HEBT-5V BUN TOASTER
12
P/N 1011112 Rev W 05/22
McDonald’s
Problem
Possible Cause
Corrective Action
Unit displays fault message:
“’A’
System Fail”.
Followed by a
graphic display. Power, Motor, ‘B’,
and ‘C’ lights are solid and Service
and ‘A’ lights are flashing.
SSR is stuck open causing platen ‘A’ to not
reach set point within 30 minutes.
Cycle power off and on if fault message
persist; contact your Maintenance person
or Authorized Service Agency for service.
Failed Platen ‘A’ Heater.
Failed Display Board
Failed I/O Board.
Loose wire or connection.
Failed thermocouple.
Unit displays fault message:
“’B’
System Fail”.
Followed by a
graphic display. Power, Motor, ‘A’,
and ‘C’ lights are solid and Service
and ‘B’ lights are flashing.
SSR is stuck open causing platen ‘B’ to not
reach set point within 30 minutes.
Cycle power off and on if fault message
persist; contact your Maintenance person
or Authorized Service Agency for service.
Failed Platen ‘B’ Heater.
Failed Display Board
Failed I/O Board.
Loose wire or connection.
Failed thermocouple.
Unit displays fault message:
“’C’
System Fail”.
Followed by a
graphic display. Power, Motor, ‘A’,
and ‘B’ lights are solid and Service
and ‘C’ lights are flashing.
SSR is stuck open causing platen ‘C’ to not
reach set point within 30 minutes.
Cycle power off and on if fault message
persist; contact your Maintenance person
or Authorized Service Agency for service.
Failed Platen ‘C’ Heater.
Failed Display Board
Failed I/O Board.
Failed thermocouple.
Loose wire or connection.
Unit displays fault message:
“’A’
Platen Low”.
Followed by a
graphic display. Power, Motor, ‘B’,
and ‘C’ lights are solid and Service
and ‘A’ lights are flashing.
SSR is stuck open causing platen ‘A’ tem
-
perature to decrease by 27° C (50° F) after
achieving set point.
Cycle power off and on if fault message
persist; contact your Maintenance person
or Authorized Service Agency for service.
Failed Platen ‘A’ Heater.
Failed Display Board
Failed I/O Board.
Loose wire or connection.
Failed thermocouple.
Unit displays fault message:
“’B’
Platen Low”.
Followed by a
graphic display. Power, Motor, ‘A’,
and ‘C’ lights are solid and Service
and ‘B’ lights are flashing.
SSR is stuck open causing platen ‘B’ tem
-
perature to decrease by 27° C (50° F) after
achieving set point.
Cycle power off and on if fault message
persist; contact your Maintenance person
or Authorized Service Agency for service.
Failed Platen ‘B’ Heater.
Failed Display Board
Failed I/O Board.
Loose wire or connection.
Failed thermocouple.
Troubleshooting (continued)
