Malfunction Code Of Outdoor Unit - Bosch Climate 5000 VRF MDCI10-1 Owner's Manual

5. MALFUNCTION CODE OF OUTDOOR UNIT

Table 5-1 (12/14/16 KW)
Display Error or protection definition
E2 Communication malfunction between indoor unit and outdoor unit
E4 T3 &T4 temperature sensor malfunction
E5 Power voltage protection
E6 Fan Protection
E7 Compressor discharge temperature sensor malfunction
E9 EEPROM malfunction
E.9. Compressor signal error
EA A fan in the A region run for more than 5 minutes in Heat mode
Eb 2 times of E6 protection in 10 minutes
F1 The bus voltage is less than 200V for 5S
H0 Communication malfunction betweem IR341/main board
H4 3 times of L0 or L1 protection in 60 minutes
P1 Hi-pressure protection
P2 Low-pressure protection
P3 Input current protection
P4 Compressor discharge temperature protection
P5 Condenser high temperature protection
P8 Typhoon protection
PE Indoor evaporator hi-temp protection
PL Radiator temperature protection (Reserved)
L0 Module protection
L1 DC generatrix low voltage protection
L2 DC generatrix high voltage protection
L4 MCE malfunction
L5 Zero speed protection
L7 Phase sequence protection
L8 Speed difference >15Hz protection between the front and the back clock
L9 Speed difference >15Hz protection between the real and the setting speed
Display Function Instruction:
1. When stand by, LED displaying the amount of indoor units online which communicate with outdoor units.
2. When operation, LED displaying frequency value of compressor.
3. When defrost, LED displaying "dF".
Heat Pump Mini VRF Outdoor Unit
MALFUNCTION CODE OF OUTDOOR UNIT | 7
6 720 844 640 (2015/11)