Bosch DOMESTIC HOT WATER HEAT PUMP Technical Manual page 33

X X
X
X X
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Working modes:
Error Mode
OFF Mode
Stand-by Mode
Operation Mode
Diagnostic /
Adjustment Mode
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In case the air temperature is out of the specified range, the appliance automatically activates the electrical back
up (without leaving the Combi mode). One hour after the warning display (HOT or COLD) has appeared, the
appliance checks the air temperature again and, if it is within the range values, turns again to heat pump operation.
The control loop is done every hour, after electrical back up emergency operation.
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6d Number of air defrost procedures
7d Number of gas defrost procedures
last 10 failures with error code indication
1F until 10F
Attention:
(If no error is memorized, display shows "-- --")
cleaning of the historical memory of the last
EE
10 failures
AL test display (all segments ON)
Exit Service Mode
E
(for FD<202, minimum press time of 3sec)
Table 4 – Service Mode Parameters
Reset function by pressing OK
button for more than 3 sec
Anti-Freeze Protection function
active for tank and module
6720649497 SM HP270-1 2012/09 en
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- Combi Mode
- HP Mode
- Electrical Mode
- Full
- Adjustment Mode
- Service Mode
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