Figure 8.6.6 Boiler Module Blocking Errors (E) Auto Reset - Hamworthy MILBORNE381 Series Design Installation, Commissioning And Operating Instructions

Figure 8.6.6 Boiler module blocking errors (E) - auto reset
Display Nr PC Nr
E33 33 Polarity reversed (L~N)
Reset key error - pressed more than 7 times in
E34 34
30 mins
E35 35 Differential water pressure switch error
E36 36 Internal error
E37 37 Flame detection error
E38 38 Flue sensor - short circuit
E39 39 Flue sensor - open circuit
E40 40 Supply frequency error
E41 41 Internal error
E42 42 Flow temperature sensor - short circuit
E43 43 Flow temperature sensor - open circuit
E44 44 Return temperature sensor - short circuit
E45 45 Return temperature sensor - open circuit
E46 46 Flow sensor error—limit temp. exceeded
E47 47 Return sensor error - limit temp. exceeded
Flue sensor error - limit temp. exceeded. With
E48 48
this error the fan runs at maximum speed
E49 49 Poor or no earth bond
8.6.7 Controls Information
Controls information can be accessed by pressing the buttons in a prescribed sequence see figure 8.1.1
S1 : Press it in order to unlock the unit when a fault has occurred.
S2: To enter into the parameters and monitor mode of each single unit.
S3: Displays the running state of the different master circuits
S4 & S5: To increase decrease a certain value.
S6: To store new values.
8.6.8 Mode Display.
The D5 red LED turns on in case a fault occurs causing the permanent lock-out of one boiler module (Reset either
the Master or the relevant boiler module to restore normal operation).
The D4 green LED displays the presence of communication between the Master and individual boiler modules.
The 3 display LED's U2, U3 and U4 display the following information:
8.7 Users Parameter Adjustments
The three following User Parameters can be changed
from the function 'mode display':
◊
High temperature heating circuit set-point
◊
Water circuit temperature set-point
◊
Low temperature heating circuit set-
point
Press S3 to display the listed values:
◊
High temp. heating circuit flow _T (pos. 1)
◊
Domestic Hot Water_T (pos. 2)
HAMWORTHY HEATING LTD
Fault
◊
The following procedure will modify one of the
above values:
Press S2 to select the desired value,
the two right LED digits will flash.
Note: if the value does not need changing, press S2 to
return to the mode display.
If the value needs to be modified,
press S4 and S5 until the desired value is displayed.
Press S6 to store the value. The chosen
value will stop flashing and the display will be
restored to the mode display.
37
MILBORNE
Action
Check and correct
If after 40 mins, the error has not cleared,
check and replace the Slave board
Check the boiler flow rate and replace the
switch if necessary
Check and replace Slave board
Check and replace or clean the electrodes
Check and replace flue sensor
Check and replace flue sensor
Main frequency is not 50Hz, check supply
Check and replace Slave board
Check and replace flow sensor
Check and replace flow sensor
Check and replace return sensor
Check and replace return sensor
Check the flow rate through the boiler
Check the flow rate through the boiler
Check the flow rate through the boiler, clean
the heat exchanger, water and gas side
Check installation and replace Slave board
Low temp. heating circuit flow_T (pos 4)
500001130/J