27
XIII. TROUBLE SHOOTING ( Continued)
CONDITIONS
POSSIBLE SOLUTIONS
SYSTEM/CONTROL ERROR
5.
Proceed in program “85” going thru the program to confirm the
DEFROST SENSOR FAILURE
unit is set up to meet the requirements of the unit. (e.g., Set up for
(Continued)
a RBC100 or RBC200)
SYSTEM/CONTROL ERROR
1.
Check all Food probes that are selected at this time.
CURRENT PROBE IS BAD
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.
SYSTEM/CONTROL ERROR
1.
No Food Probes were plugged into the sockets.
NO PRODUCT PROBES
2.
With the Food Probes not inserted into the sockets the Customer
CHECK THE FOOD PROBES
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.
CONTROL IS STUCK IN THE
1.
Check to be sure the customer has Thermal Paper in the paper
FIRST SCREEN
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.
MENU 75 DIAGNOSTAIC
ERRORS:
1.
Printer has had a problem (either label or Record)
Printer
Probe
2.
A Probe has stopped reading.
Power Interrupted
3.
Power has been Interrupted.
Over Temp
4.
Box temperature has exceeded 160 F
Def. Heater
5.
Defrost Heaters did not make temp. (Either one or both)
Flash Memory
6.
Memory has been reset manually (V1.08 or earlier)
PRODUCT DETECTED!
1.
Check Food Probes!
STARTING HOLDING MODE
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.
MAINTENANCE COIL IS
1.
Check the Maintenance compressor for proper cycling on and off.
ICED UP
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.
