Within the manufacturers, the flash codes can be different from one furnace to the next. En español Live Chat online. I live in SW Virginia, which means it gets pretty hot in summer and cold in winter as we live in the foothills of the Blue Ridge. Nearly every manufacturer has different flash codes. 2 possible causes and potential solutions . Find the most common problems that can cause a Tempstar Furnace not to work - and the parts & instructions to fix them. Free repair advice! It turns on and cycles 1 or 2 times then shuts off and flashes 3 times. I also noticed that if it is at temp in the house, It can maintain it, but shuts down when it needs to continually try to warm the house. Your Account. When to call a professional to repair your Tempstar furnace. It worked fine last spring, but now flashing 3, for a "pressure switch error". I purchased my Trane in 2013 from a local heating and air contractor. Indicated this may be the pressure … read more :confused: Its late August, thought I'd check out the american standard freedom 90 furnace. Your Account. When a furnace is serviced (for complete service of a gas furnace) see here one of the things done on a newer furnace (within the last 25 years) when servicing, is to clean the flame rod as on the left. I have a 95% efficient tempstar furnace model N9MSE that my wife and I purchased 9 months ago. If you realize that a solitary light blinking slowly - Furnace repair service heating installation HVAC ac repair heating rebate Hot Water Tanks, Boilers BC Furnace Vancouver Burnaby Surrey Coquitlam Richmond White Rock Maple Ridge Port Moody Delta Abbotsford Aldergrove Pitt Meadows North Vancouver West Vancouver With a smart gas valve that flashes code 3 (low pressure switch stuck open) I have replaced the switches cleaned the furnace and inducer motor is spotless. Clean and I still get the same code what could be the problem the furnace is. Featured Video. It was the greatest purchase I could have made. Video. 14 years old and I have never ever had any problems until now any recommendations ? Gas Furnace Troubleshooting and Repair - Flash Codes. A "high limit" switch protects the furnace against overheating and damage -- it's located in the output duct, or plenum, of the furnace and turns the furnace off if things get too hot up there.The usual cause of a high limit trip is inadequate airflow -- in your case, because an apparently faulty connection was causing the fan to not run. High limits and you. I also noticed that if it is at temp in the house, it can maintain it, but shuts down when it needs to continually try to warm the house. Working on our Daughters Tempstar furnace model # XXXXX The unit tries to start but after about 30 seconds it stops and the green light flashes in 3 flash sequences. I've checked the airflow, and drains, and everything seems to be clear. It turns on and cycles 1 or 2 times the shuts off and flashes 3 times. Despite the reliability of a Tempstar furnace, you will inevitably come to a time when your unit starts to experience some performance issues. Ive checked the airflow, and drains, and everything seems to be clear. 1) furnace does not even start up, but it has power. Many of the failures of modern furnaces can be traced to simple maintenance. I have a 95% efficient tempstar furnace model N9MSE that my wife and I purchased 9 months ago. Furnace blower runs all the time. When this happens, it can be tough to know whether to attempt a repair on your own or to contact a trained HVAC technician. View solutions. Most units will light 3 times, then go into hard lockout. 1-800-269-2609 24/7. Therefore, it is nearly impossible to describe every flash code event for every furnace … Purchased 9 months ago 3, for a `` pressure switch error '' when to call a professional to your... 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