Alarm Messages - Unox ChefTop 5 Series Installation And Maintenance Manual

2. Control Board – Alarms
OVEN

- Alarm messages:

When a condition arises which
prevents the appliance
operating at all, an ALARM signal is
displayed and the appliance must be
switched to its STOP status.
- Oven Alarms
(Series 5)
DISPLAY DESCRIPTION
Motor thermal
AF01
protection Alarm
from
Safety thermostat
AF02
Alarm
Temperature probes
AF03
Alarm
Loss of communication
AF04 control card - power
card Alarm
Loss of communication
AF05
with GAS card Alarm
Gas exhaust smokes
AF06
temperature Alarm
Wrong settings of
indispensable
AF10
parameters on the
EEPROM
EFFECT POSSIBLE CAUSES
Thermal protection intervention
Disconnected wires
OVEN STOP Damaged power card
Motor's overheating
Chamber temperature overheating
(over 320°C)
OVEN STOP
Safety thermostat wires
disconnected
Damaged power card
Both temperature probes are
OVEN STOP damaged or not connected
Damaged power card
Power card - control card cable
interrupted or not connected
properly
Damaged control card
OVEN STOP
Damaged power card
High electrical disturbances
(magnetic field)
Net cable gas card - power card oven
disconnected or interrupted
Damaged gas card
OVEN STOP Broken gas card fuse
Damaged power card
NGS parameter of oven power card
set as 1
Damaged control card
Outlet gas exhaust temperature over
620°C
OVEN STOP
Gas exhaust probe damaged
Gas card damaged
Damaged power card
OVEN STOP Wrong settings on EEPROM
parameters
78
SOLUTIONS
Replace motor
Check motor wires
Replace power card
Oven installation and positon
checks
Check possible causes (contactors
melting, wrong measuring
chamber )
Replace safety thermostat
Replace power card
Connect or replace both
temperature probes
Replace power card
Check and/or replace the cable
which connect the control panel to
the power card
Replace control card
Replace power card
Reset the main power supply to
the oven
Check and/or replace the cable
which connect the gas card to the
power card
Replace gas card
Replace gas card fuse
Replace power card
Set the NGS parameter as 0
Replace control card
Check possible causes
Replace gas exhaust probe
Replace gas card
Replace power card
Reset control card parameter
(LMP)