Most of our manufactured products are sold with warranties. Warranty periods, which vary by product components, generally range from 1 to 10 years; however, the warranty period for a limited number of specifically identified components in certain applications is a lifetime. The majority of the products sold have warranties on components which range from 1 to 3 years. The amount charged to expense for warranties is based on management’s assessment of the cost per service call and the number of service calls expected to be incurred to satisfy warranty obligations on the current net sales.

During the three months ended April 1, 2023, we recorded warranty expense at a rate of approximately 1.9% of sales, which was slightly lower than the rate during the three months ended April 2, 2022 of 2.6% of sales. The decrease in the warranty expense rate in the three months ended April 1, 2023 is a result of servicing a higher number of warranty claims with internal team members, as opposed to higher-cost contract labor in the first half of 2022 due to a then tight labor market.

The following table summarizes current period charges, adjustments to previous estimates, as well as settlements, which represent actual costs incurred during the period for the three months ended April 1, 2023 and April 2, 2022. The reserve is determined through assessing our claims history. Of the accrued warranty reserve of $15.5 million at April 1, 2023, $12.2 million is classified within accrued expenses as current liabilities on the condensed consolidated balance sheet at April 1, 2023, with the remainder classified within other liabilities as non-current liabilities. Of the accrued warranty reserve of $15.4 million at December 31, 2022, $12.4 million is classified within accrued expenses as current liabilities on the condensed consolidated balance sheet at December 31, 2022, with the remainder classified within other liabilities as non-current liabilities.


	Beginning		Charged							End of
Accrued Warranty	of Period		to Expense		Adjustments		Settlements			Period
(in thousands)
Three months ended April 1, 2023	$	15,388	$	7,239	$	922	$	(8,006	)	$	15,543

Three months ended April 2, 2022	$	13,504	$	9,148	$	750	$	(7,081	)	$	16,321