PEUGEOT BOXER 2018 Handbook page 186

Special features
Troubleshooting
Symptoms
The hydraulic unit does not operate.
Unit very noisy, body rises slowly.
New unit very noisy, body rises quickly.
The ram goes down on its own.
The ram does not go down.
The unit operates but does not
generate pressure.
The hydraulic unit does not operate.
The control unit does not operate.
Emulsion in the reservoir.
Fluid discharged from the breather.
The fuse blows while lowering.
184
Electrical Hydraulic
X Power supply harness and relay.
X Control harness (control unit).
X Circuit breaker.
X Pick-up strainer blocked or squashed at the bottom of the reservoir.
X Pump alignment, change the unit.
X Return valve squashed or jammed.
Yes, check the valve slider and bleed.
X
Refer to the "Maintenance" section.
X No, check the return valve winding and electrical connections.
X No, replace the solenoid.
X No, check the alignment of the ram.
Valve slider jammed if no solenoid on the unit.
X
Refer to the "Maintenance" section.
X Pressure relief, adjustment, cleanliness.
X Pump seal failed.
X Motor/pump coupling.
X Pump loose on its bracket.
X Solenoid jammed, replace it or tighten the nut behind the strainer.
X Check the connections and contacts.
X Return pipe incorrectly fitted.
X Fluid level too low.
X Too much fluid.
Breather diaphragm tolerance a little wide, to be replaced.
X
Only valid for UD2386 units.
X Replace the return valve winding.
Verification/Check