Troubleshooting Chart, Handle Heating Systems And Generator - Stihl MS 441 Manual

15.7.1 Troubleshooting chart, handle heating systems and generator

yes Do both handles warm up?
Heating switch on "#"?
Measure resistance of individual
heating elements with ohmmeter
(on machines with carburetor heating,
disconnect wire from carburetor
Check rear handle heating element:
Does it make complete contact?
Resistance of rear handle
resistance between engine ground
and generator connection
1
MS 441, MS 441 C
Start
no
yes
heating element),
b 15.1
in good condition?
yes
heating element
about 1.6 ohm?
yes
Check generator:
about 0.5 – 1 ohm?
yes
2
Turn on switch
no
no
Replace rear
handle heating
element,
b 15.5
no
no Replace
generator,
b 15.7
3
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