Atlantic Boilers A-YO Series Betriebs- und Wartungshandbuch - Seite 13
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Fault Finding
ERROR
Pressure gauge mis-reading
Water overspill from boiler
Open tank filled with hot water
Circuit breaker fails in OFF position
Boiler over-rides working pressure
Safety valve exhausts at low setting
or safety valve has alternate faulty
steam/water cycle
Safety valve exhausts too much water
Water level sensor over-cycling
LCD Panel displays – contactor inert
AC contactor vibrates in circuit
Air leak in sight glass
POSSIBLE FAULT
Pressure gauge broken
Brass housing blocked
Ball valve blocked in open tank
Ball valve broken
Back-feed from check valve
Reset button in 'OFF' position
Heating tube has failed
Circuit breaker has failed
Circuit breaker circuit is faulty
Pressure controller faulty
Pressure control circuit faulty
Safety valve is at faulty setting
Safety valve has failed
Incorrect action of feed water pump
LCD controller is faulty
AC contactor is faulty
AC contactor circuit faulty
Dust in the contactor
Voltage unstable
Lock ring faulty
LIKELY REPAIR
Replace gauge
Clean or replace housing
Open tank lid and repair
Replace ball valve
Clean or replace check valve
Press re-set button
Replace heating tube
Replace circuit breaker
Check the circuit
Replace pressure controller
Check the circuit
Test for behaviour
Replace with certificated safety valve
Drain boiler of water & re-start
cycle
Clean & wash the water level sensor
Replace LCD controller
Replace AC contactor
Check the circuit
Air pressure clean or replace
Check voltage
Replace lock ring