VOKERA Linea Service Manual download pdf (Page 40)

38

Linea

REPLACE

CONTROL

BOARD

REMOVE

JUMPER

IS

TIMER JUMPER

ON JP9

WAIT 3 MIN.

RESTART

THE TEST

DO

BURNER AND FAN

SWITCH ON

IS

WATER FLOW

TEMPERATURE

>80 ûC

WAIT WATER

FLOW

TEMPERATURE

< 80 ûC

REPLACE

CONTROL

BOARD

REPLACE

CONTROL

BOARD

REMOVE

JUMPER

IS

TIMER JUMPER

ON

RESTART THE

TEST

C1

DO

BURNER AND FAN

SWITCH ON

REMOVE THE LINK

BETWEEN PIN M16.TA

AND M16.TA ON

CONTROL BOARD

WAIT 30 SEC.

END

DO

BURNER,

FAN AND PUMP

SWITCH

OFF

C

IS

THERE A

VOLTAGE < 1 Vdc

BETWEEN TERMINALS

M3.10 & M3.11

ON PCB

CHECK FAN, WIRING

AND CONNECTIONS,

DIFFERENTIAL ANALOG

PRESSURE SWITCH AND

CONTROL BOARD

IS

FAN

ON?

CHECK FLUE

VENTURI

IS

D.A.P.S.

OK?

REPLACE DIFFERENTIAL

ANALOG PRESSURE

SWITCH

IS

THERE A

VOLTAGE >4 Vdc

BETWEEN TERMINALS

M3.10 & M3.11

ON PCB

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

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