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Part number 20078, Rev 0 

 

QUICK TROUBLESHOOTING GUIDE 

 

Check these items before calling for service 

PROBLEM: 

POSSIBLE CAUSE / SOULTIONS: 

Unit does not run 

  Electrical circuit is not 110-120V 60Hz. 

  The power cord is not plugged in. 

  No power at electrical outlet. Check to make sure 

breaker is not tripped or fuse is not blown. Additionally, 
make sure unit is not plugged into a Ground Fault Circuit 
Interrupter (GFCI) type of outlet.  

Unit does not maintain at the 
proper temperature 

  Check the room temperature.  We recommend the 

refrigerator or freezer should be placed in the air 
conditioned room between 65°F to 85°F.  If the room 
temp is too warm, the refrigerator or freezer may not be 
able to maintain the interior temp at proper range.   

  Door is not closed properly. 

  Amount of stored product is overloaded. 

  Product replacements are pushed against rear wall or 

interrupted the proper refrigerator air circulation.  For the 
proper air circulation, place the products evenly on each 
shelf.  Do not push against the refrigerator’s rear or side 
walls. 

  Evaporator is blocked by frost or ice.  Remove the 

products, unplug the refrigerator or freezer power, and 
allow the unit to defrost.  If the problem still exists, call 
for service.  

  3

rd

 party thermometer is placed incorrectly. For proper 

temperature monitoring, the thermometer should be 
place in the middle of refrigerator. 

 

PLEASE NOTE

!  Prior to shipment, each refrigerator and 

freezer has been calibrated and tested at proper temperature 
range. 

Appliance runs too long 

  Prolong door openings. 

  Control set too cold. 

  Room temperature is high which will make the unit work 

harder to keep cool.  

Temperature of external wall 
surface is warm 

  The exterior walls can be as much as 30 degrees 

warmer than room temperature due to the embedded 
condenser coils. This is normal when the unit is 
operating.   

 

 

 

Summary of Contents for ABT-9R

Page 1: ...ry Make sure you get a signed copy Send a written request for an inspection to the carrier B Concealed Damage This type of damage may not be discovered until the unit is being unpacked When concealed...

Page 2: ...e the unit s model and serial number ready as well as the problem description The model and serial number is located on the serial tag which can be found on the interior left upper wall of the unit Fo...

Page 3: ...y receipt acknowledging the damage This has to happen at the time of delivery or it won t happen at all Keep a copy for your records and send another to the carrier s damage claims department along wi...

Page 4: ...circuit is recommended to prevent possible loss of product due to over loading or failure of other equipment on the same circuit PROTECT THE CIRCUIT WITH A 20 AMP DELAY TYPE FUSE OR CIRCUIT BREAKER Do...

Page 5: ...elf clips making sure all corners are seated properly Temperature control NOTE The control is preset at the factory to provide the desired air and product temperatures inside of the unit and requires...

Page 6: ...cking the evaporator fan s if installed There should be at least 4 inches of clearance below the fan s to allow proper air flow Do not overload the unit Maximum suggested load is about 75 of chamber c...

Page 7: ...placements are pushed against rear wall or interrupted the proper refrigerator air circulation For the proper air circulation place the products evenly on each shelf Do not push against the refrigerat...

Page 8: ...prevent leakage Door will not close The unit is not level Refer to the Leveling section at the beginning of this manual Check for dirt and debris or items passing through the door seal MOISTURE DURIN...

Page 9: ...water out of sponge or cloth before cleaning around controls light bulb or any electrical parts Glass Doors if applicable Soap and water Clean the glass with a mild detergent and water on a soft clot...

Page 10: ...Y In addition to the two 2 year warranty stated above Horizon Scientific Inc warrants its hermetically and semi hermetically sealed compressors to be free from defects in both material and workmanship...

Page 11: ...od or other external causes It does not apply to defects resulting from failure to properly install operate or maintain the product in accordance with the printed instructions provided or damage cause...

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