Table Of Contents - Mitsubishi Heavy Industries FDT200VSAPVF1 Service Manual

2.2 Troubleshooting flow
(1) List of troubles
Remote control display
None Operates but does not cool.
None Operates but does not heat.
None Earth leakage breaker activated
None Excessive noise/vibration (1/3)
None Excessive noise/vibration (2/3)
None Excessive noise/vibration (3/3)
None Louver motor failure (FDT, FDTC, FDEN, FDF series)
None Power source system error (Power source to indoor control PCB)
None Power source system error (Power source to remote control)
INSPECT I/U INSPECT I/U (When 1 or 2 remote controls are connected)
INSPECT I/U INSPECT I/U (Connection of 3 units or more remote controls)
Communication error at initial operation
WAIT
None No display
E1 Remote control communication circuit error
E5 Communication error during operation
E6 Indoor heat exchanger temperature thermistor anomaly
E7 Return air temperature thermistor anomaly
E8 Heating overload operation
E9 Drain trouble
E10 Excessive number of connected indoor units (more than 17 units) by controlling with one remote control
E11 Address setting error of indoor units
E14 Communication error between master and slave indoor units
E16 Indoor DC fan motor anomaly
E18 Address setting error of moster and slave indoor unit
E19 Indoor unit operation check, drain motor check setting error
E20 Indoor DC fan motor rotation speed anomaly
E21 Defective panel switch operation ( FDT only)
E28 Remote control temperature thermistor anomaly
E35 Cooling overload operation
E36 Discharge pipe temperature error
E37 Outdoor heat exchanger temperature thermistor anomaly
E38 Outdoor air temperature thermistor anomaly
E39 Discharge pipe temperature thermistor anomaly
E40 High pressure error (63H1 activated)
E41 Power transistor overheat
E42 Current cut
E45 Inverter communication error
E48 Outdoor fan motor anomaly
E49 Low pressure error or low pressure sensor anomaly
E51 Inverter or power transistor anomaly
E53 Suction pipe temperature thermistor anomaly
E54 Low pressure sensor anomaly
E55 Compressor under dome temperature thermistor anomaly (Model FDC 250 only)
E57 Insufficient refrigerant amount or detection of service valve closure
E59 Compressor startup failure
Description of trouble
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'14 • PAC-SM-215
Reference page
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