Was reading a post you had about a open high limit device and tried

Open High Limit Device Trane Furnace. Trane Furnace Open Limit Device Trane Furnace Where are the high limit device located on a Trane XE 90 The Assuming all the vents in the house are open, the furnace might not have enough return

To know for sure you would need to measure the air coming out of the supply, all furnaces have a recommended heat rise usually 35‐65⁰ which would mean if its 68 on the house the temp coming out of the supply should be 110 to 130, this won't be at the vent it will be at the unit itself. Unplug the connector and check the resistance, pins 1 and 7 on XB80.

I have an open limit code after putting in a new limit device. Trane

Unplug the connector and check the resistance, pins 1 and 7 on XB80 Customer: Trane XL80 giving a 4 blink code, open high limit device.only, I have no idea where to start to find the problem device Thehvacguy | Certified HVAC Universal Technician,Lic plumbing contractor, 35 yrs exp

Furnace High Limit Switch Tripping? Here's What to Do HVAC Training Shop. From https://www.justanswer.com/ythiJustAnswer Customer: Trane xb80 furnace throwing 'open high limit device ' code.JustAnswer Customer: Need assistance due. Where are the high limit device located on a Trane XE 90 The

Having an issue with my furnace I have a 4 blink code reading open high. When a heat call ends, my furnace control board (Emerson 50M56-495) is supposed to keep the inducer fan on for a little bit (maybe 10 seconds) and keep the circulator fan on for another minute or so (it can be set to 60, 100, 140, or 180 seconds via dip switches) to dissipate the heat. Assuming all the vents in the house are open, the furnace might not have enough return