobloc Outdoor Unit Service Manual 74 ...
Page 157: ...Monobloc Outdoor Unit Service Manual 156 16 2 21kW Fixed Speed Variable Speed Pumpless ...
Page 160: ...Monobloc Outdoor Unit Service Manual 159 ...
Page 161: ...Monobloc Outdoor Unit Service Manual 160 ...
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Page 164: ...TOSHIBA CARRIER EUROPE S A S Route de Thil 01120 Montluel France 1402410501R03 ...