28 | Appendix A: Alarm Summary
Thermo Fisher Scientific ULT Freezers
Appendix A: Alarm Summary
Alarm Summary
Alarm Message
Warning
Icon
Remote
Alarm Event
Description
Warm Alarm
Thermometer
Yes
The freezer temperature has exceeded the warm alarm set
point.
Prolonged lid openings and warm product loading may
cause warm alarms.
Cold Alarm
Thermometer
Yes
The freezer temperature has exceeded the cold alarm set
point.
Lid Open Ajar
Door/Lid
Yes
Lid open for greater than 3 minutes will cause door open
alarm.
Control Probe
Failure
Wrench
Yes
Cannot display cabinet temperature. The freezer will
continue to operate in full run mode. Contact customer
service.
Display will intermittently show “E02”.
Heat Exchange
Probe Failure
Wrench
Yes
The freezer will continue to operate with current freezer
setpoints, but cabinet temperature variation will increase.
Contact customer service.
Display will intermittently show “E03”.
Ambient Probe
Failure
Wrench
Yes
Ambient Probe TC has malfunctioned. This doesn't affect
the performance of the unit. Contact service for further
assistance.
Display will intermittently show “E11”.
Main to UI Lost
Communication
Wrench
Yes
A communication error has occurred within the system.
Contact customer service.
Display will intermittently show “E08”.
BUS Lost
Communication
Wrench
Yes
A communication error has occurred within the backup
system. Contact customer service.
Display will intermittently show “E09”.
Failure to Reach
Set point
Wrench
Yes
Lid openings or product loading may cause this
notification. Allow unit to stabilize. If condition persists,
contact customer service.
Display will intermittently show “E05”.
Power Failure Alarm
Wrench
Yes
Unit in power failure mode.
Display operating on battery power. Check unit plug, unit
circuit breaker in the ON position, and supply voltage.
Display will intermittently show “E04”.