Troubleshooting - Husqvarna P 535HX Operator's Manual

3. Loosen the 2 screws to the air filter holder. Put the
air filter holder and the air filter to the side.
4. Remove the negative cable from the battery.

Troubleshooting

If you cannot find a solution to your problems in this
manual, speak to your Husqvarna service agent.
Problem
You can start the product, but
you cannot operate it.
The starter motor does not turn
the engine.
The engine does not start when
the starter motor turns the en-
gine.
60
Troubleshooting
Cause
The temperature in the 48 V batteries is less than 0 °C/32 °F.
The main switch is in off position.
The PTO button is engaged.
The parking brake is not applied. Refer to
brake on page 34 .
The main fuse is blown. Refer to
The power key is defective.
The connection between the cable and the battery is bad.
The battery is too weak. Refer to
The starter motor is defective.
The OPC sensor is defective or the operator is not in the seat.
There is no fuel in the fuel tank. Refer to
The fuel filter is clogged.
Preheating is too short or defective.
There is air in the fuel system.
No fuel enters the fuel injectors.
The engine is defective.
5. Remove the positive cable from the battery.
6. Use a standard battery charger to charge the
battery.
7. Install the cables and air filter holder in opposite
sequence.
To replace the 12 V battery
1. Disconnect the battery. Refer to
battery on page 59 .
2. Remove the 2 screws on the battery holder.
3. Lift the battery holder and remove the battery.
4. Replace the battery with a battery of the same type
and voltage.
5. Install the battery, battery holder and air filter in the
opposite sequence.
To apply and release the parking
Fuse overview on page 6 .
To replace the 12 V battery on page 60 .
To fill fuel on page 32 .
To charge the 12 V
1591 - 005 - 20.05.2021