Helmer iB111 (Version A) - Alarm Activation Problems

360077-1/O 91
Horizon Series™ - Blood Bank Models
Problem Possible Cause Action
Compressor runs
continuously.
Refrigerator setpoint
is set too low.
► Conrmthesetpointissetwithintheoperating
range. Change the setpoint if necessary.
Temperature control
probe is faulty.
► Conrmtheprobeisprovidingresistanceinthe
rangeof98Ωto110Ω.Replacetheprobeif
necessary.
Temperature controller
is faulty.
► Conrmthetemperaturecontrollerisoperating
correctly. Replace the board if necessary.
Compressor starting
relay is faulty.
► Conrmtherelayisoperatingcorrectly.Replaceit
if necessary.
19.3 Alarm Activation Problems
Problem Possible Cause Action
Refrigerator is in
an alarm condition,
but alarms are not
audible.
Alarm system is faulty. ► Conrmthecircuitboardandlineconnectionsare
functioning correctly.
Control board is faulty. ► Replace control parts with those that are included
in the control and display board kit.
Alarm buzzer is faulty. ► Replace the alarm buzzer.
Audible alarms have
been muted.
► Verify audible alarms are not muted. If the time
remaining on the MUTE timer is greater than
5 minutes, change the MUTE timer value to 5
minutes and wait until the timer resets.
A component is
faulty or internal
connections are loose.
► Contact Helmer Technical Service.
Refrigerator meets an
alarm condition, but
the appropriate alarm
is not active.
Control board is faulty. ► Replace control parts with those that are included
in the control and display board kit.
Alarm setpoint was
changed.
► Check the current setpoints for the alarms.
Change the setpoints if necessary.
A component is
faulty or internal
connections are loose.
► Contact Helmer Technical Service.