Fri-Jado Deli Multisserie, Service Manual

Page: 82 / 132

TROUBLE SHOOTING
Page 82
Service Manual Deli Multisserie form 9123667 rev. 20220317
Description of part Symptoms Possible cause Action
Contactor Product overcooked
Uneven cooking
Cooking takes more time
Product not ready in time Contactor hangs (contacts
stick together)
Contacts do not make
contact
Contactor does not func-
tion
Controller problem. Check contactor.
Check controller (output
test)
Blower Cooking takes more time
Bad cooking result
Uneven cooking
Vibrating and/or squeaking
noise.
Blower rotates too slow.
Blower shaft stuck by dirt
or broken shaft sealring.
Blower(s) defect.
Capacitor defect
Wiring or controller pro-
blem.
Transformer broken or
wrong connected. Fix fanblade
Check adjustment.
Check blower shaft.
Check coil resistance.
Check coil insulation.
Check bearing
Check adjustment.
Check capacitor
Check transformer.
Vane switch Product not ready in time.
Heating elements do not
switch on. Micro switch stays open.
Wiring loose.
Wing of vaneswitch stuck.
Blower rotates too slow. Remove dirt and/or ob-
stacles from wing. Check
wiring and microswitch.
Check voltage on venti-
lator.
Security thermostat swit-
ched off.
Fire behind ventilator plate. Wing of vane switch
stuck.
Microswitch stays closed.
Rotor Rotor does not rotate Motor defect.
Chain broken or derailed.
Bearing defect.
Capacitor defect.
Rotor support comes
loose. Check these items.
Rotor switch Rotor does not stop, or does
not stop in right position. Detector switch rotor
defect Replace (opto)switch
Positioning disc displaced Check adjustment and
fix it.
Core sensor Baking program never ends
and product overcooked. Core Sensor defect (resi-
stance too low) Replace sensor if wiring
is ok.
Baking program ends too
soon Core sensor defect (resi-
stance too high). Replace sensor if wiring
is ok.
Customer starts program
while core sensor is still
hot. Give instructions how to
use.