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Bobcat T590 I3903 Error Code

I3903 Fault Code Meaning :

LLMI External Watchdog Default

I3903 Error Code

LLMI External Watchdog Default is the main cause of I3903 error.To solve I3903 locate and open the low-pressure valve, then attach the refrigerant to the valve and charge from there. Ensure you use the right refrigerant type and amount, as specified by a manufacturer. It is possible to overcharge the AC, so consider seeking help from a mechanic.

Bobcat T590 Photo

Tip For T590 Model

When the temperature is below -30 C (-20 F), hydrostatic oil must be warmed before starting. The hydrostatic system will not get enough oil at low temperatures and will be damaged. Park the machine in an area where the temperature will be above -18 C (0 F) if possible.

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