Unfortunately, we are no longer able to repair Thermophore units, because of a variety of regulatory, quality and liability concerns.
We do not recommend trying to repair or replace any components yourself, as it may cause a safety hazard.
Because we have such complete confidence in our products, we have extended our warranty coverage to two years from the date of purchase on all Thermophore units.
We will replace any Thermophore pack returned to us by a consumer with a receipt showing that it was purchased less than two years ago, that does not work properly because of a manufacturing defect.
Please remember to save your receipt, and feel free to call our customer service department at 888-843-7664 with any questions.
Thank You, Thermophore.com