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page 10
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272014 - 04.02.2000
10 - Fault finding / alarms
Use the Fault Finding Guide on the right as follows:
Begin with "START" and follow the arrows marked both "YES" and
'NO' according to the type of fault.
The guide uses the following abbreviations:
Control of the HIR32 series
When an alarm occurs, the buzzer and the display indication can be reset manually pressing the
key PRG/mute. For the alarm code the reset is active only if the alarm cause has been removed.
The reset for the alarm contact is automatic. The reset of the adjuster operation occurs autoĆ
matically when the alarm cause is removed.
For better information see the HIR32 manual.
Microface control
The alarms, shown in the guide, are reset as in
Fig. f.
Fig. c - How to reset an alarm
ALARM ON
(alarm LED
+ buzzer on)
read alarm
message
on display
press RESET
(mutes siren)
do you know
which alarm
has intervened?
rectify problem
using Fault
Finding Guide
press RESET
return to
normal operation
(alarm LED off)
fault
rectified
fault not rectified
press REPORT:
verify which alarm
has intervened
No
Ye s
press HOME
check fan
operation plus
electrical circuit
check for high
air temperature
or low air flow
switch manual
operation off
reset conditioner
model
replace
interface
board
replace
EPROM
START
replace
HIROMATIC/
MICROFACE
is normal
operation
restored?
continue
normal
operation
switch unit
main switch
off and then on
replace
sensor
verify state
of component:
continue if
everything is ok
unit operating
in manual
correct condiĆ
tioner model on
Hiromatic/
Microface
is unit
operating
correctly?
faulty
interface
card
EPROM error
display board
failure
RAM/EPROM
error
Yes
No
Yes
No
Yes
No
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
No
Yes
Yes
No
air flow
lack
electric
heater
overheating
sensor
failure alarms
working
hour
alarms
NOTES:
S If several alarms intervene in sequence, only the last to interĆ
vene is displayed.
S The STATUS REPORT lists all recent alarms (see Hiromatic/
Microface manual).
S For further information see the Hiromatic manual.