Bosch Worcester Greenstar CDi Compact ErP Series - Selecting the Information Menu

FAULT FINDING AND DIAGNOSIS
CDi Compact
ErP
- 6 720 813 276 (2015/07)66
8.5.1 Selecting the information menu
The Information Menu is a "read only" menu. Information about the boiler
is displayed here, some of the values are updated in real time to give the
current status of the boiler.
All menus time-out after two minutes and the display returns to the
normal operation display, the display backlight turns off after another
30 seconds.
Double up or down arrows indicate that the menu can only be scrolled up
or down, an up and down arrow combination indicates position in the
menu where options can be scrolled either up or down.
To enter Information menu:
1. Press the button to enter the information menu.
▶ A three figure boiler status code will be displayed along side the
information menu number. Refer to status code table on page 65 for
a description of the boiler status codes.
2. Use the and arrow buttons to scroll through the menu items.
▶ Press the button again to exit the Information menu.
Fig. 125 Accessing the Information menu
332 E5 Supply sensor exceeded 110°C
333 Start temporarily not allowed due to flow error on CH
338 F0 Too many short burner starts without confirmation of
water flow
341 D4 CH: supply and/or return temperatures rising too fast
342 D4 HW: supply temperature rising too fast
343 ED CH: flue gas temperature rising but supply
temperature not
344 ED HW: flue gas temperature rising but supply
temperature not
345 EF Supply and/or return temperatures do not change
after burner start
346 EC Flue gas temperature rising too fast
347 E3 Return temperature higher than supply temperature
(some time after burner start)
348 EE HW: supply temperature too hot
349 EF CH: Boil Detect, large delta T despite minimum
burner load
350 E2 Flow sensor shorted 351 'E2' Flow sensor
disconnected
353 -- Burn temporarily blocked due to no 20 minute
continuous OFF time in last 24 hours.
354 Overpressure setting erased
357 Primary Heat Exchanger air venting program active -
approx. 100 seconds
358 Three way valve kick
359 DHW outlet temperature too hot
364 FA Gas valve EV2 leak test failed
365 Fb Gas valve EV1 leak test failed
372 Temporarily ignoring CH requests to limit
temperatures of the appliance components
373 8C SuperLock caused by too frequent thermostat
overheat detections during burning
374 8C SuperLock caused by too frequent ionisation loss
during burning
375 E4 Preheat sensor on DHW inlet Short Circuit
376 E4 Preheat sensor on DHW Inlet Open Circuit
380 Inlet temperature greater than DHW Outlet Set point
800 CC Outdoor sensor defect
808 A7 Domestic hot water sensor defect
810 Domestic hot water remains cold
828 Water pressure sensor defect
Status
codes
Fault
codes
i1 Current status Every operation and mode of the
boiler has a related boiler status code.
The boiler status code is displayed on
the screen as a three figure number.
Refer to table on page 65 or error
table for information on the boiler
status codes.
i2 Last error This can be viewed during normal
operation. Displays the last diagnostic
code with boiler status code.
i3 Maximum heating
output
The maximum possible heat output is
displayed in kW. The boiler may have
the maximum output reduced via
Menu 3.1A
i6 DHW flow rate at 40 °C
temp. rise  15%.
The screen displays the current DHW
flow rate in litres per minute to one
decimal place.
i7 Supply temperature
setpoint
This is the temperature set point for
the primary flow from the main heat
exchanger. (This will be zero during
HW demand.)
i8 Ionization current The ionization current should be equal
to or greater than 35 μA (micro Amps)
when boiler is at maximum rate.
i9 Flow temperature This is the actual temperature from
the main heat exchanger displayed in
real time.
Table 29 Information menu listing
max
min
max
2
3
1
04
bar
1
ok
eco
reset
e
°C
°F
i 1 203
6720646608-75.1Wo
max
min
max
2
3
1
04
bar
1
ok
eco
reset
e
°C
°F
1.
2.
°C
°F
Info
°C
°F
Info