Karmann-Mobil DAVIS 540 2023, Operating Manual

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Troubleshooting
EN 122
The following is a list of potentially occurring problems (P) and the possible causes.
15.1 Fresh water system
(P) N
O WATER COMES OUT OF THE TAPS
.
Leave the tap in the bathroom and kitchen open for a few seconds to allow air to escape, which may have
become trapped in the water lines.
→ The fresh water tank is empty.
→ The fresh water pump is not switched on. (The symbol on the control panel is off.)
→ The filter of the fresh water pump is clogged.
→ The drain valves are open.
→ The boiler is empty.
→ The fuse for the fresh water pump has blown. (The cause has to be determined.*)
(P) T
HE WATER DOES NOT DRAIN FROM THE KITCHEN SINK
,
WASH BASIN OR SHOWER
.
→ The waste water tank is full.
→ The trap is blocked.
(P) W
ATER RUNS FROM UNDERNEATH THE VEHICLE
.
→ The fresh water tank is too full. Wait one minute until the excess water has drained.
→ The drain valve of the fresh water tank is open.
→ The waste water tank is full.
→ The drain valve of the waste water tank is open.
→ The drain valve of the boiler is open.
15.2 Electrical system
(P) O
NE OR SEVERAL ELECTRICAL APPLIANCES ARE NOT WORKING
.
→ The appliances are not in the “ON” position.
→ The battery disconnect switch interrupts the current flow and has to be plugged in.
→ The power supply on the control panel is not activated.
→ The living room battery B2 is discharged. (See item 7.12 “ Charging the living room battery B2 ”.)
→ The 230 V power supply is not established.
(See item 7.6
“ Establishing the 230 V power supply ”.)
→ The RCD was triggered. (The cause has to be determined.*)
→ The fuse for the corresponding appliance has blown. (The cause has to be determined.*)
(P) T
HE INTERIOR LIGHTING IS NOT WORKING
.
→ The power supply on the control panel is not activated. (The “interior lighting” symbol on the contr ol
panel does not light up.)
→ The light unit is switched off or defective.*
→ The fuse for the interior lighting has blown. (The cause has to be determined.*)
(P) T
HE EXTERIOR LIGHTING
(
OPTIONAL
)
IS NOT WORKING
.
→ The power supply on the control panel is not activated. (The “exterior lighting” symbol on the
control panel does not light up.)
→ The light unit is defective.*
→ The fuse for the exterior lighting has blown. (The cause has to be determined.*)
(P) T
HE
230 V
SOCKET IS NOT WORKING
.
→ The 230 V power supply is not established.
(See item 7.6
“ Establishing the 230 V power supply ”.)
→ The RCD was triggered. (The cause has to be determined.*)