Certikin COH110, Operating, Installation And Servicing Instruction

Page: 43 / 96

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5. FAULTS / SOLUTIONS
]"*"#K"E(1#9(0#7&!#8+!G#$(5"#7&0$"$#&!G#%2"#)($$+KE"#$(E0%+(!$#8(*#$(5 "#)*(KE"5$#%2&%#7(0EG#7&0$"#&
8&+E0*"#%(#$%&*%#(*#&#K&G#1(*6+!'#(8#%2"#K0*!"*I
`##8&0E%#0$0&EE9#5&6"$##%2"##E(76c(0%##E&5)##E+'2%##12+72##+$##$+%0&%"G##+!$+G"#%2"#*"$"%#K0%%(!#(8#%2"#7(!%*(E#K(a
P.B#8+'I#.B#)&'"#.QI
U2"!#E(76#(0%#E&5)#E+'2%$#%2"#K0*!"*#1+EE#&%%"5)%#%(#E+'2%#(!E9#&8%"*#)0$2+!'#%2"#*"$"%#K0%%(!I#`8%"*#%2+$#+8#%2"
K0*!"*#80!7%+(!$#7(**"7%E9B#%2"#E(76c(0%#7&!#K"#&%%*+K0%"G#%(#&#%" 5)(*&*9#8&0E%I#L8#2( 1";"*#%2"#E(76#(0%
7(!%+!0"$#%2"#7&0$"#50$%#K"#G"%"*5+!"G#&!G#%2"#$(E0%+(!#8(0!GI#
WARNING
J2"#5&!08&7%0*"*#7&!!(%#&77")%#*"$)(!$+K+E+%9#8(*#&!9#G&5&'"#%(#)"*$(!$B#&!+5&E$#(*#)*()"*%9#G0"#%(#"**(*
+!#+!$%&EE&%+(!#(*#+!#%2"#K0*!"*#&Gd0$%5"!%B#(*#G0"#%(#+5)*()"*#(*#0!*"&$(!&KE"#0$"#(*#!(!#(K$"*;&!7"#(8#%2"
%"72!+7&E#+!$%*07%+(!#"!7E($"G#1+%2#%2"#K0*!"*B#(*#G0"#%(#%2"#+!%"*;"!%+(!#(8#0!h0&E+8+"G#)"*$(!!"EI
FAULTS POSSIBLE CAUSES SOLUTION
The burner will not
start when the limit
thermostat closes.
C&76#(8#"E"7%*+7&E#$0))E9I
32"76#)*"$"!7"#(8#;(E%&'"#+!#%2"#
C#c#R#7E&5)$#(8#%2"#7(!%*(E#K(aI
32"76#%2"#7(!G+%+(!$#(8#%2"#80$"$I
32"76#%2&%#$&8"%9#%2"*5($%&%#+$#!(%#
E(76#(0%I
J2"#)2(%(*"$+$%&!7"#$""$#8&E$"#E+'2%I 4E+5+!&%"#%2"#E+'2%I
J2"#7(!!"7%+(!$#+!#%2"#7(!%*(E#K(a#
&*"#1*(!'E9#+!$"*%"GI 32"76#&!G#7(!!"7%#7(5)E"%"E9#&EE#%2"
)E0'$I
Burner runs normal-
ly in the prepurge
and ignition cycle
and locks out after 5
seconds ca.
J2"#)2(%(*"$+$%&!7"#+$#G+*%9I 3E"&*#+%I
J2"#)2(%(*"$+$%&!7"#+$#G"8"7%+;"I 32&!'"#+%I
VE&5"#5(;"$#&1&9#(*#8&+E$I
32"76#)*"$$0*"#&!G#(0%)0%#(8#%2"#80"EI
32"76#&+*#(0%)0%I
32&!'"#!(^^E"I
32"76#%2"#7(+E#(8#$(E"!(+G#;&E;"I
Burner starts with an
ignition delay.
J2"#+'!+%+(!#"E"7%*(G"$#&*"#1*(!'E9#
)($+%+(!"GI `Gd0$%#%2"5#&77(*G+!'#%(#%2"
+!$%*07%+(!$#(8#%2+$#5&!0&EI
`+*#(0%)0%#+$#%((#2+'2I Y"%#%2"#&+*#(0%)0%I
R(^^E"#G+*%9#(*#1(*!I _")E&7"#+%I