Probe Resistance Chart; Manual Top-Off And Filtration Service Procedures; Fib Troubleshooting - Frymaster FilterQuick FQG80T Service Manual

1.18

Probe Resistance Chart

For use with FQG80T/100T/120T fryers manufactured with Minco RTD probes only.
F OHMS C
60 1059 16 130
65 1070 18 135
70 1080 21 140
75 1091 24 145
80 1101 27 150
85 1112 29 155
90 1122 32 160
95 1133 35 165
100 1143 38 170
105 1154 41 175
110 1164 43 180
115 1174 46 185
120 1185 49 190
125 1195 52 195

1.19 Manual Top-Off and Filtration Service Procedures

The fryer uses an ATO probe to detect low shortening level. When the shortening falls below the probe, the controller
displays LOW OIL DETECTED, ADD OIL FROM THE NEXT FRYPOT or ADD FRESH SHORTENING. Once the shortening is
manually added, press the check mark.
The FIB (Filter Interface Board) also oversees and controls filtration. It receives and sends data over the CAN (Controller
Area Network) to and from various sensors, boards and controllers. It activates the filtration cycle sending information to
the VIB (Valve Interface Board) boards controlling when actuators should open and close.
The FIB board is located inside the control box. The power for the FIB board and the filter pump relay is supplied from the
24VDC power supply from the transformer box. The 24VDC power supply also provides power, which passes through the
FIB board to the VIB board, to the rotary actuators. The power for the VIB board microprocessor is supplied from the SIB.

1.19.1 FIB Troubleshooting

Problem
No power to FIB board
FQ4000 displays E29 TOP
OFF PROBE FAILURE – CALL
SERVICE
Probe Resistance Chart
F OHMS C F
1204 54 200
1216 57 205
1226 60 210
1237 63 215
1247 66 220
1258 68 225
1268 71 230
1278 74 235
1289 77 240
1299 79 245
1309 82 250
1320 85 255
1330 88 260
1340 91 265
Probable Causes
A. J1 connection unplugged.
B. Power supply malfunction.
A. Shorted or Open ATO RTD probe
B. Bad Connection
OHMS C F OHMS
1350 93 270 1493
1361 96 275 1503
1371 99 280 1514
1381 102 285 1524
1391 104 290 1534
1402 107 295 1544
1412 110 300 1554
1422 113 305 1564
1432 116 310 1574
1442 118 315 1584
1453 121 320 1594
1463 124 325 1604
1473 127 330 1614
1483 129 335 1624
A. Check to ensure J1 on front of FIB board is fully locked
into connector.
B. Check that proper voltage is present at the power
supply. See table in section 1.19.4.
A. With ATO probe covered in oil, press the "?" button.
Press the down arrow. Press Software Version. Press
the down arrow and ensure actual vat temperature
and ATO RTD temperature are relatively close. If
temperature reading is missing, unplug the ATO probe
from the SIB board and check ATO probe resistance. If
probe is bad, replace the probe.
B. Ensure ATO probe is connected properly to SIB board.
Ensure that the connector is terminated properly.
1-28
C F OHMS
132 340 1634
135 345 1644
138 350 1654
141 355 1664
143 360 1674
146 365 1684
149 370 1694
152 375 1704
154 380 1714
157 385 1724
160 390 1734
163 395 1744
166 400 1754
168 405 1764
Corrective Action
C
171
174
177
179
182
185
188
191
193
196
199
202
204
207