Troubleshooting Chart - Stihl MS 460 Service Manual

13.2

Troubleshooting Chart

temperature = +20 °C (68 °F)
Does thermostatic switch
close between + 13 °C (55 °F)
Does thermostatic switch
open between + 6 °C (43 °F)
Carburetor heating system
80
Measure resistance of
heating element at
Resistance
approx. 8 Ohm?
yes
Check thermostatic
switchn
and + 6 °C (43 °F)?
yes
and + 13 °C (55 °F)?
yes
in order
no
Replace heating
element
Replace thermostatic
no
switch
no
Replace thermostatic
switch
MS 460, MS 460 C