LED Scrolled Message Temp Display ON for 0.250 seconds and OFF for 0.250 seconds with a 2 second pause between codes. Installation and removel was done on a sloppy winter day, they put down runners on the floors and stairs and when they left, there wasn;t any sign of someone being in our house. I spent a miserable cold night last night. They had the best price and did a great job on the installation. Anyway by this time the furnace overheated as expected and shut down due to no supply air from the non-functioning fan. My furnace was throwing a trouble code. The hot surface ignitor, blower motor-heat speed and blower motor-cool speed will be turned ON for 10-15 seconds each. When your Carrier furnace suffers a malfunction it uses two digit number codes to alert you. After a storm knocked out my power, twice, my furnace would cut on but then cut off once it reached 69 degrees. .wsite-elements.wsite-footer h2, .wsite-elements.wsite-footer .product-long .product-title, .wsite-elements.wsite-footer .product-large .product-title, .wsite-elements.wsite-footer .product-small .product-title{} If a system problem occurs, a blinking LED shows a fault code. LED Scrolled Message Temp Display ON for 0.5 seconds and OFF for 0.5 seconds with a 2 second pause between codes. Flash code 31 (3 short flashes/ 1 long) within a short period of time 2. .wsite-headline-paragraph,.wsite-header-section .paragraph {} I highly recommend them! {"navigation\/item":"