Recovery Tank Blockage Resolved in Wellingborough

Details below of a scrubber dryer problem we resolved recently that was caused by a recovery tank blockage. The customer at a designer retail store had reported that their floor cleaning machine was not extracting any water during the cleaning operation resulting in dirty water being left of the floor. The store was located in Wellingborough, Northamptonshire, around 11 miles from Northampton itself. The local retail industry in Wellingborough is concentrated in the Swansgate shopping centre, though there are numerous retail parks and supermarkets outside the city.

Tracing the Root Cause

Our engineer hit the road and made his way to the designer store in Wellingborough, to assess the nature of the problem that the customer was experiencing with their floor cleaning machine. As a designer store, the floor space needed to be kept in impeccable condition, to match the high-end nature of the clothing being sold there. To keep the vibe feeling exclusive and sophisticated, the company cleaned the floors with a Viper Fang 20HD Battery Operated Walk Behind Scrubber Drier.

When our engineer arrived, he gave the machine a full inspection. During his diagnostic testing, our engineer found that the inlet to the machines recovery tank was completely blocked. To resolve this all that really needed to be done was to remove the blockage and give the tank a thorough clean. After doing this, our engineer tested the machine and found it to be in full working order again.

Before leaving, he gave the staff advice on full preventative maintenance, including keeping the recovery tank clear of debris and clean.  It’s worth noting that A3 Machines alone maintain over 800 Viper Cleaning machines and in our experience the majority of calls we receive could have been avoided if regular maintenance checks were to be carried out.

Viper Fang 20HD Recovery Tank Blockage
Viper Fang 20HD Scrubber Dryer

Viper Fang 20 HD Maintenance

The Viper Fang 20HD is a medium sized battery powered scrubber dryer and like any machine it benefits from regular checks and maintenance. The following maintenance procedures are taken from the User Manual which you will find a link to on the following page: Notice that it’s recommended to check the recovery tank for debris on a daily basis, doing so will avoid a recovery tank blockage in future.


  • Remove pad driver / brush and clean with approved cleaner.
  • Drain recovery and solution tanks completely and rinse out with clean water. Visually check the recovery tank for debris and clean out as necessary.
  • Raise squeegee assembly off floor and wipe it down with a damp towel. Be sure to store the squeegee in the up position.
  • Remove the float shut-off assembly and rinse it out with clean water.
    Clean machine with an approved cleaner and a damp towel. Don’t spray water to clean the outside of machine to avoid damage to motor and wiring.
  • Recharge batteries.


  • Check fluid level in batteries.
  • Check batteries for loose or corroded cables.
  • Keep battery tops clean from corrosion.


  • Check machine for leaks and loose fasteners.
  • Lubricate all grease points and pivot points with silicon spray and approved grease.
  • Place machine over a floor drain. Flush solution system by pouring 10 liters of hot water and approved alkaline detergent into the solution tank and running machine (with solution control on) for 45 seconds. Turn machine off and let it sit overnight. Then next day, drain the remaining solution and rinse the solution tank out with clean water.

The manual also details steps that can be take to clean the vacuum system recovery filter and clean water solution tank filter.

Clearing a Recovery Tank Blockage at Designer Store in Wellingborough

To contact the A3 Machines service team for help or to find out more about servicing and repairing Viper Cleaning Machines or similar please visit:

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