Fisher Scientific Isotemp 05FFEEFSA Specification sheet

Isotemp™ Freezer, Flammable
Materials Storage & Explosion
Proof Freezers
Model No.
Flammable Materials Storage Freezer 05FFEEFSA
Freezer 05LFEEFSA
Explosion Proof Freezer 05EFEEFSA
Operation and Installation manual

IMPORTANT Read this instruction manual. Failure to follow the instructions in this manual can result in
damage to the unit, injury to operating personnel, and poor equipment performance.
CAUTION All internal adjustments and maintenance must be performed by qualified service personnel.
Material in this manual is for informational purposes only. The contents and the product it describes are
subject to change without notice. The Fisher Scientific™ channel makes no representations or warranties with
respect to this manual. In no event shall the Fisher Scientific channel be held liable for any damages, direct or
incidental, arising from or related to the use of this manual.
© 2018 Thermo Fisher Scientific Inc. All rights reserved.

Contents
Safety Information ........................................................ 1
Alert Signals ............................................................. 1
Intended Use Statement........................................... 1
Explosion Proof and Freezers....................................... 3
Overview .................................................................. 3
Flammable Material Storage Freezers .......................... 5
Overview .................................................................. 5
Laboratory Freezers ..................................................... 7
Overview .................................................................. 7
Unpacking and Installation ........................................... 8
Shipping Carton ....................................................... 8
Unpacking................................................................ 8
Location................................................................... 8
Clearance................................................................. 8
Electrical .................................................................. 8
Be Advised............................................................... 8
Operation..................................................................... 11
Environmental Operating Conditions......................... 11
Temperature Control ................................................ 11
Manual Defrost Procedure........................................ 11
Material Compatibility ............................................... 11
How to Save Energy................................................. 11
Safety Tips ............................................................... 12
Maintenance ................................................................ 13
Cleaning of Units ...................................................... 13

Interior/Exterior and Door Gaskets............................ 13
Troubleshooting ........................................................... 14
Replacement Parts ...................................................... 15
Ordering Procedures.................................................... 16
Warranty ...................................................................... 17

Isotemp Freezer, Flammable Materials Storage & Explosion Proof Freezers Safety Information | 1
Safety Information
Your satisfaction and safety are important to the Fisher
Scientific channel and a complete understanding of this unit is
necessary to attain these objectives.
As the ultimate user of this apparatus, it is your responsibility
to understand its proper function and operational
characteristics.This instruction manual should be thoroughly
read and all operators given adequate training before
attempting to place this unit in service. Awareness of the
stated cautions and warnings, and compliance with
recommended operating parameters – together with
maintenance requirements – are important for safe and
satisfactory operation.The unit should be used for its intended
application; alterations or modifications will void the Warranty.
This product is not intended, nor can it be used, as a sterile or
patient connected device. In addition, this apparatus is not
designed for use in Class I, II or III locations as defined by the
US National Electrical Code, unless otherwise noted.
Alert Signals
ON
OFF
Safety Alert: Important operating instructions.
To reduce the risk of injury or poor performance
of the unit. Read the user manual before putting
the equipment into operation.
WARNING: Indicates an immediately hazardous
situation, which if not avoided, will result in death
or serious injury.
CAUTION: Indicates an immediately hazardous
situation, which if not avoided, may result in
minor to moderate injury.
(No
symbol)
CAUTION: (Without Safety Alert Symbol)
indicates a situation that may result in property
damage.
Shock Hazard: Use of this equipment involves
power supplies which convert line voltage to low
voltage power. Do not modify or use power
supplies other than OEM equipment. Connection
of the power supply may require a properly
grounded receptacle. Potential for electrical
shock or equipment damage exists if
precautions are not followed.
Frost bite/ Low Temperature: Avoid contact
with cold freezer surfaces potential for cold
burns or skin sticking to cold surfaces.
DANGER RISK OF CHILD ENTRAPMENT
Before you throw away your old freezer:
• Take off doors
• Leave the shelves in the place so that
children may not easily climb inside.
If the equipment is used in a manner not
specified by the manufacturer, the protection
provided by the equipment may be impaired.
Intended Use Statement
The Freezers described in this manual are for professional use
only. These products are intended for use in research for the
storage of samples or inventory in the following temperature
ranges:
Freezers: -12°C to -24°C (10.4°F to -11.2°F)
Explosion proof & FMS Freezers: -12°C to -24°C
These are not considered medical devices and have therefore
not been registered with a medical device regulatory body
(e.g. FDA): that is, it has not been evaluated for the storage of
samples for diagnostic use or for samples to be re-introduced
to the body.
WARNING: Only Explosion Proof Units or
Flammable Material Storage Units are to be used
for the storage of flammable inventory/samples.
Note: Do not store corrosive materials in these units. Any
damage which occurs due to storage of corrosives will not be
covered under warranty claims.

2 | Safety Information Isotemp Freezer, Flammable Materials Storage & Explosion Proof Freezers
Corrosive Materials Requiring Refrigerated or Frozen Storage
• Only use models rated as Corrosion Resistant.
• Corrosion Resistant does not mean Corrosion Proof –
Care in storage is still required.
• Store only corrosive reagents/samples which truly need
reduced temperature storage.
• Flammable corrosive materials require Flammable
Material Storage or Explosion Proof models labeled for
the storage of corrosives.
• Containers must be wiped clean of moisture and
chemical residue before being introduced into the unit
and upon return from use.
• Containers must be sealed with either vinyl tape or
Parafilm®.
• Reagents/samples which release HX (X= F, Cl, Br, I) on
contact with moisture (e.g. Acyl halides,
Organosilyl halides etc.) are particularly damaging to
metals.
• Volatile amines will react with HX depositing salts which
will lead to corrosion of metal surfaces.
• Volatile organic acids can exacerbate metal surfaces
already compromised, be sure these are securely sealed.
• Refrigerated compartments are cool or cold areas but
they are not to dry seal your reagents and samples.
• Bleach solutions release chlorine gas which can react
with other volatiles in the cooling chamber or directly
attacks metal surfaces.
• Periodically clean the interiors, clean up spills or leaking
containers.
• Failure to take precautionary actions may lead to damage
not covered by warranty claims Parafilm®is a registered
trademark of Bemis Company, Oshkosh, WI.

Isotemp Freezer, Flammable Materials Storage & Explosion Proof Freezers Explosion Proof and Freezers | 3
Explosion Proof and Freezers
Overview
Conventional freezers are not suitable for storing flammable
materials. Such units have components in their electrical and
refrigeration systems that can trigger explosions of flammable
air-vapor mixtures inside the unit and/or in the immediate
surrounding area.
The Authority Having Jurisdiction (AHJ) determines if work
areas are designated as a hazardous location with respect to
the presence of flammable gases or vapors. Such locations
are defined in (National Fire Protection Association) NFPA 70
Articles 500-501 and OSHA 29 CFR1910.307. Some of these
classified areas are expected to experience concentrations of
flammable gases and/or vapors at or above their lower
flammability limits for extended periods of time.
The construction of our explosion-proof units has been
evaluated by Underwriters Laboratories (UL) and are suitable
for use in classified areas requiring Class I, Groups C and D*
protected equipment. The electrical components such as
thermostats, wiring, splices, relays and compressor motors
on explosion proof units are safely housed within explosion-
proof enclosures and conduit. Compressor surface
temperatures have been evaluated and determined to remain
below the flash point of materials found in Class I, Groups C
and D.
All models have heavy-gauge, rigid, steel construction with a
durable enamel finish. Interiors have epoxy enamel or ABS
plastic construction. Each unit is insulated throughout for
energy-efficient operation.
These units are ideal for storing cyclopropane, ethyl ether,
ethylene, acetone, alcohol, benzene, butane, gasoline,
hexane, lacquer solvent vapors, naphtha, natural gas or
propane along with many other potentially hazardous
materials.
WARNING: For FMS and EXP units where
flammable materials are stored in the cooling
chamber, the cooling chamber is considered a
Class I Div1 or Class I Zone 1 hazardous
location. Any monitoring devices placed in the
cooling chamber must have an intrinsically safe
rating from an appropriate certification body,
such as UL, CSA, FM etc. (this includes battery
or solar powered devices).
Thermocouples for building monitoring systems
must be wired through an electrical barrier
designed to provide isolation against voltage
and current spikes, which could cause a spark
resulting in fire or explosion. It is the end user's
responsibility to meet these requirements. The
Fisher Scientific channel cannot assist with the
selection of devices, recommend, approve or
design any device or monitoring circuit.
*The notation Class I, Groups C and D is an accepted
abbreviation for Class I, Div 1, Groups C and D; Class I Zone
1 Group IIB.
MODEL 05EFEEFSA
21.3"Wide,
Features:
• 5.0 cubic ft. under-counter freezer
• Adjustable Mechanical thermostat
• UL Listed
• Magnetic gasket
• Hermetically-sealed compressor
• Manual defrost
• White color
• 3 Wired shelves and 3 door shelves
Model Freezer Chamber Dimensions
H x W x D inches (cm) Total Vol. Cu. Ft. Exterior Dimensions H x W x D inches (cm)
05EFEEFSA 29.5" x 18.63" x 19"
(74.9 x 47.32 x 48.2 cm)
5.0 33.13" x 21.38" x 30.25"
(84.15 x 54.3 x 64.5 cm)

Model
Electrical
Characteristics
Volts/Hz, Amps
Freezer Temp.Range
°C (°F)
Net Wt.
Lbs. (kg)
Ship Wt.
Lbs. (kg)
05EFEEFSA 115/60, 1.1 -12 to -24
(10.4 to -11.2)
90 (41) 95 (43)
4 | Explosion Proof and Freezers Isotemp Freezer, Flammable Materials Storage & Explosion Proof Freezers
Note: Amps listed are at normal run mode, starting amps may be higher.

Isotemp Freezer, Flammable Materials Storage & Explosion Proof Freezers Flammable Material Storage Freezers | 5
Flammable Material Storage Freezers
Overview
Conventional freezers are not suitable for storing flammable
materials. Such units have components in their electrical and
refrigeration systems that can trigger explosions of flammable
air vapor mixtures inside the unit.
Flammable Materials Storage(FMS) freezers are designed for
use in locations, which are not classified by the Authority
Having Jurisdiction (AHJ) as hazardous. Under normal
operating conditions the build up or presence of flammable
vapors will not occur in the environment external to the unit.
(Commonly known as “Ordinary Locations”)
FMS units are NOT designed for use in Class I,
Division 1, Groups C and D environments, which require
an Explosion- Proof Freezer.
FMS units are designed and evaluated by Underwriters
Laboratories (UL) to meet the requirements of the National
Fire Protection Association Standards Nos. 45, 70 and 99.
These units have no internal electrical components that could
trigger an explosion or fire of hazardous materials inside the
unit.
These units are ideal for storing cyclopropane, ethyl ether,
ethylene, acetone, alcohol, benzene, butane, gasoline,
hexane, lacquer solvent vapors, naphtha, natural gas or
propane along with many other potentially hazardous
materials.
All models have heavy-gauge, rigid, steel construction with a
durable enamel finish. Interiors have epoxy enamel or ABS
plastic construction.Each unit is insulated throughout for
energy-efficient operation.
WARNING: For FMS and EXP units where
flammable materials are stored in the cooling
chamber, the cooling chamber is considered a
Class I Div1 or Class I Zone 1 hazardous
location. Any monitoring devices placed in the
cooling chamber must have an intrinsically safe
rating from an appropriate certification body,
such as UL, CSA, FM etc. (this includes battery
or solar powered devices).
Thermocouples for building monitoring systems
must be wired through an electrical barrier
designed to provide isolation against voltage
and current spikes, which could cause a spark
resulting in fire or explosion. It is the end user's
responsibility to meet these requirements. The
Fisher Scientific channel cannot assist with the
selection of devices, recommend, approve or
design any device or monitoring circuit.
MODEL 05FFEEFSA
21.3"Wide,
Features:
• 5.0 cubic ft. under-counter freezer
• Adjustable Mechanical thermostat
• UL Listed
• Magnetic gasket
• Hermetically-sealed compressor
• Manual defrost
• White color
• 3 Wired shelves and 3 door shelves
Model Freezer Chamber Dimensions
H x W x D inches (cm) Total Vol. Cu. Ft. Exterior Dimensions H x W x D inches (cm)
05FFEEFSA 29.5" x 18.63" x 19"
(74.9 x 47.32 x 48.2 cm)
5.0 33.13" x 21.38" x 29.5"
(84.15 x 54.3 x 74.93 cm)

Model
Electrical
Characteristics
Volts/Hz, Amps
Freezer Temp.Range
°C (°F)
Net Wt.
Lbs. (kg)
Ship Wt.
Lbs. (kg)
05FFEEFSA 115/60, 1.1 -12 to -24
(10.4 to -11.2)
90 (41) 95 (43)
6 | Flammable Material Storage Freezers Isotemp Freezer, Flammable Materials Storage & Explosion Proof Freezers
Note: Amps listed are at normal run mode, starting amps may be higher.

Isotemp Freezer, Flammable Materials Storage & Explosion Proof Freezers Laboratory Freezers | 7
Laboratory Freezers
Overview
These are general-purpose units available in all freezer and
combination /freezer models. These units are intended for
basic laboratory use only. Storage of high-value, life science
materials or clinical biological materials may require alarm,
monitoring, back-up and temperature performance features.
The need to add these features should be determined by your
industrial hygienist or safety officer. These units are not
suitable for corrosive environments.
WARNING: DO NOT store flammable materials
in General Purpose Laboratory Freezers. Risk of
explosion, fire and injury may occur.
For flammable materials use either a Flammable
Material Storage Unit or an Explosion Proof Unit.
MODEL 05LFEEFSA
21.3"Wide,
Features:
• 5.0 cubic ft. under-counter freezer
• Adjustable Mechanical thermostat
• UL Listed
• Magnetic gasket
• Hermetically-sealed compressor
• Manual defrost
• White color
• 3 Wired shelves and 3 door shelves
Model Freezer Chamber Dimensions
H x W x D inches (cm) Total Vol. Cu. Ft. Exterior Dimensions H x W x D inches (cm)
05LFEEFSA 29.5" x 18.63" x 19"
(74.9 x 47.32 x 48.2 cm)
5.0 33.13" x 21.38" x 25.75"
(84.15 x 54.3 x 65.4 cm)
Model
Electrical
Characteristics
Volts/Hz, Amps
Freezer Temp. Range
°C (°F)
Net Wt.
Lbs. (kg)
Ship Wt.
Lbs. (kg)
05LFEEFSA 115/60, 1.1 -12 to -24
(10.4 to -11.2)
90 (41) 95 (43)
Note: Amps listed are at normal run mode, starting amps may be higher.

8 | Unpacking and Installation Isotemp Freezer, Flammable Materials Storage & Explosion Proof Freezers
Unpacking and Installation
Shipping Carton
This should be inspected upon delivery. When received,
carefully examine for any shipping damage before unpacking.
If damage is discovered, the delivering carrier should both
specify and sign for the damage on your copy of the delivery
receipt.
Open the carton carefully making certain that all parts are
accounted for before packaging materials are discarded.
After unpacking, if damage is found, promptly report it to the
carrier and request a damage inspection promptly.
IMPORTANT: Failure to request an inspection of damage
within a few days after receipt of shipment absolves the car-
rier from any liability for damage. You must call for a damage
inspection promptly.
Unpacking
Use the list below when unpacking to verify that the complete
unit has been received. Do not discard packing materials until
all is accounted for.
The following items are included in the shipment:
• Freezer
• Operation Manual
• Inspection Tag
Location
Place the unit on a floor that is strong enough to support the
unit when it is fully loaded. To level the unit, adjust the leveling
legs at the bottom. To level the unit, the leveling legs can be
either turned clockwise to raise that side of the unit, or turn
counter-clock wise to lower that side. Locate the unit away
from direct sunlight and sources of heat (heater etc). Locate
the unit in most convenient place and near a grounded
electrical outlet.
Clearance
Allow 1" of space on the sides. Allow at least 4" above the top
of the unit and the same amount of space between the back
and the wall.
Electrical
With the exception of Explosion-Proof models, all units must
be connected to a grounded outlet matching the nameplate
and/or the information furnished in this manual.
If you are not sure about the outlet, you should contact a
qualified electrician for assistance.
The unit should always be connected to its own individual
outlet.
Explosion-Proof models do not come supplied with a
cord and plug. Units must be hard-wired by a qualified
electrician.
CAUTION: DO NOT REMOVE, under any
circumstances, the grounding prongs from the
3-prong power cord supplied with all units.No
cord/plug is supplied with Explosion-Proof
units.Contact a qualified electrician to hard-wire
unit.
CAUTION: DO NOT USE electrical extension
cords that may result in voltage loss and possible
hazardous operation.
Be Advised
DANGER: RISK OF CHILD ENTRAPMENT.
BEFORE YOU THROW AWAY YOUR OLD
FREEZER:
• TAKE OFF DOORS.
• LEAVE THE SHELVES IN PLACE SO
THAT CHILDREN MAY NOT EASILY
CLIMB INSIDE.
DANGER: UNLESS UNIT IS SPECIFICALLY
DESIGNED FOR COMBUSTIBLE OR
FLAMMABLE ATMOSPHERES DO NOT USE IN
THE PRESENCE OF FLAMMABLE OR
COMBUSTIBLE MATERIALS OR EXPLOSIVE
GASES. DO NOT USE IN PRESENCE OF
PRESSURIZED OR SEALED CONTAINERS—
FIRE OR EXPLOSION MAY RESULT CAUSING
DEATH.

WARNING: BEFORE CONNECTING THE FINAL
POWER SUPPLY, CHECK THE ELECTRICAL
CHARACTERISTICS OF THE UNIT NAMEPLATE
TO SEE THAT IT IS IN AGREEMENT WITH THE
POWER SUPPLIED. IN ADDITION, POWER
SHOULD BE WIRED TO THE UNIT ACCORDING
TO THE ELECTRICAL SCHEMATIC AND ALL
APPLICABLE CODES. ONLY QUALIFIED
ELECTRICIANS SHOULD WORK ON THE
ELECTRICAL PORTION OF ANY UNIT
INSTALLATION.
CAUTION: SOLUTIONS USED TO CLEAN
COILS OR NEUTRALIZE BACTERIA GROWTH
MUST NOT BE CORROSIVE TO METALS
(ENAMEL-COATED STEEL) AND MATERIALS
USED IN THE MAINTENANCE OF THIS
EQUIPMENT— DAMAGE CAN RESULT. USE A
SOFT CLOTH AND WARM WATER TO CLEAN.
Isotemp Freezer, Flammable Materials Storage & Explosion Proof Freezers Unpacking and Installation | 9
How to Seal Junction Box Conduit
with Fiber and Sealing Compound to
Help Protect Against Explosions
(Explosion-Proof Units Only):
The purpose of the procedure that follows is to build fiber
rope dams on the top and bottom hubs of the vertical
conduit. The fiber rope damns will surround conduit wiring
that is housed inside the vertical conduit.
When both the top and bottom fiber rope dams have been
pressed into place, sealing compound is poured between the
two and forms into an airtight plug.
All of this is done in order to prevent the very real threat of gas
entering the junction box and a resulting serious explosion.
After the unit wires have been pulled through the vertical
conduit the following procedure is required:
• Turn power off at the circuit breaker before
proceeding.
• Place a small amount of sealing compound granules,
enclosed, into a clean mixing vessel. Adds small
amounts of water while stirring until a thick paste is
formed, then carefully continue adding smaller
amounts of water until a thick gravy consistency is
achieved— NOT WATERY. Discard any material that
becomes too stiff to use. Never attempt to restore
workability by stirring in more water.
• Locate junction box, back/top-center of unit.
• Unscrew conduit domed-cover.
Figure 1. Sealing the junction box
Figure 2. Conduit, Cutaway
• Insert fiber rope material down into vertical conduit
opening. Pressing down firmly, work the material into the
top hub and the bottom hub and—most importantly
being sure the material COMPLETELY SURROUNDS
THE WIRING, from the top to the bottom, completely
blocking this end of the vertical conduit.
• Insert fiber rope material down into horizontal conduit
opening. Pressing down firmly, work the material into the
left hub and the right hub and—most importantly—being
sure the material COMPLETELY SURROUNDS THE
WIRING, from the top to the bottom, completely blocking
this end of the horizontal conduit.

10 | Unpacking and Installation Isotemp Freezer, Flammable Materials Storage & Explosion Proof Freezers
• Pour sealing compound down in between the two fiber
rope dams filling the remaining space. Pour slowly, being
careful not to trap air bubbles. Immediately wipe off any
spilled sealing compound.
• Screw conduit domed-cover back onto conduit opening.
Note: INITIAL SETUP OF SEALING COMPOUND WILL
OCCUR IN APPROXIMATELY 30 MINUTES HOWEVER, THE
SEALING COMPOUND REQUIRES A MINIMUM OF 8
HOURS ABOVE 0ºC (32ºF) TO DEVELOP SUFFICIENT
STRENGTH TO WITHSTAND EXPLOSIONS.

Isotemp Freezer, Flammable Materials Storage & Explosion Proof Freezers Operation | 11
Operation
Environmental Operating
Conditions
POLLUTION DEGREE* 2
INSTALLATION CATEGORY II
ALTITUDE 2000 Meters
MSL (Mean Sea Level)
HUMIDITY 80%maximum,
non-condensing
ELECTRICAL SUPPLY 115 V 60 Hz AC
VOLTAGE TOLERANCE ±10% of normal rated
line
AMBIENT TEMPERATURE
RANGE
16ºC to 32ºC
(59ºF to 89.6ºF)
PRODUCT USAGE This product is
intended for use
indoors only
*Refer to IEC 664-1
Temperature Control
The freezer temperature can be adjusted by the Cold Control
Knob. Freezer temperature will become lower as the control
Knob is set closer to the “MAX” position.
Manual Defrost Procedure
For the most efficient operation and minimum energy
consumption, defrost the freezer when the frost on the freezer
walls is excessive or 1/4" thick.
1. To start defrosting, unplug the freezer and remove the
samples.
2. Use a sponge or towel to remove water and melting ice
from the freezer floor. After the frost or ice has melted, dry
the interior of the freezer thoroughly.
3. When defrosting is complete, remove drip tray and
dispose of water. Set cold control back to original
position.
CAUTION: Do not use any sharp instrument,
blade or scraper to remove ice and frost on
freezer surfaces because of the very real danger
of puncturing the cooling coil.
CAUTION: Do not use any electrical device to
defrost the unit.
When frost accumulates, to 1/4"or more, the
operating efficiency of the unit will be affected.
Material Compatibility
The interior cabinet of this unit is constructed of High impact
polystyrene. Care must be exercised when determining which
chemicals may be stored in the freezer sections and which
type of storage materials should be employed.
HIPS (High Impact Poly Styrene) Plastic deteriorates when
exposed to, but not limited to the following:
• Amines (Aromatic)
• Aldehydes (Aromatic, Aliphatic)
• Ketones (Aromatic, Aliphatic)
• Esters (Aromatic, Aliphatic)
• Ethers (Aromatic, Aliphatic)
• Hydrocarbons (Aromatic, Halogenated)
This information is taken from Plastics Edition 8
Thermoplastics and Thermosets published by D.A.T.A. and
The International Plastics Selector, Inc. Cordura Companies.
9889 Willow Creek Road P.O. Box 26637
San Diego, California 92126.
How to Save Energy
• Be sure to follow location suggestions as mentioned in
the previous INSTALLATION section.

12 | Operation Isotemp Freezer, Flammable Materials Storage & Explosion Proof Freezers
• Wipe moisture from glassware or other materials before
placing them in a unit.
• Don't overcrowd the unit. Too many items can increase
electrical energy demand in order to keep everything
cool.
• Close the door as soon as possible in hot, humid
weather.
• Make certain that the door is closed tightly.
• As soon as frost has accumulated to 1/4", defrost.
• Keep containers covered, when possible, to reduce
moisture buildup.
• Set operating temperature no colder than necessary for
the items being refrigerated.
Safety Tips
After a unit is in operation, do not touch the
cold surfaces, particularly when hands are
damp. Skin may adhere to the extremely cold
surfaces.We recommend handling samples
by wearing gloves to avoid frost bite.
Never disconnect your unit by pulling on the
power cord. Always grip the plug securely
and pull straight out from the outlet.
Do not use a power cord that shows cracks
or abrasions. Have a qualified electrician
repair or replace damaged cords
immediately.

Isotemp Freezer, Flammable Materials Storage & Explosion Proof Freezers Maintenance | 13
Maintenance
Cleaning of Units
• Turn off the freezer.
• Wash interior liner with a solution of two tablespoons of
baking soda and a quart of warm water. Then, rinse and
wipe it out.
• Do not use soaps, detergents, scouring powders, spray
cleaners or the like for cleaning the interior liner, as these
may cause odors in the freezer compartment.
• Wash the ice cube tray and shelves in a mild detergent
solution and dry with a soft cloth.
• Wipe the exterior surface with a soft cloth dampened with
soapy water and dry it with a soft cloth. Normal appliance
spray cleaners may be used for the exterior only.
Note: Make no attempt to service or repair a
Thermo Scientific product under warranty before consulting
your Thermo Scientific dealer. After the warranty period, such
consultation is still advised, especially when the repair may be
technically sophisticated or difficult. If assistance is needed
beyond what the distributor can provide, please call
Customer Service at 800-438-4851. No merchandise should
be returned directly to the factory without obtaining a Return
Materials Authorization (RMA) number from
Customer Service.
Interior/Exterior and Door
Gaskets
Use only mild soap and water to clean the door gasket. Never
use acid, chemical thinners, gasoline, benzene or the like to
clean any part of the freezer. Boiling water and benzene may
deform or damage the plastic parts.
WARNING: Disconnect plug from electrical
outlet before attempting any maintenance or
repair of this unit.
Any internal adjustments or repairs must be
performed by a qualified service
representative.

14 | Troubleshooting Isotemp Freezer, Flammable Materials Storage & Explosion Proof Freezers
Troubleshooting
In the event that your unit is not operating properly, check the
following before calling for service assistance. This may save
you the cost of unnecessary service calls.
Symptom Possible cause of Problem
Unit not operating Not plugged in.
The circuit breaker has tripped or the fuse has blown.
Compressor turns on and off frequently. Room temperature is warmer than usual.
The door is opened too often.
The door is not closed completely.
The temperature control is not set correctly.
The door gasket does not seal properly.
The freezer does not have the correct clearances.
Noise problems. A trickling sound may come from the flow of refrigerant, which is normal.
As each cycle ends, you may hear gurgling noises caused by the flow of
refrigerant in the freezer.
Contraction and expansion of the inside walls may cause popping and
crackling sounds.
The unit is not level or is in contact with another appliance.

Isotemp Freezer, Flammable Materials Storage & Explosion Proof Freezers Replacement Parts | 15
Replacement Parts
To obtain replacement parts information and pricing, please
call the Customer Service Department at 1-800-438-4851
and have the unit’s model, serial and code numbers available.
This information is located on data plates on the rear of the
unit.

16 | Ordering Procedures Isotemp Freezer, Flammable Materials Storage & Explosion Proof Freezers
Ordering Procedures
Please refer to the Specification Plate for the complete model
number, serial number, and series number when requesting
service, replacement parts or in any correspondence
concerning this unit.
All parts listed herein may be ordered from the Fisher
Scientific dealer from whom you purchased this unit or can be
obtained promptly from the factory. When service or
replacement parts are needed we ask that you check first
with your dealer. If the dealer cannot handle your request,
then contact our Customer Service Department at
800-438-4851.
Prior to returning any materials, please contact our Customer
Service Department for a “Return Materials Authorization”
number (RMA). Material returned without an RMA number will
be refused.