13
Cleaning and Descaling advice and information
Descaling
The descaling procedure must be performed by suitable personnel as it requires the removal of panels from
the boiler and access to live electrical components. Always use a descaling agent suitable for stainless steel.
1.
Isolate the boiler from electrical supply.
2.
Allow the water to cool to approximately 60oC
3.
Lift up the lid on the top of the boiler (Picture 1).
4.
Twist the black tank cap
clockwise
and remove it. (Picture 2)
5.
Add descaling agent through opening (Picture 3) in accordance with manufacturer
’s instructions.
6.
Replace the black tank cap (
anti-clockwise
) and ensure it is secure.
7.
Turn on the electricity and allow the boiler to operate normally for approximately 45 minutes.
8.
Isolate / turn off the boiler and allow to cool down.
9.
Remove the tank cap again, to inspect the tank and level detectors for scale deposits.
10.
Drain and flush the de-scaling agent from the tank, using tap on the front of the appliance.
11.
To drain the tank completely, remove panel under appliance (picture 4), locate the drain valve (picture 5) & attach
overflow pipe (picture 6)
12.
Connect a hose from the overflow pipe into a bucket and open the valve to drain the tank.
13.
When empty, close the valve and replace panel removed in step 12.
14.
Replace tank cap and lid.
15.
Turn the boiler back on.
In hard water areas where a large build-up of scale has formed, you may need to physically scrape
from the tank. If this is required, ensure care is taken and not to damage the level sensor probes.
It is important that you descale your water boiler regularly, particularly in hard
water areas.
Failure to descale your water boiler, or replace your filter cartridge when
prompted to do so, will invalidate your warranty.
1.
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