Frymaster FPGL330CA - Probe Resistance Chart; ATO (Automatic Top-Off) Service Procedures; Ato

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1.12 Probe Resistance Chart
Probe Resistance Chart
For use with OCF30™ Series fryers manufactured with Minco Thermistor probes only.
F OHMS C F OHMS C F OHMS C F OHMS C F OHMS C
60 1059 16 130 1204 54 200 1350 93 270 1493 132 340 1634 171
65 1070 18 135 1216 57 205 1361 96 275 1503 135 345 1644 174
70 1080 21 140 1226 60 210 1371 99 280 1514 138 350 1654 177
75 1091 24 145 1237 63 215 1381 102 285 1524 141 355 1664 179
80 1101 27 150 1247 66 220 1391 104 290 1534 143 360 1674 182
85 1112 29 155 1258 68 225 1402 107 295 1544 146 365 1684 185
90 1122 32 160 1268 71 230 1412 110 300 1554 149 370 1694 188
95 1133 35 165 1278 74 235 1422 113 305 1564 152 375 1704 191
100 1143 38 170 1289 77 240 1432 116 310 1574 154 380 1714 193
105 1154 41 175 1299 79 245 1442 118 315 1584 157 385 1724 196
110 1164 43 180 1309 82 250 1453 121 320 1594 160 390 1734 199
115 1174 46 185 1320 85 255 1463 124 325 1604 163 395 1744 202
120 1185 49 190 1330 88 260 1473 127 330 1614 166 400 1754 204
125 1195 52 195 1340 91 265 1483 129 335 1624 168 405 1764 207
1.13 ATO (Automatic Top-Off) Service Procedures
The automatic top-off system is activated when the oil level falls below a sensor in the rear of the frypot. A
signal is sent to the ATO board to engage the solenoid to the frypot and turn on the ATO pump. The pump
draws oil from the JIB (Jug In Box) to a port in the rear of the frypot. Once the oil level has satisfied the
sensor, the pump and solenoid turn off.
The ATO board is located inside the box, behind the JIB (see Figure 1). The
power for the ATO board is supplied from the transformer box. The power
passes through the transformer inside the ATO box to the board.
Figure 1
ATO Box
1.13.1 ATO (Automatic Top-Off) Troubleshooting
Problem Probable Causes Corrective Action
Controller displays
TOPOFF OIL
EMPTY/CONFIRM
Top off system out of oil.
Fill top off system with oil and press the 
(CONFIRM) button.
No power to ATO
board
A. J5 connection unplugged
B. Fuse blown.
C. Transformer malfunction
A. Check to ensure J5 on front of ATO
board is fully locked into connector.
B. Ensure fuse located on right side of
ATO box is not blown.
C. Check that proper voltage is present
at transformer. See table in section
1.13.2.
Incorrect vat tops off.
A. Wired incorrectly.
B. Flexlines connected to wrong vat.
A. Check wiring.
B. Switch flexlines to correct vat.
One vat doesn’t top off.
A. RTD, solenoid issue, wire connection or
ATO board issue.
A. Check RTD, solenoid, wire
connections or ATO board.
Frypot tops off cold.
Incorrect setpoint Ensure setpoint is correct.