Trouble shooting / List of malfunctions
12
SM/Transsonic_LC/1104/D © Elma GmbH & Co KG
Malfunction 1. Check:
Heating
switch
- if lighted
2. Check:
Fuse
printed
board
Possible causes Remedy
Fuse automatic
(building)
released;
No heating;
No ultrasound
OFF faulty • short circuit in
heating
• disconnect heating
cable,
check unit again (new
fuses)
if short circuit does not
occur again, the
heating is faulty:
• replace faulty heating
No heating
(Ultrasound OK)
OFF OK • faulty heating switch
• replace component
No heating
(Ultrasound OK)
OK OK • faulty thermostat
button (check with
ohmmeter)
• replace component
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