Bosch FB 100 Installation And Operating Instructions Manual page 49

US/CA
Display ( Item 1, 3 and 4 in fig. 15
Text
Fault 56
At least one pump/valve in manual mode
Fault 59
Flow rate in solar system too high/low.
1) The display text is shown on the BUS device (e.g. remote control) that detected the fault. On the
other BUS devices, instead of this, the code is displayed and corresponds to the display test.
Code Cause
147 Pump (SP) in manual mode.
148 Valve (DWU1) in manual mode.
150 Pump (PA) in manual mode.
151 Pump (PB) in manual mode.
152 Pump/valve (PC/DWUC) in
manual mode.
153 Pump (PD) in manual mode.
154 Pump (PE) operated manually.
201 Flow rate in solar system for
collector group 1 is too high.
202 Flow rate in solar system for
collector group 1 is too low.
203 Flow rate in solar system for
collector group 2 is too high.
204 Flow rate in solar system for
collector group 2 is too low.
Troubleshooting | 49
Remedy (by installer)
Reset parameters for pump or
valve to "Auto".
Set flow rate in solar circuit
correctly (e.g. increase/reduce
pump speed) or, if necessary,
further open or close flow
setter on the solar pump
station.
Target: 0.22 gpm (50 l/h) of
collector.
Check that the settings match
the collector area, type and
location factor in the solar
optimization menu.
6 720 643 259 (2010/05)