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.
As an indication of our 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 that was purchased within the past two years and does not work properly because of a manufacturing defect. Please save your receipt to confirm date of purchase. If no receipt is available, we can determine the date of manufacture by the serial number stamped on the heating unit to estimate the date of purchase. Please DO NOT send your unit to us until you call our Customer Service Department at 800-253-0854 for instructions. We can often resolve the issue for you over the phone.