Troubleshooting Boiler - FULTON Electropack Series Installation, Operation And Maintenance Manual

Fulton Ltd
4.8.1 TROUBLESHOOTING
Problem
Circuit Live indicator
not illuminated
Boiler Low Water
lamp illuminated and
Audible alarm sounds
High Pressure
Audible alarm sounds
Feed Water Tank Low
water indicated
Pump Fault indicated
Element Fault
Tank Low Water
indicated
Note: Unless a faulty element is allowing steam or water to escape it is safe to operate the boiler with the faulty
element fitted provided that the element selector switch has been switched off.
Note: Open circuit element faults will not be detected by the element fault detection system.
EP18-72-IOMM-2015-7
Cause
1. Mains supply failure.
2. Door interlock microswitch
not made.
1. Insufficient water in the
boiler.
2. Obstruction in the feedwater
line to the pump.
3. Air lock in the pump.
4. Feedwater pump impeller
worn.
5. Incorrect connections to
water level probes.
6. Faulty water level relay.
1. On/Off Pressure Control
failure.
2. High pressure controller set
too close to on/off control
setting.
1. Low Water.
2. Faulty water level relay.
1. Electrical fault in the
feedwater pump circuit.
2. Thermal overload fitted to
the pump motor contactor
requires re-setting.
3. Faulty pump overload.
1. MCB requires re-setting.
1. Insufficient water in the tank Check
Remedy
External circuit MCB requires resetting.
Fuses need replacing.
Indicator lamp needs replacing.
Check that the feedwater supply line valves are
open. Check that the ball valve in the tank is
operating correctly by removing the inspection cover
on the tank.
Check that the shut-off valve below the tank is open.
Remove and clean the filter in the strainer. Check
that the non-return valve is operating correctly.
Bleed the pump at the point provided.
Check connections to water level probes.
Check that each relay is pressed
base.
Check that water supply line valves are open. Check
the feedwater solenoid valve is opening.
Check that the feedwater relay is pressed firmly
home on its base.
Check the circuit fuse, replace as required.
Check that the unit has been set to the correct
amperage and adjust if necessary. If the fault
continues after the controls have been reset, a
major fault exists which can only be corrected by
a competent person with correct electrical test
equipment.
If the fault persists the element and the circuit must
be fully checked by a competent person.
the valves in the feedwater supply line
are open. Check the feedwater solenoid valve is
opening.
Incorrect connections to the tank water level probes.
Faulty water level relay, check that each relay is
pressed firmly on to its base.
MAINTENANCE - 4
BOILER
firmly home on its
Page 35