20
3. p
oor
f
lame
r
ecTificaTion
or
c
onTaminaTed
s
ensor
If the flame sensor is contaminated it will prevent system continuity and the control module will go
into lockout after 60 seconds� Any visible carbon or oxide buildup found on the flame sensor will
need to be cleaned with emery cloth� Check the continuity of the sensor using a multi-meter in the
Ohm (
Ω
) setting (see Figure 23 below)�
Figure 23: Pilot Sensor Continuity
Scenario #4
4. f
aUlTy
V
alVe
(p
iloT
s
olenoid
)
Pilot Solenoid
Should read
between 37 to 47
Burner Solenoid
Should read
between 55 to 65
To check the pilot and burner solenoids, disconnect the wires from the valve� Adjust the multi-meter
to read Ohms and measure the resistance between the pilot/burner solenoid and the body of the
valve� Refer to Figure 24 for probe locations and approximate readings of the multi-meter�
Figure 24: Dexen Valve - Pilot & Burner Solenoid
Summary of Contents for DEXEN 8K1N
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