Hitachi RPC-4.0FSN2E - Page 41

41
INSTALLATION AND OPERATION MANUAL
ENGLISH
Code
No.
Category Content of Abnormality Leading Cause
11
Sensor on
Indoor Unit
Inlet Air Thermistor
Failure of Thermistor, Sensor, Connection.
12 Outlet Air Thermistor
13 Freeze Protection Thermistor
14 Gas Piping Thermistor
19 Tripping of Protection Device for Fan Motor Failure of Fan Motor
20
Sensor on
Outdoor Unit
Compressor Thermistor
Failure of Thermistor, Sensor, Connection
22 Outdoor Air Thermistor
24 Evaporating Thermistor
31
System
Incorrect Setting of Outdoor and Indoor Unit Incorrect Setting of Capacity Code.
35 Incorrect Setting in Indoor Unit No.
Duplication of Indoor Unit number, Nº of Indoor unit over
specications.
38 Abnormality of Protective Circuit in Outdoor Unit
Failure of Indoor Unit PCB. Incorrect wiring. Connection to PCB in
Indoor Unit.
41
Pressure
Overload Cooling
(Possibility of high pressure device activation)
O.U. Pipe Thermistor Temp. is Higher than 55ºC
and the Comp. Top Temp. is Higher than 95ºC
when O.U. Protection Device is activated.
42
Overload Heating
(Possibility of high pressure device activation)
I.U. Freeze Protection Thermistor Temp. is Higher than 55ºC and the
Comp. Top Temp. is Higher than 95ºC when O.U. Protection Device
is activated.
47
Activation of Low Pressure Decrease Protection
Device
Stoppage by Excessively Decrease of evaporating Temperature
(Te < -35ºC) is activated 3 times in one hour, Locked Motor in Heating
Operation.
48
Inverter
Activation of overload protection Overcurrent in Inverter Module.
51 Abnormality of Current Sensor for Inverter Failure of Control PCB, Inverter Module.
53 Protection Activation of Transistor Module
Transistor Module Abnormality.
Failure of Compressor, clogging of Heat Exchanger.
54 Inverter Fin Temperature Increase
Abnormal Inverter Fin Thermistor.
Clogging of Heat Exchanger
Abnormal Outdoor Fan
55 Inverter Module Abnormality Failure of Inverter Module.
57 Outdoor Fan Fan Motor Abnormality
Disconnected wire of Incorrect wiring between Control PCB and
Inverter PCB.
Incorrect Wiring or Fan Motor Abnormality
59 Inverter
Thermistor of Inverter Fin Abnormality (for
Inverter Fin Temperature)
Loose connector, Disconnnected wire short circuit
b1
Indoor unit No.
setting
Incorrect unit No. Setting Over 64 indoor units setting by No. or indoor unit address.
EE Compressor Compressor Protection Alarm Failure of Compressor.
PMML0197_r0_04-10.indb 41 08/07/2010 9:21:01