723–0018 /02 F70 95
Code E4000400: “Radiator Fan 1 speed too low” (Error)
Situation Solution
Blocked fan Remove the fan from the radiator assembly and verify if the fan is not
blocked. To access the fan, see service procedure
Wiring issue Check the connection towards the thermal hub board. If problem persists,
replace the fan.
Fan end of life. Replace the fan. .
Code E4000500: “Radiator Fan 2 speed too low” (Error)
Situation Solution
Blocked fan Remove the fan from the radiator assembly and verify if the fan is not
blocked. To access the fan, see service procedure .
Wiring issue Check the connection towards the thermal hub board. If problem persists,
replace the fan.
Fan end of life. Replace the fan. See service chapter
Code E4000600: “Radiator Fan 3 speed too low” (Error)
Situation Solution
Blocked fan Remove the fan from the radiator assembly and verify if the fan is not
blocked.
Wiring issue Check the connection towards the thermal hub board. If problem persists,
replace the fan.
Fan end of life. Replace the fan.
Code E4000700: “Radiator Fan 4 speed too low” (Error)
Situation Solution
Blocked fan Remove the fan from the radiator assembly and verify if the fan is not
blocked. .
Wiring issue Check the connection towards the thermal hub board. If problem persists,
replace the fan.
Fan end of life. Replace the fan.
Code E4000900: “Peltier Element temperature too low”
Situation Solution
Peltier element cooling red
laser part not functioning
Check the wiring towards the thermal hub.
Code E7000001: “DMD temperature exceeded” (Error)
Situation Solution
DMD temperature exceeded
due to DMD cooling system
malfunction.
• Check if the cooling circuit of the Light Processor is connected with the
pump and heat exchanger.
• Check if the 4 screws that hold the cold plate to the back of the DMD
board, are tightened.
Troubleshooting
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