ROTHENBERGER ROWELD D 2/10 - Manual (Page 33)

ENGLISH 31
Fault No. Possible causes Remedy
1 Smaller or too small a welding rod
diameter Use a larger welding rod diameter, if
necessary
2 Temperature sensor defective 1)
3 Temperature controller defective 1)
4 Cable connections defective Check cable connections. 1)
5 Hot air temperature below start inter-
lock temperature Allow hand extruder to heat up
6 Melt temperature below start interlock
temperature Allow hand extruder to heat up
7 Preheat time for hot air too short Allow hand extruder to heat up
8 Preheat time for melt too short Allow hand extruder to heat up
9 Heating tape defective 1)
10 Air supply not constant In the case of integrated air supply
system:
1)
11 Wrong rated voltage Rated voltage > permissible voltage
Check mains voltage
Rated voltage < permissible voltage
Check mains voltage
1)
12 Extension cable heats up Unroll cable reel, Check cable cross-
section (see also section “Safety”)
13 Extruder nozzle plugged with foreign
matter Clean extruder
Extruder nozzle – left-hand thread
14 Drive unit defective 1)
15 Electronic control defective 1)
16 Controller programming error 1)
17 Welding rod feed Remove welding rod
Observe instructions in section “Main-
tenance”!
Observe instructions for hand extruder
operation!
18 Carbon brushes of drive unit worn out Replace carbon brushes 1)
19 Hot air supply system defective 1)
20 No mains voltage Check voltage supply
21 Heating circuit not activated
22 Drive operates at overload Heat up hand extruder, melt tempera-
ture too low
23 Temperature set on electronic control-
ler too high Allow unit to cool down
1) Rückfragen bei ROTHENBERGER Werkzeuge GmbH