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Error Codes
Error codes may be encountered if either the controller or the display case is malfunctioning. The following
is a list of error codes that may be encountered.
Table 2 - Error Codes and Resolutions
Code
Description
Cause
Resolution
E0
Temperature probe
error
Probe signal is interrupted or
short-circuited
1.
Check to ensure probe wires and quick
disconnect are secure in control.
2.
Check probe resistance to table below. If 0
resistance is present check wiring insulation. If
infinite resistance is present check for breaks in
wiring (meter will likely read overload or very
high in the mega-ohm range).
3.
Ensure that probes are wired per the wiring
diagram provided.
4.
Replace probe if other remedies fail, or if probe
resistance deviates from “Error! Reference
source not found.” Error! Reference source
not found.
E1
Defrost probe error
See E0
EE
Unit parameter
reading error
Operating conditions
1.
Remedy abnormal operating conditions. The
control is rated to operate in a range of 14 to
122°F (-10 to 50°C) and less than 90%RH non-
condensing.
2.
Replace control if problem persists.
EF
Operating parameter
reading error
See EE
Table 3 - Temperature Probe Common Resistance Chart
Probe Temp
Maximum Resistance [
Ω
]
Normal Resistance [
Ω
]
Minimum Resistance [
Ω
]
32°F (0°C)
27.83
27.28
26.74
77°F (25°C)
10.1
10
9.9
212°F (100°C)
1
0.97
0.94
