804546 03.17 1.00 Page 19 of 24Warning: this appliance must be earthed.Following remedial service the earthing continuity of theheater must be checked by a qualified technician using anappliance tester, or continuity tester of accuracy Class 5 orbetter. Class 5 denotes an accuracy of 5% full scale deflection.1. Isolate power supply.2. Set meter to 0 ohm with leads connected together.3. Connect one test lead to the earth pin on the three pin plug.4. Connect the other test lead to a bare patch of metal(preferably on the edge) of the top of the cover, then to thefront cover of the unit, and then to the tap.Warning- the water may be boiling - show extra care.5. Test that in every instance the electrical resistance does notexceed 1 ohm.Earthing Continuity VerificationIf required, an earth continuity test canbe performed by testing between theearth pin on the products lead and aexposed piece of metal on the case andthe tap body.1. Turn the filter anti-clockwise.NOTE: For safe operation, the filter cartridge should bereplaced every 6-12 months, or earlier if you notice apersistent reduction in water pressure from the appliance oran unpleasant taste or odour in the water.To Replace Filter:• Turn the filter anti-clockwise (fig.1) and pull the cartridgedown. Have an absorbent cloth ready as a small amountof water will be released as the filter is removed. Thecartridge should release from the filter head.• Replace with a new filter by gently pushing up, engagingthe key and turning the filter clockwise until the filterclicks or locks into place.• Perform the replace filter steps flush by following theinstructions in section 2.4.2 on page 14.Warning! Not changing filtration cartridges when required,may cause the water to become biologically unsafe.If the Zip Hydroboil is switched off for a long period of time(e.g. More than a weekend), run water through the outlet for atleast 5 minutes before consumption.Use only a Zip Filter in this product to ensure effective filtrationand operation. Replacement filter cartridges can be obtainedthrough plumbing suppliers or directly from Zip.Filter replacement instructions are included with the filtercartridge spare part kits.Dispose of the filter cartridge responsibly.Filter ReplacementFig.12. Removethe filter bygently pull-ing down.Fig.2