Helmer Scientific i.Series
®
and Horizon Series
™
Freezer - Undercounter
Service and Maintenance Manual
360417/A
54
10.2 Alarm Reference
If an alarm condition is met, an alarm activates. Some alarms are visual only; others are visual and audible. Some alarms are sent
through the remote alarm interface.
The table indicates if an alarm is audible (A), visual (V), or sent through the remote alarm interface (R).
Note
If the system is in Power Failure (PoFF) alarm, an Er05 error can be expected as a result of the absence of power to the
compressor inverter.
Table 11. Alarm Indications
Alarm
Alarm Type
Visual Indicator
High Temperature (Primary Monitor Probe)
A, V, R
HIGH TEMP Lamp
Low Temperature
(Primary Monitor Probe)
A, V, R
LOW TEMP Lamp
Display/Control Board Communication Error
A, V, R
Er04
Control Board to Compressor Inverter Error
A, V, R
Er05
Door Open
(Time)
A, V, R
DOOR OPEN Lamp
(flashes after 3 minutes)
Power Failure
A, V, R
PoFF
Probe Failure
Primary Monitor
(RTD1)
A, V, R
Er01
Control
(RTD2)
A, V, R
Er02
Evaporator
(RTD3)
A, V, R
Er03
No Battery
V
Er06
Configuration Error
A, V, R
Er07
Horizon Series