Primus RF6 Programming Manual page 115

FAILURE 24: DEFECTIVE LEVEL SENSOR
If the level sensor is broken then fault 24 will be displayed. The fault is only generated when the machine is in
standby mode and no program is active.
The fault can only be erased by switching off and on the power.
DIAGNOSE:
1. Check the level sensor visually
2. If the fault is persistent
FAILURE 25: DEFECTIVE TEMPERATURE SENSOR
When the temperature sensor is broken then fault 25 will be displayed. The fault is only generated when the
machine is in standby mode and no program is active.
The fault can only be erased by switching off and on the power. If the fault is still active after switching on the
power : fault 25 will be activated again.
DIAGNOSE:
1. Check if the temperature sensor is
connected on the electronic Board.
2. Check the temperature sensor
3. Measure the resistance of the sensor
4. Check if the earth wire is at the middle
position of the connector
5. Check the electronic board visually
6. If the fault is persistent
FAILURE 26: UNDEFINED FREQUENCY INVERTER ERROR CODE
This fault should never occur. Inform the manufacturer.
FAILURE 27: COMMUNICATION FAULT INVERTER
This fault will only occur when there is no communication between the electronic timer and the inverter.
The electronic timer is sending requests to the inverter, and the inverter is sending answers to the timer.
If the electronic timer is not receiving the answers within 5 seconds then fault 27 will be displayed.
The baud rate for the A024S/A044-EC Mitsubishi inverters is 9600. ( = TTL communication)
The baud rate for the E500 series Mitsubishi inverters is 19200. ( = RS485 communication)
Error 27 will occur if at the Configuration menu as Supply Voltage:
– TTL has been selected for the E500 series. ( = wrong)
– a Supply Voltage Range has been selected for the A024S/A044-EC series. ( = wrong)
Cause : the Full Control Wash Computer and the Inverter have to communicate with the same baud rate.
DIAGNOSE:
1.For a new inverter or timer :
Check if the right machine type and Washing
machine power supply have been selected.
2. Check if the door is closed and locked
3. Check if the inverter is energized
100962 G PUBLICATION DATE 24 JUN 2008.DOC
If you see some damage: replace the electronic board
Replace the electronic board (be sure that there is no
drain problem)
The Female connector must be connected with the
Male connector T of the electronic board.
If the temperature sensor is broken: replace the
temperature sensor
If the resistance is not OK: replace the temperature
sensor
If the earth wire is not at the middle position: put the
earth wire in the middle position of connector T
If you see some damage : replace the electronic board
Replace the electronic board
Be sure that the problem is related to the electronic
board and not to a defective temperature sensor
When the Inverter parameters are loaded at the
Configuration menu, make sure that you have selected
the right machine type and washing machine power
supply.
If the door is not closed then the inverter can not be
powered. Close the door.
If the door lock is broken, repair the door lock system
Measure the voltage at the input of the inverter
PROGRAMMING MANUAL 113