Systems and Equipment - 182 JT100/JT100 All Terrain Operator’s Manual
Diagnostic Codes
153 IROT JOG POT no continuity to manual job
pot for inner rotation
drive is blocked essential
154 DR FLUID POT drilling fluid potentiometer
out of range
code is stored essential
155 ROT SET POT no continuity to variable
rotation speed pot
code is stored non-
essential
158 FAN POSN SEN no information from engine
fan pulse pickup sensor
code is stored and fan is
controlled without feedback
non-
essential
166 REAR STOP SW no continuity to the rear stop
switch
add pipe and remove pipe
are blocked
non-
essential
213 FLD PRES SENS drilling fluid pressure sensor
out of range
code is stored non-
essential
214 INNER ROT POS no continuity to inner
rotation position sensor
dither compensation is
blocked
non-
essential
221 LOW BATTERY system voltage is below
12.5V
code is stored non-
essential
222 INNER ROT SPD inner rotation position
sensor not changing
dither compensation is
blocked
non-
essential
234 ADDP/REMP SW add pipe and remove pipe
inputs both on
add pipe and remove pipe
are blocked
non-
essential
235 TH F/R HSW front and rear home switch
inputs both on
add pipe and remove pipe
are blocked
non-
essential
241 SHUTTLE RESP shuttles not responding
correctly
add pipe or remove pipe is
aborted and code is stored
non-
essential
253 A2D SYNCH questionable voltage
reading on controller circuit
board
code is stored non-
essential
254 SETUP TABLE error reading setup table
information
add pipe and remove pipe
are blocked
essential
255 MISC CODE undefinable diagnostic code
reported
code is stored non-
essential
IMPORTANT: All ESID diagnostic codes begin with “dc,” followed by the three digit code number. For
example, code 502 will appear as dc502. All ESID codes show on the face of the ESID only.
Code Display Condition Result Severity
502 2.5V REF 2.5V reference error in ESID internal reference failure,
ESID may not give valid
readings
Code Display Condition Result Severity
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