Dometic CH 4000 Instructions De Montage Et De Service page 12

Troubleshooting
Firmware version
➤ Read out the firmware versions of the display (HMI) and of the heater
according to fig. y, page 8.
Default routine for trouble shooting
Only execute the default routine if it is proposed in the error code table.
1. Wait 3 minutes, then restart.
2. If the heater does not operate properly contact the manufacturer's
support.
Contacting the manufacturer's support
See back page of this manual.
Error code table
Error
Cause
Code
002 Battery voltage low
003 Battery voltage high
005 Fuse blown
007 General system error
008 Communication error
Air pressure sensor error ➤ Execute the default routine.
403
404 Circulation air tempera-
ture sensor error
406 Water temperature
sensor error
408 Room temperature
sensor error
409 Air heater flame sensor
error
410 Water heater flame
sensor error
411 Combustion fan error
Circulation blower error ➤ Execute the default routine.
412
413 Air heater gas valve 1
error
414 Air heater gas valve 2
error
415 Water heater gas valve
error
12
Remedy
1. Check battery voltage and compare
them to under voltage setting.
2. Charge battery.
3. Connect vehicle to AC power.
4. If none above solves the issue contact
the manufacturer's support.
1. Check battery voltage and ensure it is
less than 16.5 V.
If battery voltage is higher than 16.5 V
either a wrong battery is connected or
battery is broken.
2. Replace battery with battery that sup-
plies DC power according to techni-
cal data (see data plate).
3. In case vehicle is connected to AC
power check if battery is charging.
4. If battery is charging check charging
voltage (must be lower than 16.5 V to
assure proper function whilst charg-
ing).
1. Check DC power fuses (chapter
"Replacing fuses" on page 11).
2. If heater does not operate properly
contact the manufacturer's support.
➤ Contact the manufacturer's support.
➤ Execute the default routine.
➤ Execute the default routine.
➤ Execute the default routine.
➤ Execute the default routine.
➤ Execute the default routine.
➤ Execute the default routine.
➤ Execute the default routine.
➤ Execute the default routine.
➤ Execute the default routine.
➤ Execute the default routine.
Error
Cause
Code
416 Master gas valve error
417 Gas valve relay error
418 Air heater start error
419 Water heater start error
420 Air heater flame out
421 Water heater flame out
422 Air heater overheat
423 Water heater overheat
424 Window opened
(only if window switch is
installed)
434 Self shutdown. Service
warning has been
ignored too long.
Warning code table
Code Cause
425 Water frozen.
432 CH4000E, CH6000E
only: No more AC
power supply available.
433 Service required.
Disposal
➤ Place the packaging material in the appropriate recycling waste bins
wherever possible.
4445103144
Remedy
➤ Execute the default routine.
➤ Execute the default routine.
➤ Execute the default routine.
➤ Execute the default routine.
➤ Execute the default routine.
➤ Execute the default routine.
1. Assure that air heater is switched off.
2. Wait 15 – 30 minutes until heater has
cooled down.
3. Check if all air inlet grilles and the
cabin air ducting to the heater are not
blocked.
4. Restart air heater.
5. If heater does not operate properly
contact the manufacturer's support.
1. Assure that water heater is switched
off.
2. Wait 15 – 30 minutes until heater has
cooled down.
3. Check if boiler is filled with water.
4. Refill with water if water was missing.
5. Restart water heater.
6. If heater does not operate properly
contact the manufacturer's support.
1. Check if the window above the cowl is
opened.
2. If window was opened close window
and restart heater.
3. If window was closed execute the
default routine.
➤ Contact the manufacturer's support
for service. Heater can only be
restarted after service.
Remedy
1. Reset warning.
Water heating is shut down. Only air heat-
ing is operating.
2. Operate the air heating at the highest
level so that the interior temperature
rises and the water heating is ready for
operation again.
1. Reset warning.
Heater is now only operated with gas.
2. Check power supply.
1. Reset warning.
2. Contact the manufacturer's support
for service after your vacation or at the
next opportunity.
If you wait too long, the heater will turn
itself off and can only be restarted after
service.
EN