Carbolite ABA 7/35B - Manual (Page 68)

68 MF60 – 1.04
Warning Lamp & Door Faults (continued)
Door does not
lock at start of
test
► The key has been used
and left in unlocked
position
►
Set the manual override to the
locked position
► Door switch failure ►
► Interface board failure
► Loose connection lead ► Check all leads
Balance Errors
Weight
readings not
stable
► Balance not properly
installed.
►
Re-install balance
► Balance pan extension not
free to move
► Check for obstructions such
as
aggregate in the balance pan
extension holes
► Loose wires obstructing
balance pan
► Check control compartment
► Unit not on firm base ► Reposition ABA or adjust
stand
► Fan motor support bracket
has failed
►
Check/adjust motor support
bracket
► Fan failure causing vibration ► Check/replace motor or
impellor
Fan Problems
Fan not
switching off
► Faulty relay FS in fan circuit ►
Do not use until the relay is
replaced
► Faulty Control Board ►
Check diagnostics screen.
Ref. Error! Reference
source not found.
Fan not
switching on ► Main chamber temperature
less than 100°C
► Check heater is on
► Door is open ►
Close door
► Test not in progress ► Run test
► Fan motor failure ► Replace motor
► Faulty relay FS Replace relay
► Faulty Control Board
► Loose connection lead ► Check all leads
Test Problems
Early
termination of
test
► Test parameters of trigger
weight set too high
► Adjust to suitable setting
► Test parameter of constant
weight delay set too low or
zero
►
Adjust to correct setting and
save;
delete any old setting
► Balance unstable ►
See balance errors
Printer Problems
Printer does not
print
► Printer is out of paper ►
Add more printer paper
► Faulty printer supply switch ►
Replace switch
► Faulty printer ►
Replace printer
► Loose lead ►
Check connector at back of
printer
► Wrong settings in printer ► Run ‘Printer Test’ 12