Side-by-side reliability

Dometic LR-A21SK vs A.O. Smith NU40T61-403

Compare reliability signal, data confidence, common failures, typical age, and reported repair cost. Warranty window reference: 12–12 months depending on category.

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Model A

Dometic LR-A21SK

Reliability signal — · Insufficient data · data confidence Very Low

3 failure reports · Insufficient data · Very Low confidence

Most common failure: Fire / ignition
Typical failure age: —
Median repair cost: —
Highest reported repair: —

Median months

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% mfr warranty

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After warranty reports

Avg repair cost

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Top failure categories

Fire / ignition3

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Model B

A.O. Smith NU40T61-403