VOKERA Linea Service Manual download pdf (Page 38)

36

Linea

0 VDC

ON BOILER

FLOW

SWITCH

CHECK WATER

FLOW

SWITCH

OK

IS

THERE A

VOLTAGE > 0.5 Vdc

BETWEEN TERMINALS

M3.11 & M3.10

ON PCB

IS

THERE 0 Vdc

BETWEEN TERMINALS

M5.3 & M5.4

ON PCB

IS

THERE MAIN

BETWEEN TERMINALS

M14.1 & M14.2

ON PCB

A

REPLACE

SENSING

ELECTRODE

AND LEAD

REPLACE

IGNITION

CONTROL

REPLACE

SENSING

ELECTRODE

AND LEAD

OK

CHECK SENSING

ELECTRODE

AND LEAD

END

LOCKOUT

AFTER

IGNITION

REPLACE

GAS VALVE

CHECK GAS

GAS

VALVE

OK

IGNITION

SPARK AT

ELECTRODE

IS

THERE MAIN

BETWEEN TERMINALS

L & N ON

IGNITION

CONTROL

CHECK SPARK

ELECTRODE AND

LEAD OR REPLACE

CHECK WIRING

AND

CONNECTIONS

CHECK WIRING

AND

CONNECTIONS

CHECK WIRING

AND

CONNECTIONS

IS

THERE A

VOLTAGE > 0.5 Vdc

BETWEEN TERMINALS

M3.11 ON PCB & GRAY

WIRE ON D.A .P.

SWITCH

CHECK THE FAN,

VENTURI

AND/OR D.A.P.S

A1

A3

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

IGNITION

CONTROL

IGNITION

CONTROL

OK

IGNITION

CONTROL

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