Service Warnings
& Fault Diagnosis
Your boiler is fitted with an intelligent fault diagnosing
system and is able to detect various fault conditions.
Some of these are less serious and the machine will
continue to operate as normal, while others are more
serious and will disable the unit.
Before calling for service, switch the machine off at
the mains supply. Draw-off a small amount of water
and then switch back on after 10 minutes. If the fault
does not clear, call technical support for advice.
Light
Indication:
Possible
Causes:
Action;
Flashing
Green:
The bottom
probe is scaled
up.
De-scale inside
of tank and level
sensors
Flashing
Orange:
• Water turned
off
• Inlet hose
kinked or bent
• Low
in-coming
water pressure
• Check water
supply and
stop-cock
• Check in-
coming water
is at minimum
of 2bar
Flashing
Red:
• Safety Control
has activated
• An internal
component has
failed
• Top probe not
recognised.
Water has
reached over-fill
probe
• See Safety
Controls below
• Contact
Instanta
Technical
Support.
• Clean and
de-scale
probes
Flashing
Red &
Green:
• Over-boil safety
switch tripped
on initial heat-
up.
• Faulty Element
• Boil-dry
safety control
activated
• Re-set
required:
Isolate power
to appliance.
Push-in
manual reset
button (remove
back panel to
access).
• Call service if
fault persists.
Safety Controls:
The majority of possible faults have been covered
above. However, in certain circumstances, one of
two different safety controls within the boiler may
have activated;
1). Over-boil safety cut-out – activates if boiler
produces excess steam. This can be due to;
• lime-scale within the tank,
• a temporary interruption in the water supply.
• a faulty temperature sensor or internal
component (triac).
To Reset Boiler:
All Earlier Models: Switch off at the mains power
supply and allow the boiler to cool for ten minutes
before switching back on.
Safety Caution: Isolate boiler from power supply
before proceeding:
Later Models (All 1000-M models and 1000-C
units from Serial No: CB02863 – Jan 2014): Isolate
from mains electrical power supply and allow the
boiler to cool down. Remove back panel and push
the small reset button in the centre of the over-boil
cut-out (located next to the water inlet valve).
2). Boil-dry safety cut-out. This operates if the boiler
has been boiled dry, for example, due to lime scale
build-up or water starvation.
Safety Caution: Isolate boiler from power supply
before proceeding:
To reset boiler, Isolate from mains electrical supply.
Remove the back panel and push the small reset
button in the centre of the element cut-out.
In any of these events the indicator lamp will flash red
or green or red and green. If the problem reoccurs
contact the Instanta Service Department
- 01704 502911
6
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