Critical Temperature In The Electronics (Mmi_Id50) - Henny Penny FlexFusion FPG-221 Service Instructions Manual

Fault messages & troubleshooting

Critical temperature in the electronics (MMI_ID50)

Description
The temperature sensor on the control board is measuring a
temperature of >75°C (167°F). The unit is no longer operational until
it cools down.
Troubleshooting
With software version 1.71, the temperature threshold was increased from 70°C (158°F) to 75°C
(175°F). If necessary, update the software.
Check air intake area of fan and clean if necessary.
Replace communication cable between motor control and motor for test purposes and perform test
run. Switch unit on "I." Error eliminated?
No
Check that cooling fan is functioning properly. To do so, use the relay test in the Service menu to
switch on the cooling fan. Is the fan functioning?
Yes
No
Measure the voltage at the fan. Voltage Check surroundings and ambient
present? temperature. See also installation
instructions.
Yes No
Relay on control board defective. Replace
Cooling fan defective.
control board.
Service-instructions 105