Elma TS540 - T460-T700 H;LC30-LC130 H Troubleshooting

Trouble shooting / List of malfunctions
© Elma GmbH & Co KG SM/Transsonic_LC/1104/D
15
6.3 T460 – T 700H; LC 30 – LC 130H
Malfunction 1. Check:
Pilot
lamp
ultra-
sound
2. Check:
Heating
switch
- if
lighted
3. Check:
Fuse
inter-
ference
filter
4. 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
/ weak
ultrasound
(Heating OK)
OK OK OK OK
• printed
board
• output
transformer
• output
capacitor
• scorching in
transducer
system
• replace
component
• replace
complete
printed
board
• open/
check
transducer
system
No ultrasound
(Heating OK)
OK OK OK faulty
• printed
board:
(transistors
in diodes)
• replace
compo-
nents
• replace
complete
printed
board
No ultrasound
(Heating OK)
OFF OK OK OK
• interference
filter coil
• timer
• replace
inter-
ference
filter
• replace
timer
No ultrasound
No heating
OFF OFF OK OK
• interference
filter
• mains cable
• replace
compl.
Inter-
ference
filter
• replace
mains
cable
• replace
component