TE S T ACTION AP PLICAB ILITY
1 WA R N I N G : N E V E R O P E R AT E T H E H E AT E R I N A N E N C L O S E D A R E A
TH AT D OES N OT HAVE EXH AU S T VEN TILATION FACILITIES . A LWAYS
VEN T THE EXHAU S T WHE N OP ERATIN G THE HE ATER. F AILU R E TO
FOLLOW TH ES E IN S TRU CTIONS CAN RES U LT IN P E RS ON AL IN J U RY
OR D E ATH .
WA R N I N G : A L L O W T H E H E AT E R A S S E M B LY T O C O O L B E F O R E P E R -
FOR MIN G A COMP ON EN T INS P E CTION /RE PAIR /REP LACE MEN T. FAIL-
UR E TO F OLLOW THES E IN STR U CTION S CAN RE SU LT IN P E RS ON AL
IN JU RY OR D E ATH .
CAU TION : D O N OT P E R F ORM TH IS TE S T U N LES S D IRE CTE D H ER E B Y
TH E HEATER P RE -TES T. ALWAYS P ERF ORM THE HEATER P RE-TES T
P RIOR TO P ERF ORMING AN Y OTHER TES T F OR TH E R ES U LT TO BE
VAL I D .
Tur n th e ign it ion off.
NOTE: If there is an internal leak in the heater, a continuous loud chunking
or grinding noise may have been heard coming from the assembly during
th e P re -te s t.
Ch eck for en gin e coola n t cont in u ou sly flowing out of t h e hea t er ’s exh a u st pipe.
Is en gin e coola n t comin g ou t of th e h ea t er ’s exh a ust pipe?
All
Ye s → Repla ce t h e Ca bin Hea t er Assem bly or Hea t er Boost er Assem bly
in accor da n ce wit h t h e Ser vice In for m a t ion .
Per for m H E ATE R VERIF ICATION TE ST - VER 1.
No → Go To 2
2 WA R N I N G : N E V E R O P E R AT E T H E H E AT E R I N A N E N C L O S E D A R E A
TH AT D OES N OT HAVE EXH AU S T VEN TILATION FACILITIES . A LWAYS
VEN T THE EXHAU S T WHE N OP ERATIN G THE HE ATER. F AILU R E TO
FOLLOW TH ES E IN S TRU CTIONS CAN RES U LT IN P E RS ON AL IN J U RY
OR D E ATH .
WA R N I N G : A L L O W T H E H E AT E R A S S E M B LY T O C O O L B E F O R E P E R -
FOR MIN G A COMP ON EN T INS P E CTION /RE PAIR /REP LACE MEN T. FAIL-
UR E TO F OLLOW THES E IN STR U CTION S CAN RE SU LT IN P E RS ON AL
IN JU RY OR D E ATH .
Tur n th e ign it ion off.
In spect t h e h ea t er ’s coolan t h oses for r est r iction s, lea k age, a nd da m a ge.
Are t h e hea t er ’s coola n t hoses Ok?
All
Ye s → Go To 3
No → Repa ir t h e h ea ter ’s coola n t hoses a s n ecessa r y in a ccor da n ce with
th e Ser vice In form a t ion .
Per for m H E ATE R VERIF ICATION TE ST - VER 1.
3 WA R N I N G : N E V E R O P E R AT E T H E H E AT E R I N A N E N C L O S E D A R E A
TH AT D OES N OT HAVE EXH AU S T VEN TILATION FACILITIES . A LWAYS
VEN T THE EXHAU S T WHE N OP ERATIN G THE HE ATER. F AILU R E TO
FOLLOW TH ES E IN S TRU CTIONS CAN RES U LT IN P E RS ON AL IN J U RY
OR D E ATH .
Ch eck t h a t t h e en gin e’s coolin g syst em is oper a t in g pr oper ly in accor da nce wit h t h e
Ser vice In for m a t ion .
Is t h e en gin e’s coolin g syst em oper a t in g pr oper ly?
All
Ye s → Go To 4
No → Repa ir t h e engin e’s coolin g syst em in a ccor da n ce wit h th e Ser vice
In for m a t ion .
Per for m H E ATE R VERIF ICATION TE ST - VER 1.
94
CABI N H EAT ER
HEATER IN LOCKOUT MODE — Co n t inued