Ariston microCombi Petunjuk Servis - Halaman 21

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Halaman Cetak

IS THE

AIR PRESSURE SWITCH

ACTIVATED?

YES

DOES

THE SPARK

SEQUENCE

START?

YES

IS THE BURNER

ALIGHT?

YES

HAS THE

BOILER SAFETY

SHUTDOWN BEEN

ACTIVATED?

Supplied By www.heating spares.co Tel. 0161 620 6677

CHECK

∆P ON AIR

PRESSURE TEST

POINT

∆ ≤

P 0.55mbar

POWER

TO SPARK

GENERATOR?

YES

POWER TO

GAS VALVE?

YES

∆

P ≥0.55mbar

1 - Check/replace A.P. switch

1 - Check exhaust/air intake

2 - Check venturi & tubes

3 - Check fan efficiency/replace

1 - Check/replace cable

2 - Check/replace P.C.B.

1 - Check/replace spark

generator

2 - Check/replace ignition

electrodes and cables

3 - Check spark gap

1 - Check/replace cable

2 - Check/replace P.C.B.

1 - Check gas supply pressures

2 - Check gas pressure to

burner

3 - Check spark gap

4 - Check/replace gas valve

1 - Check if flame strikes

detection electrode

2 - Check soft-light gas

pressure

3 - Check/replace detection

electrode

4 - Check/replace P.C.B.