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. Featured Video. Clean and I still get the same code what could be the problem the furnace is. Free repair advice! 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. I have a 95% efficient tempstar furnace model N9MSE that my wife and I purchased 9 months ago. Ive checked the airflow, and drains, and everything seems to be clear. When to call a professional to repair your Tempstar furnace. Indicated this may be the pressure … read more Gas Furnace Troubleshooting and Repair - Flash Codes. It was the greatest purchase I could have made. Most units will light 3 times, then go into hard lockout. Furnace blower runs all the time. Find the most common problems that can cause a Tempstar Furnace not to work - and the parts & instructions to fix them. Therefore, it is nearly impossible to describe every flash code event for every furnace … 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. When this happens, it can be tough to know whether to attempt a repair on your own or to contact a trained HVAC technician. :confused: Its late August, thought I'd check out the american standard freedom 90 furnace. 2 possible causes and potential solutions . I purchased my Trane in 2013 from a local heating and air contractor. 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. It worked fine last spring, but now flashing 3, for a "pressure switch error". Video. 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. It turns on and cycles 1 or 2 times the shuts off and flashes 3 times. I've checked the airflow, and drains, and everything seems to be clear. Despite the reliability of a Tempstar furnace, you will inevitably come to a time when your unit starts to experience some performance issues. Your Account. 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 14 years old and I have never ever had any problems until now any recommendations ? It turns on and cycles 1 or 2 times then shuts off and flashes 3 times. Within the manufacturers, the flash codes can be different from one furnace to the next. Your Account. High limits and you. 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. I have a 95% efficient tempstar furnace model N9MSE that my wife and I purchased 9 months ago. Nearly every manufacturer has different flash codes. View solutions. En español Live Chat online. Many of the failures of modern furnaces can be traced to simple maintenance. 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. 1-800-269-2609 24/7. 1) furnace does not even start up, but it has power. Furnace model N9MSE that my wife and I still get the same code what could be the problem furnace... 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