Bradford White U100L199E N Series, Service Manual

Page: 42 / 56

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Spar k Ro d Repla c eme n t Pro c e d ure
St e p 4. Ca re fu ll y cut a path i n th e i ns u l at i o n f r om th e b l ow er tub e towa r d s th e f l am e sens o r ( s how n b e l ow) .
Pay c l o se att en t i o n to n ot cut a n y w i res . F o l d th e i ns u l at i o n bac k to e x po se th e s pa r k r od .
St e p 5 . D i s co nne ct w i re l e ad f r om s pa r k r od
.
St e p 6 . R e mov e th e 2 mou n t i n g s c re w s (ma g ne t i c
t i p, l o n g re ach Ph i ll i p s s c re w d r i v er ) a n d re mov e
s pa r k r od & g a s k e t f r om t r a ns i t i o n ba se
f l a n g e .
St e p 7 . R e mov e a n y res i dua l g a s k e t mat er i a l f r om
t r a ns i t i o n ba se f l a n g e .
St e p 9 . F o l d i ns u l at i o n bac k i n to p l ac e . B e s u re n o w i res a re u n d er th e i ns u l at i o n that
cou l d com e i n co n tact w i th bu rner f l a n g e .
St e p 8 . I ns ta ll ne w s pa r k r od w i th ne w g a s k e t p r ov i d e d u s i n g s c re w s
f r om s t e p 6 . A rr a n g e s pa r k r od w i th hoo k towa r d s bu rner (Off -
c en t er mou n t i n g ho l e o n l y a ll ow i ns ta ll at i o n o ne way) .
Ch e c k d i s ta n c e b e tw een s pa r k r od a n d b l ow er t r a ns i t i o n tub e
( s how n b e l ow) .
St e p 1 . Po s i t i o n ma i n pow er s w i tch to “O FF ”
St e p 2 . D i s co nne ct (u n p l u g ) wat er h e at er f r om 120 vo l t pow er
s ou r c e .
St e p 3 . U n -l atch & re mov e s u rr ou n d cov er f r om top of h e at er .
St e p 10 . R es to re 120 vo l t pow er s upp l y to wat er h e at er a n d co n f i r m p r op er op er at i o n fo ll ow i n g th e
l i g ht i n g i ns t r uct i o ns o n th e l i g ht i n g i ns t r uct i o n l ab e l o r th e l i g ht i n g i ns t r uct i o ns l ocat e d i n
th e i ns ta ll at i o n a n d op er at i n g i ns t r uct i o n ma n ua l.
St e p 11 . R e p l ac e s u rr ou n d cov er o n top of
wat er h e at er .
W AR NIN G
120 volt potential exposure. Isolate the
appliance and reconfirm power is
disconnected using a multi-meter.
O ff - center
mounting
hole
S par k rod screws
( X 2 )
S par k rod gas k et
S par k rod
C ut insulation
S par k R od
D istance of 2 " to 2 1 / 1 6" for 1 99 , 999 input and below.
D istance of 4 1 / 8 " to 4 3/ 1 6" for 2 7 0 , 000 input and abo v e.
B lower
transition tube
C enter of spar k
rod
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