NOTE: The item you have chosen is actually a service. Acme Controls has been repairing Flame Safeguard controls for almost 80 years. Our repair/exchange service for this item requires you to send Acme a repairable 2001200150126200+ core. If we have a repaired 2001200150126200+-REB already in stock, we can ship our unit to you first, and then you will have to ship your old core unit back to Acme within 10 days to avoid a product dependent minimum surcharge. If we are out of stock, you will have to ship your 2001200150126200+ core into us, and we will then repair your unit and send it back to you, usually after 3-5 business days in our shop.