Figure 8.6.1 Error Codes; Figure 8.6.3 Master Control Permanent Lock-Out Errors (A) - Manual Reset - Hamworthy MILBORNE381 Series Design Installation, Commissioning And Operating Instructions

1. The display starts flashing to signal one or
more faults.
2. Press S4 (+): the display will alternate between
the address of the first unit (boiler module) and
the first error code.
Press S4 again (+) to display all the errors for
this unit (boiler module).
The error of the successive unit (boiler module)
will be visualized one after the other, press S4
(+).
Press S5 (-) to display the errors in the oppo-
site way, from the last to the first unit (boiler
module)
(e.g. unit [boiler module] 2 error code E 05.
Fault can be either E codes or A codes.
If errors derive from the Master, they will be
displayed (before the other errors) as U 00 +
error code. The Master controller always has
addresses U 00.
3. Press S2 (SET/ ESC) to exit 'errors' and go
back to display mode.
Figure 8.6.1

Figure 8.6.3 Master control permanent lock-out errors (A) - manual reset

Display Nr PC Nr
A16 10
A18 12
HAMWORTHY HEATING LTD
Procedures
Fault
Internal E2PROM error
Internal communication error
Button Required
Action
Reset, check and replace Master board
Reset, check and replace Master board
35
MILBORNE
Display
See error list for codes and re-
lated faults
500001130/J