TSX FMS Freezer
Maintenance
Alert
WARNING: Risk of Shock. Disconnect equipment from main power before attempting any maintenance to equipment or its controls unless stated otherwise.
To clean the cabinet interior, remove the shelves, drawers, or baskets following the instructions. Use a solution of water and mild detergent for cleaning. Rinse the interior storage components and wipe them dry with a soft cloth.
Clean the condenser filter every three months. There is one condenser filter located in the back cage of the unit that can be accessed without removing the back cage or disconnecting the power.
To clean the filter, complete the following steps:
- Remove the filter by pulling upwards through the slot in the back cage.
- Shake the filter to remove loose dust.
- Rinse the filter in clean water.
- Shake the excess water from the filter and let it dry.
- Reinstall filter by pushing downwards through the slot in the back cage.
CAUTION: Risk of Abrasion. Do not pull the filter downwards from the bottom. The condenser has sharp surfaces.
CAUTION:
- Condensers should be cleaned at least every six months; more often if the laboratory area is dusty. In heavy traffic areas, condensers load with dirt more quickly. Failure to keep the condenser clean can result in equipment warm-up or erratic temperatures.
- Risk of Abrasion. Never clean around the condensers with your fingers. Some surfaces are sharp.
The condenser is located in the top rear of the machine compartment. To clean the condenser, complete the following steps:
- Disconnect the power.
- Remove the filter.
- Vacuum the condenser and clean up any loose dust.
- Replace the filter.
- Reconnect power.
You should defrost the freezer whenever there is significant frost buildup inside the cabinet.
Ice buildup in the freezer and around the control sensor could cause drift in unit operating temperature.
To defrost:
- Remove all products and place in another cold storage medium.
- Turn off the unit and allow the interior to warm to room temperature. Leave the door ajar to shorten defrost time.
- Dispose of the ice and wipe out any water standing in the bottom of the cabinet.
WARNING: DO NOT use heating devices such as heating guns and hair dryers to speed up the defrosting process. Fire or explosion of residual vapors may result!
CAUTION: When defrosting your freezer, never use sharp or heavy tools such as chisels or scrapers. Damage to the equipment can result. Let the ice melt enough so that it can be easily removed.
If there is freezer odor, wash the interior with a solution of baking soda and warm water. Clean the exterior with any common household cleaning solutions.
Periodically check the gaskets around the door for punctures or tears. Leaks are indicated by condensation or frost which form at the point of gasket failure. Make sure that the cabinet is level.
Keep the door gaskets clean and frost free by wiping gently with a soft cloth.
To check the door seal, complete the following steps:
- Open the door.
- Insert a strip of paper (a couple of inches wide) between the door gasket and the cabinet flange and close the door.
- Slowly pull the paper strip from the outside. You should feel some resistance.
- Repeat this test at 4-inch intervals around the door. If the door does not seal properly, replace the gasket.
Have a certified technician replace the alarm battery every twelve months at most or when the alarm is active. The part number for a replacement batter is 322533H01.
If the unit is going to be stored in an off condition, allow the unit to warm up and dry out with the door open before moving into storage.
Troubleshooting
Alert
WARNING: Risk of Shock. Troubleshooting procedures involve working with high voltages which can cause injury or death. Troubleshooting should only be performed by trainer personnel.
Cause: Power supply.
Solution:
- Check that the cord is securely plugged in.
- Plug another appliances into the outlet to see if it is live.
- Check that the double pole circuit breaker located next to the power inlet is in "ON" position (i.e. "1" position). Try cycling to OFF position (i.e. "0" position) & then bring to ON position.
- Test the voltage and verify that it is correct for your unit.
- If the outlet is dead, check the circuit breaker or fuses.
- The unit should not be connected to a GFCI (Ground Fault Circuit Interrupter) protected outlet as it may be subject to nuisance tripping.
- Cause: Temperature control.
- Solution: Make sure that the control is set correctly.
- Cause: Condenser clogged.
- Solution: Make sure the condenser and filter are clean.
- Cause: Other causes.
- Solution: If the temperature control is set correctly, the condenser is clean, but temperature continues to fluctuate, call an authorized service representative.
Cause: 12V backup battery needs to be replaced.
Solution: Replace the battery. It is located on the top right hand side of the cabinet. Call an authorized service representative.
- Cause: Incorrect Perimeter Heater Duty Cycle.
- Solution: Increase the perimeter heater duty cycle.
- Cause: Gaps exist in unit port holes.
- Solution: Ensure all port holes in the cabinet top, sides, and back are sealed properly to prevent warm airflow into the cabinet. Seal any gaps.
- Cause: Door seal is broken.
- Solution: Verify nothing is placed through the door seal such as a sensor. Check the door seal following instructions.
Cause: Perimeter Heater is ON.
Solution: This is a normal function of the unit and is a result of the perimeter heater to reduce condensation.
- Cause: Door is open.
- Solution: Make sure the door is completely closed.
- Cause: Door seal.
- Solution: Check the door seal.
- Cause: Warm product recently loaded in unit.
- Solution: Allow ample time to recover from loading warm product.
- Cause: Power supply.
- Solution: Check for proper voltage to the unit. If there is not voltage to the unit, call an electrician.
- Cause: Setpoints need to be adjusted.
- Solution: Adjust the setpoint.
Cause: Invalid Algorithm.
Solution: Check to ensure the model type is set correctly to service mode.
Cause: Control probe failure.
Solution: Check for loose probe connector.
Cause: Ambient probe failure.
Solution: Check for loose probe connector. Replace ambient probe.
Cause: Compressor Run Time High.
Solution: The compressor is working harder to overcome the ice on the unit walls and may start to thermally fail. Defrost the unit.
Cause: Upper bottle probe failure.
Solution: Check for loose probe connector. Replace upper bottle probe.
Cause: Lost communication.
Solution: Call customer service