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14 Troubleshooting
226
B-MC - 12/18-2 - EHG-0016-01EN
Fault
Cause
Remedy
The electrically operated
entrance step cannot be
moved in or out
Fuse on the trans-
former/rectifier is defec-
tive
Replace fuse on the trans-
former/rectifier
No 230 V power supply in
spite of connection
230 V automatic circuit
breaker has triggered
Switch on 230 V automatic
circuit breaker
Starter or living area bat-
tery is not charged when
operated in 230 V mode
Jumbo flat fuse on the
starter or living area bat-
tery is defective
Replace jumbo flat fuse on
the starter or living area bat-
tery
No mains voltage
Switch on automatic circuit
breaker in the vehicle
Transformer/rectifier is
overheated
Ambient temperature too
high or transformer/rectifier
ventilation hindered
Too many appliances are
switched on
Switch off appliances that
are not required
Charger module in the
transformer/rectifier is
defective
Contact customer service
Living area battery is not
charged during vehicle
operation
Fuse on terminal D+ of
the alternator is defective
Replace fuse
Disconnector relay in the
transformer/rectifier is
defective
Contact customer service
12 V indicator lamp does
not light up
12 V power supply is
switched off
Switch 12 V power supply
on
Battery cut-off switch on
the transformer/rectifier is
switched off
Set battery cut-off switch to
on
Starter or living area bat-
tery is not charged
Charge the starter or living
area battery
Disconnector relay in the
transformer/rectifier is
defective
Contact customer service
Flat fuse on the living
area battery is defective
Replace flat fuse on the liv-
ing area battery
12 V power supply does
not work
12 V power supply is
switched off
Switch 12 V power supply
on
Battery
cut-off switch on
the transformer/rectifier is
switched off
Set battery cut-off switch to
on
Living area battery is dis-
charged
Charge the living area bat-
tery
Jumbo flat fuse on the liv-
ing area battery is defec-
tive
Replace jumbo flat fuse on
the living area battery
Disconnector relay in the
transformer/rectifier is
defective
Contact customer service
Summary of Contents for BMC 550
Page 2: ...Instruction manual 2 B MC 12 18 2 EHG 0016 01EN...
Page 8: ...Checklist before first journey of the vehicle 8 B MC 12 18 2 EHG 0016 01EN...
Page 12: ...1 Introduction 12 B MC 12 18 2 EHG 0016 01EN...
Page 20: ...2 Safety 20 B MC 12 18 2 EHG 0016 01EN...
Page 54: ...4 During the journey 54 B MC 12 18 2 EHG 0016 01EN...
Page 140: ...8 Electrical system 140 B MC 12 18 2 EHG 0016 01EN...
Page 172: ...9 Appliances 172 B MC 12 18 2 EHG 0016 01EN...
Page 186: ...10 Sanitary fittings 186 B MC 12 18 2 EHG 0016 01EN...
Page 202: ...11 Care 202 B MC 12 18 2 EHG 0016 01EN...
Page 224: ...13 Wheels and tyres 224 B MC 12 18 2 EHG 0016 01EN...
Page 240: ...16 Technical data 240 B MC 12 18 2 EHG 0016 01EN...
Page 242: ...17 Instructions for the service partner 242 B MC 12 18 2 EHG 0016 01EN...