Helmer iB111 (Version A) - Chamber Temperature Problems

360077-1/O 90
Horizon Series™ - Blood Bank Models
19.2 Chamber Temperature Problems
Problem Possible Cause Action
Chamber temperature
displayed is higher or
lower than the actual
temperature.
Chamber temperature
probe connection is
loose.
► Test the probe connection. Secure the connection
if necessary.
Temperature probe
wiring is an open
circuit.
► Check the continuity of the probe wiring. Replace
the probe if necessary.
Probe bottle is empty,
or solution is too low.
► Check the level of product simulation solution in
thebottle.Rellthebottlesifnecessary.
Monitor is not
calibrated.
► Conrmthetemperatureprobeisreadingcorrectly.
Calibrate the probe if necessary.
Digital electronics are
locked because of an
interruption in power.
► Reset the monitoring system.
A component is
faulty or internal
connections are loose.
► Contact Helmer Technical Service.
Chamber temperature
does not stabilize
at the refrigerator
setpoint.
Compressor starting
relay is faulty.
► Conrmtherelayisoperatingcorrectly.Replace
the relay if necessary.
Temperature controller
is faulty.
► Conrmthetemperaturecontrollerisoperating
correctly. Replace it if necessary.
Condensing unit fan is
not running.
► Check the condensing unit fan connections.
Replace the fan motor if necessary.
Unit cooler fan is not
running.
► Check the voltage to the fan when door switch is
activated. Replace the fan motor or door switch if
necessary.
Compressor motor
has seized.
► Replace the compressor.
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.
Refrigerant level is too
low.
► Check the refrigeration lines for leaks and repair
them if necessary.
► Check the refrigerant level. Recharge the
refrigerant if necessary.
Condenser grill is
dirty.
► Check the condenser grill. Clean it if necessary.
Circulation at the top
of the chamber is not
adequate.
► Check if there are any items that may obstruct air
owandremovethemifnecessary.
Ambient air
temperature is too
high.
► Conrmtherefrigeratorisplacedappropriately.
Refer to the operation manual.
A component is
faulty or internal
connections are loose.
► Contact Helmer Technical Service.
Probe bottle is empty,
or solution is too low.
► Check the level of product simulation solution in
thebottle.Rellthebottlesifnecessary.