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ISO-176 W415-0118 / B / 10.25.06
16
Troubleshooting: Natural Vents
Pilot Failure Flowchart
C heck to ma ke s ure the pilot is la rge enough a nd in the
proper pos ition, to properly hea t the thermocouple. (S ee
"T es ting: P ilot F la me")
Is the pilot fla me s hrinking when the burner is turned on?
C heck to ma ke s ure the pres s ure is not dropping off on
a ctiva tion. (S ee "T es ting: P res s ures ")
Ha s the thermocouple been tes ted for millivolt
genera tion?
NO
YES
NO
Is the pilot fla me pa ttern, pos ition a nd s ize correct?
Y E S
T es t the thermocouple to ens ure it is within s pecifica tions .
(S ee "T es ting: Millivolts - T hermocouple")
NO
Ha s the thermopile (on s ingle-genera tor s ys tems ) been
tes ted for millivolt genera tion?
YES
T es t the thermopile to ens ure it is within s pecifica tions .
(S ee "T es ting: Millivolts - T hermocouple")
NO
YES
Ha s the unit been checked for s pilling?
C heck the s pill-tube for dra ft (a s deta iled in the
ins ta lla tion ma nua l) a nd open a window to a llevia te
nega tive pres s ure in the a rea .
NO
Are the connections on the thermopile, s pill s witch, a nd
s witches s ecure?
YES
T ighten / s ecure the connections .
NO
Ha s the function of the ma gnet coil been checked?
YES
T es t the ma gnet coil to ens ure it is within s pecifica tion.
(S ee "T es ting: F unction - Ma gnet C oil")
NO
Are the units venting pa ra meters within s pecifica tion?
YES
C heck loca l code requirements for na tura l-vent
a pplia nces a nd a djus t a s neces s a ry.
NO
YES
Ha s the pos itioning of the logs been checked?
O ut of pla ce logs ca n a lter the flow of a ir within the
combus tion cha mber, ca us ing a n erra tic pilot.
NO
Ha s the function of the s pill s witch been checked?
YES
C heck the function of the s pill s witch. (S ee "T es ting:
S witches - S pill S witch")
NO
Summary of Contents for W415-0118
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