Shellab SSI5R-HS-2 - Manual (Page 15)

SHEL SSI5R-HS and SSI5R-HS-2 Shaking Incubator Operational Manual
15
What is the problem? Possible Causes To solve the problem...
problem...
Call customer service. 
The Main Temperature Control
displays “LO”.
 Probe has shorted out.

Call customer service.
The unit will not heat up to set point. 
The amperage and voltage of
the unit’s power source do not
match the unit’s requirements.
- Or -

 Over Temperature Protection
(OTP) is set too low.

1. Make sure the power source
matches the data plate. (ie.
voltage, hz, etc.)
If this does not solve the
problem...
2. Turn the OTP clockwise until the
heating light or safety light turns
on.
The unit will not heat at all.
 The OTP is not set high
enough.
- Or -


Temperature Controller failure.
- Or -


Element failure.

1. For diagnostics purposes, turn
the OTP fully clockwise. See
OTP section.
Call customer service.
The indicated temperature inside the
chamber is fluctuating more than + 0.1

C.
 The unit has not had time to
stabilize to ambient conditions.
- Or -


Temperature sensor not
positioned properly.
- Or -


The temperature sensor is
faulty.
- Or -

 Electrical noise 
1. If you have just turned the unit
on, wait 24 hours for the
incubator to stabilize at a
warmer temperature.
If this is not the problem...
2. If you have just opened the
unit’s door, wait for the
temperature to stabilize.
If this is not the problem...
3. Stabilize ambient conditions.
If this is not the problem...
4. Call customer service.
Cannot adjust set points or calibration.

This is a controller failure.
 1. Turn entire unit off and then on
to reset the unit. This may
temporarily solve the problem,
but controller may be faulty.
If this does not solve the
problem...
2. Call customer service.
Refrigeration (SI6R models only)
The unit will not cool.
 The evaporator has too much
ice built up on it.
- Or -

 The unit is not calibrated
correctly.
- Or -


There is not enough space
between the unit and adjacent
walls or partitions.
- Or -

 The door seal does not work
properly.

1. For diagnostics purposes, turn
the OTP fully clockwise. See
OTP section.
If this does not solve the
problem...
2. Recalibrate the Main
Temperature Controller. See “ “
on page .
If this does not solve the
problem...
3. Be sure there is 5 cm (2 in.) of
space between the rear and
sides of the unit, and any walls
or partitions that can obstruct
free airflow.