Major problems cannot be fixed or are too difficult to fix.

There is a major failure to comply with a consumer guarantee when:

• you would not have purchased the product if you had known about the problem.
• the product is significantly different from the description; sample or demonstration model you were shown. For example, you ordered a 6 channel mixer and a 4 channel mixer was delivered.
• the product is substantially unfit for its normal purpose and cannot easily be made fit within a reasonable time.  For example, you ordered an acoustic-electric guitar, the guitar is fine but the pickup does not work.
• the product is substantially unfit for a purpose that you told the supplier about, and cannot easily be made fit within a reasonable time. For example, you told the seller you needed a PA for a large room, and provided details, but they recommended and sold you one that is not nearly powerful enough.
• the product is unsafe. For example, there are exposed wires, or a button battery is not secured according to Australian standards.

The remedy you are entitled to will depend on whether the failure to comply with the guarantee is major or minor.