Bosch HP270-2 - Service Mode Parameters (HP270-2;HP200-250-1); Failure and Test Display Codes

Page 25 from 56 6-720-821-364 SM HP270 – 250 - 200 2016/12 en
The Table 11 and 12 includes the meaning of each parameter visible on the service mode, which can be used by
technicians for diagnostic and repair actions.
Service mode
parameter
Description
Active symbol on
the display
Unit
0d
Set point temperature of hot water on control
unit
ºC
1d
Temperature of Hot Water (T
top
)
(NTC in the top of the tank)
ºC
2d
Temperature of cold water (T
bottom
)
(NTC between pump and condenser)
ºC
3d
Temperature of air in circulation (T
air
)
(NTC between air admission and evaporator)
ºC
4d
Temperature of the evaporator (T
fins
)
(NTC in the fins)
ºC
5d
Temperature in the inlet for coil of the tank
(NTC in coil – external systems)
+
ºC
6d
Temperature in the middle of the tank
(NTC in pocket – external systems)
+
ºC
7d
Current Consumption
(Instantaneous electrical consumption)
A
8d
Number of air defrost procedures
9d
Number of gas defrost procedures
10d
Components Operation (visual info only)
Note: day of the week corresponds to a
component
1 – Pump
2 – Fan (speed 1)
3 – Fan (speed 2)
4 – Compressor
5 – E-Heater
6 – Solenoid valve
7 – No function
1F until 10F
Last 10 failures with error code indication
Attention: (If no error is memorized, display
shows “-- --“)
+
EE
cleaning of the historical memory of the last
10 failures
AL
test display (all segments ON)
Table 11 – Service Mode Parameters HP270-2 and HP200/250-1