Caterpillar INLET heater ON

[Saad26]

The machine looks normal now, thank you for you help.
However, do you have any clue what's the problem with the INTAKE air heater? Why it stays on?

 

[Saad26]

BTW, the intake air heater on message is gone now.

 

[Nige]

However, do you have any clue what's the problem with the INTAKE air heater? Why it stays on?

The signal wires (which you disconnected) come from the engine ECM. It will need a bit of investigation to find out what input signal(s) to the ECM trigger that output to the intake heater relay. I would guess it is something related to either air intake temperature or engine coolant temperature, or even both. Right now - dunno.

 

[Saad26]

Is it ok to keep it disconnected then? It is warm here now and there is no need for the heater...

 

[heymccall]

We had 3 RMX 328DLCR machines. On only one of them (the earliest), we would get the same fault. If you shut off and restarted, it was fine the rest of the day.
Changed the relay, intake temp sensor, coolant sensor, had software updated at least 3 times over the life of the machine.
Never did find a cure, but, it was definitely the intake heater staying on.

 

[Nige]

Is it ok to keep it disconnected then? It is warm here now and there is no need for the heater...

You could do. Then when the weather turns cold you could plug it back in if necessary.