Product Liability, Deficiency in Service and Defect in Goods: The Three Remedies Compared

One accident, three possible legal shapes. The consumer whose new geyser burst has a defect claim for the worthless geyser, a product liability claim for the scalding and the ruined bathroom, and, if the installer's hands were at fault, a deficiency (or Section 85) claim against him. The three remedies share a forum and a procedure but differ in elements, defendants and what they pay for, and pleading each in its own character is what keeps them all alive. This note compares them systematically.

1. The Three Remedies in Outline

Defect in goods (Section 2(10) with Section 2(6)(c)): any fault, imperfection or shortcoming in the quality, quantity, potency, purity or standard required by law, contract or the trader's claim. The grievance is the article itself: it is not what it should have been, whether or not it hurt anyone.
Deficiency in service (Section 2(11) with Section 2(6)(c)): any fault, imperfection, shortcoming or inadequacy in the quality, nature and manner of performance of a service, including negligent acts and withholding of relevant information. The grievance is the performance: the promised service was not rendered as law, contract or the trade required.
Product liability (Chapter VI, Sections 82 to 87): the responsibility to compensate for harm caused by a defective product or by deficiency in services relating to it. The grievance is the injury: the person hurt, the other property damaged, through the product's defect.

2. The Comparison

Point	Defect in goods	Deficiency in service	Product liability
Statutory seat	Section 2(10); ground under 2(6)	Section 2(11); ground under 2(6)	Chapter VI, Sections 82 to 87
Subject of the claim	The article's own fault or shortcoming	The service's faulty performance	Harm caused by a defective product
Elements	Defect against law, contract or the trader's claim	Shortcoming in quality, nature or manner of performance; negligence for consequential loss	Product, defect, Section 2(22) harm, causation
Fault required	None; the defect itself suffices	Deficiency; conduct-based limbs cover negligence and withheld information	None against the manufacturer (strict); defined bases for servicer and seller
Defendant	The seller or manufacturer in the transaction	The service provider	Manufacturer (s. 84), product service provider (s. 85), seller through the s. 86 gateways
What is compensated	The bargain: repair, replacement, refund with interest	Performance or refund, with compensation for proved loss	Injury, illness, death; other property; attendant mental agony; family's consequential losses; never the product itself or commercial loss
Typical evidence	Laboratory analysis against the standard or claim	The contract, the record of performance, expert opinion	The preserved product, expert and laboratory proof of defect and causation, medical and property proof of harm
Defences	No defect; compliance with standard and claim	Performance as required; no negligence for consequential loss	Causation; Section 87: misuse and alteration, intermediary warnings, obvious dangers

3. Working the Boundaries

The product that only fails: bricked phone, curdled paint, the loss is the product's own value, a defect claim; Chapter VI's harm definition expressly excludes the product itself, so no liability action lies.
The product that hurts: burns, poisoning, the burnt kitchen, product liability, with the defect claim for the price joined in the same complaint under its own head.
The service that fails: the delayed flat, the botched booking, the repudiated policy, deficiency; no product at the centre, no Chapter VI.
The serviced product that hurts: the negligently installed or maintained product that injures engages Section 85 (a product-liability theory) and, for the service's own price and transaction losses, the ordinary deficiency claim, two heads, one opposite party.
The excluded materials: human tissues, blood and organs are not 'products', so transfusion and transplant grievances travel as deficiency against the hospital or blood bank, on negligence principles (the medical standard of Jacob Mathew and the service jurisprudence), not as product liability.
Commercial loss: the shop's lost trade from a failed freezer is outside Chapter VI harm; it is claimed, if at all, as consequential loss in the defect or deficiency frame, subject to the commercial-purpose limits of the consumer definition.

⚠ Key point

Ask what the claim is for. For the article itself: defect, no fault needed, remedy in repair, replacement, refund. For the performance: deficiency, remedy in performance, refund and proved loss. For the injury: product liability, product, defect, Section 2(22) harm and causation, strict against the manufacturer, gateway-based against seller and servicer, and never for the product's own loss or commercial loss. One transaction can carry two or all three, each pleaded under its own head.

4. Related Topics and Provisions

Defect in goods (Topic 13) and deficiency in service (Topic 14): the ordinary remedies in detail
Product liability complete notes (Topic 52): Chapter VI end to end
Harm under Section 2(22) (Topic 22): the boundary that divides the remedies
Defect vs deficiency (Topic 15): the companion comparison within the ordinary remedies