Elma TS540 - T310(H) Troubleshooting Details

Trouble shooting / List of malfunctions
© Elma GmbH & Co KG SM/Transsonic_LC/1104/D
11
6.1 T310(H)
Malfunction 1. Check:
Heating
switch
- if lighted
2. Check:
Fuse
printed
board
Possible causes Remedy
Check the unit for possible damages and traces of liquid inside (e.g. leak in the
tank, liquid/humidity entering from outside)
No ultrasound
(Heating OK)
OK OK • interference filter
coil
• timer
• replace component
• replace complete
interference filter
No ultrasound /
weak ultrasound
(Heating OK)
OK OK • output transformer
• output capacitor
6.8nF
• scorching in
transducer system
• replace component
• replace complete
printed board
• open/check
transducer system
No ultrasound
No heating
OFF faulty • faulty printed board
(BZW diode;
transistors; diodes
mains and HF)
• replace component
• replace complete
printed board
• disconnect heating
cable,
check unit again (new
fuses)
if short circuit does not
occur again, the
heating is faulty
• replace faulty heating
No ultrasound
No heating
OFF OK • interference filter
• mains cable
• replace complete
printed board
• replace mains cable