Bosch CLIMATE 5000 VRF RDCI10/28-3, User Manual

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RDCI Series – All DC Inverter Outdoor Units 6 720 862 438 (2016/04)
MALFUNCTION | 5
5. MALFUNCTION
Table 5-1
No. Error code Error or protection type Note
1 E0 Outdoor unit communication error Only displays on auxiliary unit
2 E1 Phase error
3 E2 Communication error with indoor unit
Should there be no communication after 20 minutes from
when the unit is first powered up or no communication for
longer than 2 minutes after the 20 minutes initial power up
4 E4 Outdoor temp. sensor error
5
E5 Voltage protection
6 E7 Discharge sensor error
Once the unit has run for 10 minutes, the unit will allow a
discharge temperature of less than 15 degrees at a pressure
of more than 3.5MPa for 2 minutes. After 2 minutes the
unit will fault and will have to be powered off/ on to reset the
fault.
7 E8 Outdoor unit address error
8 xE9 S11 setting does not match the capacity
9 xH0 Communication error between DSP and main chip X represents a system, 1 is A system , 2 is B system
10 H1 Communication error between 0537 and main chip X represents a system, 1 is A system , 2 is B system
11 H2 Qty. of outdoor units decreases error Only displayed on main unit
12 H3 Qty. of outdoor units increases error Only displayed on main unit
13 xH4 P6 protection has been activated 3 times in 60 minutes Must restart electrical power supply to unit to clear the fault
14 H5 P2 protection has been activated 3 times in 60 minutes. Must restart electrical power supply to unit to clear the fault
15 H6 P4 protection has been activated 3 times in 100 minutes. Must restart electrical power supply to unit to clear the fault
16 H7 Qty. of indoor units not recognised
Indoor units communication lost for more than 3 munites ;
Fault will no clear until the quantity of units are recovered
17 H8 High pressure sensor error Air discharging pressure Pc ≤ 0.3MPa
18 H9 P9 protection has been activated 3 times in 60 minutes Must restart electrical power supply to unit to clear the fault
19 C7 PL protection has been activated 3 times in 100 minutes. Must restart electrical power supply to unit to clear the fault
20 xHd Auxiliary unit error (X=1,2,3, e.g, 1Hd stands for auxiliary unit1 error) X represents an auxiliary unit
21 P0 Inverter compressor maximum temp. protection
22 P1 High pressure protection
23 P2 Low pressure protection
Should ‘P2’ fault occur more than 3 times in 60 minutes, the
unit will then display ‘H5’ fault
24 xP3 Compressor current protection X represents a system, 1 is A system , 2 is B system
25 P4 Discharge temp. protection
Should ‘P6’ fault occur more than 3 times in 100 minutes,
the unit will then display ‘H6’ fault
26 P5 High condenser temp. protection
27 x (P6) Inverter module protection
X represents a system, 1 is A system , 2 is B system. Should
‘P6’ fault occur more than 3 times in 60 minutes, then the
unit will display a ‘H4’ fault. If ‘H4’ fault is displayed for more
than 10 minutes, then ‘xP6’ fault will be displayed
28 P7 Main inverter current protection
29 P8 Auxiliary inverter current protection
30 P9 DC fan protection
Should ‘P9’ fault occur more than 3 times in 60 minutes, the
unit will then display ‘H9’ fault
31 PL Main inverter module temp. protection
32 xL0 DC compressor module error X represents a system, 1 is A system , 2 is B system
33 xL1 DC bus low pressure protection X represents a system, 1 is A system , 2 is B system
34 xL2 DC bus high pressure protection X represents a system, 1 is A system , 2 is B system
35 xL3 Reserve X represents a system, 1 is A system , 2 is B system
36
xL4 MCE error/synchronization/closed loop X represents a system, 1 is A system , 2 is B system
37 xL5 Zero speed protection X represents a system, 1 is A system , 2 is B system
38 xL6 Reserve X represents a system, 1 is A system , 2 is B system
39 xL7 Phase error protection X represents a system, 1 is A system , 2 is B system
40 xL8
Protection should the speed change be greater than 15 Hz before and
after
X represents a system, 1 is A system , 2 is B system
41 xL9 Protection should the required speed fluctuate by more than 15Hz X represents a system, 1 is A system , 2 is B system