ROTHENBERGER ROWELD D 4/15 Aero - Manual (Page 30)

28 ENGLISH
Fault No. Possible causes Remedies
1 Smaller or too small a welding rod
diameter Use larger welding rod diameter, if
necessary
2 Temperature sensor defective 1)
3 Temperature controller defective 1)
5 Cable connections defective Check cable connections. 1)
8 Hot air temperature below start inter-
lock temperature Allow hand extruder to heat up
9 Melt temperature below start interlock
temperature Allow hand extruder to heat up
10 Preheat time for hot air too short Allow hand extruder to heat up
11 Preheat time for melt too short Allow hand extruder to heat up
13 Air supply not constant 1)
14 Wrong rated voltage Rated voltage > permissible voltage
Check mains voltage
Rated voltage < permissible voltage
Check mains voltage
1)
15 Extension cable heats up Unroll cable reel
Check cable cross-section (see also
section “Safety“)
16 Extruder nozzle plugged with foreign
matter Clean extruder.
Extruder nozzle – left-hand thread
17 Drive unit defective 1)
18 Electronic control defective 1)
19 Controller programming error 1)
20 Welding rod feed Remove welding rod
Observe instructions in section “Main-
tenance“!
Observe instructions for operation!
22 Hot air unit defective 1)
23 No mains voltage Check voltage supply
1) Consult ROTHENBERGER Werkzeuge GmbH