.wsite-headline,.wsite-header-section .wsite-content-title {} _W = _W || {}; _W.securePrefix='www.grayfurnaceman.com'; _W = _W || {}; What does it mean?Maybe it is getting the holiday spirit.I wish it was, and happy holidays to you. {} function initFlyouts(){ When you draw line of vacuum, it will be okay. com_userID = "10667336"; When it is flashing fast the furnace is providing heat to the home. My Ducane furnace flashes 4 times, runs for 5 minutes, and then the burner goes off. Therefore, it is nearly impossible to describe every flash code event for every furnace for every manufacturer. .wsite-elements.wsite-footer div.paragraph, .wsite-elements.wsite-footer p, .wsite-elements.wsite-footer .product-block .product-title, .wsite-elements.wsite-footer .product-description, .wsite-elements.wsite-footer .wsite-form-field label, .wsite-elements.wsite-footer .wsite-form-field label{} _W.themePlugins = []; _W.recaptchaUrl = "https://www.google.com/recaptcha/api.js";