Napoleon W415-0118, Service Manual, Page: 26 / 104

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ISO-176 W415-0118 / B / 10.25.06
26
Troubleshooting: Vent Free
Pilot Failure Flowchart
Ch e c k t o m a k e su r e t h e p ilo t is la r g e e n o u g h a n d in
t h e p r o p e r p o sit io n , t o p r o p e r ly h e a t t h e
t h e r m o c o u p le . (Se e " Te st in g : P ilo t F la m e " )
Is t h e p ilo t f la m e sh r in k in g w h e n t h e b u r n e r is
t u r n e d o n ?
Ch e c k t o m a k e su r e t h e p r e ssu r e is n o t d r o p p in g
o f f o n a c t iv a t io n . (Se e " Te st in g : P r e ssu r e s" )
Ha s t h e t h e r m o c o u p le b e e n t e st e d f o r m illiv o lt
g e n e r a t io n ?
NO
YES
NO
Is t h e p ilo t f la m e p a t t e r n , p o sit io n a n d size
c o r r e c t ?
YE S
Te st t h e t h e r m o c o u p le t o e n su r e it is w it h in
sp e c if ic a t io n s. (Se e " Te st in g : Milliv o lt s -
Th e r m o c o u p le " )
NO
Ha s t h e f u n c t io n o f t h e m a g n e t c o il b e e n
c h e c k e d ?
YES
Te st t h e m a g n e t c o il t o e n su r e it is w it h in
sp e c if ic a t io n . (Se e " Te st in g : F u n c t io n - Ma g n e t
Co il" )
NO
YES
A r e t h e lo g s p r o p e r ly p o sit io n e d ?
Ou t o f p la c e lo g s c a n a lt e r t h e f lo w o f a ir w it h in
t h e c o m b u st io n c h a m b e r , c a u sin g a n e r r a t ic p ilo t .
NO
Ha s t h e in lin e g a s p r e ssu r e b e e n t e st e d ?
YES
To o m u c h p r e ssu r e c a n p u sh t h e p ilo t o u t p a st t h e
t h e r m o p ile r e su lt in g in lo w e r m illiv o lt s. To o lo w
p r e ssu r e c a n p r e v e n t t h e p ilo t f r o m lig h t in g . (Se e :
" Te st in g : P r e ssu r e s)
NO
Ha s t h e ODS b e e n e x a m in e d f o r d ir t /d e b r is in it ' s
p r im a r y a ir o p e n in g ?
YES
Ch e c k t h e ODS a n d c le a n a s r e q u ir e d .
NO
Ha s t h e u n it b e e n in st a lle d in a r o o m w h ic h m e e t s
it s m in im u m u n c o n f in e d sp a c e r e q u ir e m e n t .
YES
Ch e c k t h e r e q u ir e m e n t s f o r t h e u n it a s p e r t h e
m a n u a l, a n d t h e n p r o v id e m a k e -u p a ir a s
n e c e ssa r y .
NO