Riello Control Box 12/18 Model; Control Box Led Codes; Fault Finding - Bosch WORCESTER Greenstar Danesmoor Kitchen Regular ErP+ 18/25 Installation, Commissioning And Servicing Instruction Manual

Fault finding and diagnosis
8.5

Riello control box 12/18 model

8.5.1

Control box LED codes

Lockout types (burner in lockout)
Refer to Fault finding chart, section 8.5.2, go to line number on chart
RED steady ON
Lockout for no flame after safety time
RED 0.5 seconds ON/ RED 0.5 seconds OFF
Lock out for false flame signal
RED 0.2 seconds ON /RED 0.2 seconds OFF
Lock out for maximum number of flame loss re-lights
RED 2.5 seconds ON / ORANGE 0.5 seconds ON
Lock out for fan motor failure
RED 2.5 seconds ON / GREEN 0.5 seconds ON
Lock out for oil valve circuit driver failure
ORANGE 0.5 seconds ON / GREEN 0.5 seconds ON
Lock out for EEPROM failure
Red 0.5s ON / Red 2.5s OFF
Max pre-heat time exceeded (10 minutes)
Table 11
Anomaly types (Burner in stand-by)
Green 0.5 s ON /
Green 2.5 s OFF
Fit pre-heat link
Pre-heating time
Table 12
8.5.2

Fault finding

Line
1 Control box is supplied with heat demand?
2 Is the pre-heater fitted or if no pre-heater is fitted, is the link fitted?
3 Motor starts after initialization check time 3.5 seconds?
3a Green 0.5 seconds ON/Red 0.5 seconds ON before lockout?
3b Fan motor or oil pump seized?
3c 230 Volts to motor across blue and black motor wires?
Approximately 35 Ω across blue and black motor wires?
3d
4 Motor runs for less than 12 seconds?
4a Motor gives 50 Volts a.c. across black and white wires?
Table 13
56
[3]
[5a]
[9]
[3d]
[8c]
Replace
control
box
[2]
Check
Greenstar Danesmoor Kitchen
Anomaly types (Burner in stand-by)
Green 0.5s ON /
Lock out after 25s
RED 0.5s ON
Extraneous light
Orange steady ON When an anomaly appears during:
Abnormal frequency ▶ pre-purge. the burner remains in pre-
supply purge.
▶ after ignition, burner remains in
operation.
When anomalies disappear the burner re-
starts
Orange 0.2s ON /
Green 0.2s ON
Control box internal
error
Green 0.2s ON / Remote reset / pushbutton is activated for
Red 0.2s ON more than 60 seconds.
Reset pushbutton or When anomaly appears the burner does
remote reset failure not stop
Table 12
Last lockout memory feature
The control box allows the last lockout that happened to be displayed.
Access to this function is possible in both STANDBY and OPERATING
status.
▶ Keep the button pressed for 25 seconds = t < 30 seconds
▶ Release the button.
LED displaying the type of lockout memorised for 10 seconds
The time displaying the type of lockout can be extended by pressing the
reset button again during the display of the lockout (the lock out display
continues for another 10 seconds)
Yes Go to line 2
No Check boiler and system controls
Yes Go to line 3
No Fit the Pre-Heater or link
Yes Go to line 4
No Go to line 3a
Yes Go to line 5a
No Go to line 3b
Yes Replace seized component
No Go to line 3c
Yes Go to line 3d
No Replace control box
Yes Replace motor capacitor
No Replace fan motor and check control box
Yes Go to line 4a
No Go to line 5
Yes Replace control box
No Replace fan motor
ErP+ and Kitchen System
Action
ErP+ -6 720 821 686 (2018/11)