Small Engine Problems? Ask an Engine Mechanic for Answers ASAP
Hello and welcome to JustAnswer!This is James, I'm an Engineer with over 10 years of experience, and I'll be assisting you today.
Sorry to hear your appliance is having issues, please stand by while I find the answer for you, this is not an immediate service however I will try and respond as soon as possible.
Where the mower is on the lowest setting but not sitting low enough this points to a mechanical fault this is not something which is suitable as a DIY repair as such I would return it back to Argos and arrange for a replacement, as it suggests the mechanism has failed since the mower is not at the desired height.