Dometic WAECO CoolMatic MR-07 Instrucciones De Uso página 32

_MR-07_MH-07.book Seite 32 Freitag, 16. September 2011 4:42 16
Troubleshooting
Poor cooling, interior temperature increases
Fault
Compressor runs for a
long time/continuously
Compressor runs
intermittently
Unusual noises
Fault
Loud humming
11.2 MH-07
Device does not heat
Fault
U = 0 V
KL
≤ U
U
KL ON
Start attempt with
≤ U
U
KL OFF
U Voltage between the positive and negative terminals of the electron-
KL
ics
U Cut-in voltage of the electronics
ON
U Cut-off voltage of the electronics
OFF
32
Possible cause
Vaporiser is iced over
Ambient temperature too high
Insufficient ventilation and/or air sup-
ply
Condenser is dirty
Fan defective (if installed)
Battery capacity exhausted
Possible cause
A component of the refrigerant circuit
cannot move freely (touching the wall)
Foreign body jammed between the
cooling unit and the wall
Fan noise (if installed)
Possible cause
There is an interruption in the connec-
tion between the battery and
the electronics
Additional supply line fuse has blown
(if installed)
Battery voltage is too low
Loose cables
Poor contact (corrosion)
Battery capacity too low
Cable cross section too small
Kühlschrank
Remedy
Defrost the vaporiser
–
Move the refrigerator to
another location
Clean the condenser
Replace the fan
Charge the battery
Remedy
Bend the component
carefully away from the
obstruction
Remove the foreign body
–
Remedy
Establish a connection
Replace the supply line
fuse
Charge the battery
Establish a connection
Replacing the battery
Replace the cable
(fig. 8, page 6)
EN