Fri-Jado BS10i, Руководство по обслуживанию

Страница: 37 / 88

TROUBLE SHOOTING
Page 37 Page 37
Service Manual Bake Star intelligent
PKII
form 9123665 rev. 06/2013
Description of
part / function Symptoms Possible cause Action
Heating
Heaters and contactors
Unit does not reach the
adjusted temperature.
Cooking takes more time.
Uneven cooking Heating element defect.
Wire loose Check heating element and
wiring.
Contactor contacts fail to
make contact. Replace contactor
Contactor fails. Check wiring and board.
Refer to chapter “electrical
tests.
Product overcooked,
Uneven cooking Contactor hangs (contacts
stick together) Replace contactor
Uneven cooking
Contacts fail to make
contact Replace contactor
Contactor fails. Check wiring and board.
Refer to chapter “electrical
tests.
Hot air flow
Blowers
Bad cooking result
Uneven cooking
Vibrating and/or squeaking
noise.
Blower rotates too slow.
Refer to the alinea “trouble
shooting on the blowers”
in the chapter “electrical
tests”
Blower(s) blocked by
object. Remove object.
Blower(s) defect. Check coil resistance.
Check coil insulation.
Check bearing.
Exchange blower.
Capacitor(s) defect.
Wiring or blower contac-
tor problem.
Blowers operate normal for
45 seconds and then stop
for 45 seconds.
Refer to the alinea “trouble
shooting on the blowers”
in the chapter “electrical
tests”
Broken blower Unplug a blower during the
time that the blowers stop
and check if the other blo-
wers start up. If yes, then the
broken blower is unplugged.
If no, then try with another
blower.
It is of course also possible
to measure each blower
with an insulation tester (on
500V=).
Very occasional the (only)
double pole relay on the
fan board is broken. Replace Fan board and
upgrade systemsoftware if
applicable
.
Blower speed is not ok
Refer to the alinea “trouble
shooting on the blowers”
in the chapter “electrical
tests”
Relais on Fan board bro-
ken Check voltage over the blo-
wers (grey and black wire)
while running and cross re-
ference with the table in this
manual. If found incorrect,
replace Fan board, Capaci-
tor(s) or blower.
“speed”capacitors of blo-
wers broken.
Blower broken