Cleaning
Clean the external surfaces of the boiler
regularly to maintain good hygiene.
Empty the front drip-tray regularly.
Wipe external surfaces of the boiler with a damp
cloth. Do not use abrasive materials on the outer
surfaces.
Wipe the draw-off tap each day to keep clean
and also prevent lime-scale deposits from
building up around the tap-outlet.
Maintenance & Service
Information
Filter:
Twist to the left and remove. See “AQ35 Filter
Replacement” section above.
Descaling:
The boiler should be periodically checked for
scale build-up…see below:
In hard water areas, the boiler should be
descaled on a regular basis to maintain efficient
operation, minimise energy consumption, and
also retain the water quality. The frequency
depends on the hardness of the local mains
water supply and the regular replacement of the
AQ35 filter cartridge.
To de-scale:
• Disconnect machine from power supply
• Empty the machine through the draw-off tap
and allow to cool
• Remove outer-lid (spring-clips)
• Remove tank-lid (four/six fixing screws)
• Lift out the evaporation plates
(inside of tank – Remember order
of removal)
• Remove as much scale as possible by hand.
Any scale which is difficult to remove can be
dissolved by using a de-scaling solution
• Wipe clean the level sensing probes
• Flush with copious amounts of cold water to
ensure all traces of de-scaler are removed
before using the boiler again
• Replace evaporation plates, tank-lid and
outer lid
Draw-off tap:
The draw-off tap components are subject to
wear & tear. We strongly recommend that the
tap is inspected periodically (at least once a year
as part of a general maintenance routine). It is
advisable to keep a spare tap assembly in case
of emergencies.
Accessories & Spares (Tel: 01704 502905)
Tap Washer
TP1001/L
Tap Spring
TP1007/N
Tap Bonnet
HSTP100
Upper Tap Assembly XTP1050/A
A full range of spares and accessories are
available from our spares department.
Service Warnings and Fault
Diagnosis
The majority of possible faults are covered
overpage. However, in certain circumstances,
safely controls within the boiler may be
activated.
There are two resettable safety cut-outs in your
boiler:
1). Over-boil safety cut-out – this will activate
should the boiler produce excess steam.
This can be due to;
- lime-scale within the tank
- a temporary interruption in the water supply
- a faulty temperature sensor
To reset boiler; Switch off at the mains power
supply and allow the boiler to cool down for ten
minutes before switching back on (the safety
device should automatically reset).
EARLIER MODELS: The over-boil cut-out
will require a manual reset. Contact Instanta
Technical Support department for assistance
with this.
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.
The boil-dry safety switch will require resetting.
Please contact our Technical Support
department for assistance with this.
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