![background image](http://html1.mh-extra.com/html/karcher/kmr-1250-b/kmr-1250-b_service-manual_3518271018.webp)
18
Troubleshooting Information
KMR 1250 B, LPG, D
Check regulator
ORIGINAL
When the engine is running, the alternator gener-
ates a continuous current flow. The regulator
automatically adapts this current as required
(depending on battery charge status and electri-
cal load).
–
Start engine and allow to run.
–
Using a clip-on ammeter, measure regulator
charging current on X1 plug coupling (white
wire on male connector or red wire on female
coupling of X1 connector).
If a charging current cannot be measured, this
indicates that the alternator is faulty and must be
replaced.
Checking regulator charging current
Starter Fails to Turn Engine
Checking regulator charging current
Check regulator
REVISED
Units of recent manufacture no longer feature
the X1 plug coupling. Wires are connected by
individual round plug couplings instead.
–
Start engine and allow to run.
–
Using a clip-on ammeter, measure regulator
charging current on red-and-white wire cou-
pling.
If a charging current cannot be measured, this
indicates that the alternator is faulty and must be
replaced.
ws White wire
rt
Red wire
1
Plug coupling
2
Round male plug w/ female coupling
ws
rt
A
A
1
ws
rt
A
A
2