aF02 - SaFety tHerMoStat alarM
Picture
1
TEST 2
TEST 1
Do you have
electrical
continuity?
End
T
wer supply.
Disconnect P22 socket
of the contactor and test
the electrical continuity
between pin 4 and 5
that are those in
corrispondence of the
of
the
TSA
and TSR labels on
the
power board
with the multimeter
set to ohm
Measure the electrical
continuity of the cable
from the P22
socket to the safety
thermostat plug.
Meaure the continuity
PIN to PIN.
Reset the thermostat and
analyse the possible causes
such as oven installation,
external heating sources
and chamber probe 1 switched
with chamber probe 2,
contactors blocked,
power board damaged
Replace the safety
thermostat
Replace cable
Wait for the oven to
cooldown to the
room temperature
Do you have
the electrical
continuity?
Do you
have electrical
continuity
in the wiring?
Has the safety
thermostat triggered?
It triggers at
320°C (608°F)
End
AF02 safety
thermostat alarm
YES
YES
YES
NO
NO
NO
NO
NO
YES
YES
Does the alarm
persist?
Restore the cable
harness and test the
oven
Measure the
electrical
continuity of the
safety thermostat as
shown in the picture
Replace the power
board and send
to the UNOX service
department a picture
as shown below
OvEN
135
Содержание MINDMaps BAKERTOP
Страница 1: ...SERVICE MANUAL...
Страница 134: ...Figure 3 test Other visual checks 1 Cooling fan is running 2 Motors stuck by the shaft 3 External heat source OVEN 134...
Страница 138: ...OVEN Test to do Test 1 138...
Страница 139: ...OVEN Pt100 Temperature Probe Resistance table 139...
Страница 141: ...go to INDEX OVEN Test to do Light ON Light OFF Normal power board status AF04 power board status 141...
Страница 150: ...Test to do test 1 Measure the electrical conductivity of the micro switch OVEN 150...
Страница 155: ...163 OVEN Pt100 Temperature Probe Resistance table 155...
Страница 161: ...Test to do test 1Measurethemotorpowersupply from the power baord OVEN test 2Measure the RPM on the P20 socket 161...
Страница 166: ...OVEN test 1 Measure the power supply to the washing solenoid valve 166...
Страница 167: ...OVEN Low pressure status High pressure status Low pressure status High pressure status Test 2 Test 3 167...
Страница 189: ...OVEN Pt100 Temperature Probe Resistance table 189...
Страница 215: ...214...