Helmer iB111 (Version A) - Chamber Temperature Problems

360077-1/O 121
Horizon Series™ - Laboratory, Pharmacy, and International Blood Bank Models
26.2 Chamber Temperature Problems
Problem Possible Cause Action
“Prob” appears on
the display, but the
chamber temperature
is set correctly.
Chamber temperature
probe connection is
loose.
► Check the continuity of the probe wiring and
connection. Secure the connection or replace the
probe if necessary.
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.
Monitor/control board
is faulty.
► Conrmthemonitor/controlboardisoperating
correctly. Replace the board 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.