GILES GBF-70 - On-Board Oil Filtration Problems

67
Troubleshooting
GBF-70 Fryer
6.02 On-Board Oil Filtration Problems
Problem Probable Cause Corrective Action
Cook vat does not drain.
A. Excessive crumbs or cooking residue
clogging drain.
Use provided round‐bristle brush to clear
drain.
Oil does not circulate or return to refill
vat when filtering.
A. Oil is too cold to pump.
Must manually remove thickened oil
from filter pan.
B. Filter pan is packed with excessive
cooking residue, preventing pump
from drawing.
Manually remove oil, clean filter pan &
refresh filter media.
C. Filter pan assembled incorrectly.
Check that filter pan is assembled
properly.
D. Air leaking into system plumbing
(hoses, fittings, etc.)
Check that filter pan hose connections
are secure.
E. Filter pump is clogged, or damaged. Call for service.
F. Filter pump motor has overheated &
tripped the internal thermal overload
safety shut‐off.
Allow pump to cool for about 45 mins to
auto‐reset overload safety, then retry. If
this fails or continues happening, call for
service.
Oil doesn’t circulate or return to vat
for refilling when filtering.
A. OIL RETURN valve inside cabinet is in
the [CLOSE] position. Pump shutdown
due to high pressure.
Move valve to the [OPEN] position.
Pump should start after pressure is
relieved.
B. Pump switch on control panel has
failed.
Call for service.
Waste oil will not discharge through
connected hose.
A. OIL WAND valve inside cabinet is in
the [CLOSE] position. Pump shutdown
due to high pressure.
Move valve to the [OPEN] position.
Pump should start after pressure is
relieved. Be sure wand end is securely
placed in disposal container.
B. Discharge hose is improperly
connected at coupling.
Check connection and retry.
Fryer connected to bulk waste oil
handling system:
Waste oil will not pump from filter
pan to collection tank.
A. WASTE OIL valve inside cabinet is in
the [CLOSE] position. Pump shutdown
due to high pressure.
Move valve to the [OPEN] position.
Pump should start after pressure is
relieved.
B. Oil line to collection tank is clogged.
Pump shutdown due to high pressure.
Call the system dealer for service.
C. Bulk collection tank may be full.
Call waste oil collection company for
pick‐up service.