9-13
FITTED EQUIPMENT
Troubleshooting guide (Combi gas heating system)
Fault
Cause
Rectification
code
# 17
Summer mode with empty water tank
Switch unit off and allow to cool. Fill boil
with water.
Warm air outlets blocked
Check individual outlet apertures
Circulated air intake blocked
Remove blockage from circulated air intake
# 18
Gas pressure regulator iced up
Use regulator heater (EisEx)
Butane content in the gas cylinder too high
Use propane (Butane is unsuitable for
heating, particularly at temperatures below
10
°
C.)
# 21
Room temperature sensor or cable
Please contact Truma Service
defective
# 24
Risk of low voltage. Battery voltage
Charge battery
too low < 0.4 V
# 29
FrostControl heating element has a
Disconnect heating element plug from
short circuit
electronic control unit. Replace heating
element
# 41
Electronics blocked.
Please contact Truma Service.
# 42
Open window above cowl (window switch)
Close window.
# 43
Overvoltage > 16.4 V
Check battery voltage and voltage sources
such as the charger.
# 44
Low voltage. Battery voltage too low <10.0 V
Charge battery. Replace obsolete battery if
necessary
# 45
No 230 V operating voltage
Restore 230 V operating voltage
230 V fuse defective
Replace 230 V fuse.
Overheating protection has been triggered
Reset overheating protection. Allow heating
system to cool, remove connector cover
and press reset button.
#112, #202 Gas cylinder or quick-acting valve in
Check gas supply and open valves
#121, #211 gas supply line closed
#122,#212 Combustion air infeed or exhaust
Inspect openings for contamination (slush,
outlet is sealed
ice, leaves, etc.) and remove
contamination if necessary.
#255
No connection between heating system
Please contact Truma Service.
and control panel
Defective control panel cable
If these actions do not remedy the problem, please contact the Truma Service.
Summary of Contents for Symbol Plus 2018
Page 6: ...1 4 ...
Page 10: ...2 4 MOTORHOME CODE ...
Page 16: ...5 2 ARRIVAL AT SITE ...
Page 58: ...7 34 CONNECTION OF SERVICES 12V WIRING DIAGRAM ...
Page 59: ...7 35 CONNECTION OF SERVICES 230V WIRING DIAGRAM ...
Page 60: ...7 36 CONNECTION OF SERVICES ...
Page 93: ...9 29 FITTED EQUIPMENT CONNECTION OF TV SATELLITE SYSTEM STANDARD ...
Page 94: ...9 30 FITTED EQUIPMENT CONNECTION OF TV SATELLITE SYSTEM WITH OPTIONAL MEDIA PACK ...
Page 104: ...9 40 FITTED EQUIPMENT ...
Page 124: ...12 10 SERVICE DETAILS ...
Page 126: ...13 2 NOTES Designed and Printed by Preset Graphics Tel 01332 549278 HB1131 MY 2018 Ref 21627 ...