Unplug from the power supply and remove the control door. However, that doesnt mean theyre perfect. After that, you have to remove the filter from the front panel. Here are a few reasons why your pressure switch might not be closing: It looks like the limit switch is closed (though it should be open). This model includes all the bells and whistles of a high-performance furnace. Use an insulated handle screwdriver to test the transformer. The furnace is running hotter than normal. The lockout can be caused by a gas leak. 1. It's not a matter that your furnace has a lot of features, sometimes, it stops working. While the switch should be open at the start of the ignition process, it should close at some point depending on the model before the process continues. A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. BLINK CODES (GREEN LED) 1 Blink - Soft lockout Reset System power and start over from beginning 2 Blinks - PS Circuit open go to point "F." 3 Blinks - Limit circuit open go to point "D." 4 Blinks - PS Circuit closed Go to point "G." 5 Blinks - Twin Fault (Optional) *Go to point "H." B bshaw Registered Joined Nov 8, 2008 6 Posts Have Two solid. Homeowners decide to go for such an option, in case a single unit wont have enough heating capabilities to keep the whole house warm. The heater is running all the time even when you lower the set point. The R96V includes a warranty and unrivaled dependability. Stainless steel is utilized throughout the heat exchanger for corrosion resistance and thermal fatigue reliability. These units dont use only flashing LED light sequences, but the furnace can blink a few times with a two-second pause (youll find out what these light codes mean below). From what I can tell when the fan starts to blow it looks like 3 blinks a pause then 3 more blinks. The variable-speed ECM motor and humidity control improve airflow while saving energy. Keep all combustible material away from the unit. To ensure proper air movement in the system, you can open all vents and registers and check if the flow is relatively stable throughout all the openings. When cleaning the sensor, be careful, as the component can easily break.

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