Traulsen SmartChill RBC50 Service Manual page 28

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XIII. TROUBLE SHOOTING ( Continued)
CONDITIONS
SYSTEM/CONTROL ERROR
DEFROST SENSOR FAILURE
(Continued)
SYSTEM/CONTROL ERROR
CURRENT PROBE IS BAD
SYSTEM/CONTROL ERROR
NO PRODUCT PROBES
CHECK THE FOOD PROBES
CONTROL IS STUCK IN THE
FIRST SCREEN
MENU 75 DIAGNOSTAIC
ERRORS:
Printer
Probe
Power Interrupted
Over Temp
Def. Heater
Flash Memory
PRODUCT DETECTED!
STARTING HOLDING MODE
MAINTENANCE COIL IS
ICED UP
POSSIBLE SOLUTIONS
5. Proceed in program "85" going thru the program to confirm the
unit is set up to meet the requirements of the unit. (e.g., Set up for
a RBC100 or RBC200)
1. Check all Food probes that are selected at this time.
2. Check for moisture on top of the Food Probe Harness connections
located in the ceiling and inside the box.
3. Check for proper sealing of the opening thru the Exterior top of
the cabinet where the Food Probe Harness passes thru.
4. Check the wire connections on top of the Food Probe Harness for
breaks in solder joints or corrosion on the joints.
1. No Food Probes were plugged into the sockets.
2. With the Food Probes not inserted into the sockets the Customer
selects the "By Temperature" mode.
3. With the Food Probes plugged into the sockets & inserted into the
product, all three food probes could have an open circuit.
1. Check to be sure the customer has Thermal Paper in the paper
printer.
2. Check the version of the control (a version 1.01 or 1.04 can allow
this to occur.) if no paper is in the system.
1. Printer has had a problem (either label or Record)
2. A Probe has stopped reading.
3. Power has been Interrupted.
4. Box temperature has exceeded 160 F
5. Defrost Heaters did not make temp. (Either one or both)
6. Memory has been reset manually (V1.08 or earlier)
1. Check Food Probes!
2. Air temp has exceeded 70F for 10 minutes.
3. An assumption has been made, that product is in the box, turn on
holding cycle.
1. Check the Maintenance compressor for proper cycling on and off.
This may be caused by the contacts on the relay sticking closed.
2. Check to see if the customer did not clear all of the probes upon
completion and then starting next batch.
3. This will result in the unit not being allowed to go into a defrost
cycle until the coils ice up.
4. Go thru the steps to remove all products and allow the unit to go
into a defrost cycle.
5. Should the Maintenance Compressor not shut off look on top of
unit to see if the contacts might be stuck closed.
6. If the relay is functioning correctly you will need to go to the
evaporator and check the two coil sensors. They should not be
reading high temperature as this will result in the compressor
running excessively long and freezing the evaporator up.
7. The refrigeration system could be causing the coil to ice up if not
functioning correctly.
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