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14 Troubleshooting
230
B-MC - 12/18-2 - EHG-0016-01EN
14.8 Heater/boiler
In the event of a defect contact the nearest customer service workshop of
the relevant appliance manufacturer. The list of addresses is enclosed with
the accompanying appliance documentation. Only authorised qualified per-
sonnel may repair the appliance.
14.8.1 Heater/boiler with CP plus digital operating unit
Fault
Cause
Remedy
Heater does not ignite
Temperature sensor on
operating unit or remote
sensor defective
Pull out plug on operating
unit. The heater then
works without thermostat.
Contact the customer ser-
vice as soon as possible
No display on the operat-
ing unit
Fuse on the trans-
former/rectifier is defective
Replace fuse on the trans-
former/rectifier
Fuse in the electronic con-
trol unit has been trig-
gered
Contact customer service
Living area battery defec-
tive
Charge or replace the liv-
ing area battery (or have it
charged or replaced)
Fault with error code is
displayed
See table "Fault search in-
struction"
See table "Fault search in-
struction"
Boiler
empties,
safety/drainage valve has
opened
Internal temperature be-
low 8 °C
Heat inside
Safety/drainage valve
cannot be closed
Temperature at
safety/drainage valve be-
low 8 °C
Heat inside
Fan wheel runs noisily or
not steadily
Fan wheel is soiled
Contact Truma service
department
Error
code
Cause
Rectification
Fault search instruction
# 17
Summer operation
with empty water con-
tainer
Switch off the device and allow it to cool
down. Fill the boiler with water
Warm air louvres blo-
cked
Check outlet openings
Air circulation suction
system blocked
Remove blocking of air circulation suction
system
# 18
Gas pressure regulator
iced up
Use regulator heater (defroster if availa-
ble)
Proportion of butane
gas in gas bottle too
high
Use propane gas (butane gas is unsuita-
ble for heating especially for temperatures
under 10 °C)
# 21
Room temperature
sensor or cable defec-
tive
Contact customer service
# 24
Risk of undervoltage
Battery voltage too low
< 10.4 V
Charge the battery
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...