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My trane furnace model TUHMB060ACV3VA is stuck on low heat.

Customer Question
My trane furnace model...

My trane furnace model TUHMB060ACV3VA is stuck on low heat. fan is on and air s luke warm, but definitely not high heat, and is only 61 when setpoint is 68. Staying that way all day. No obstructions in intake or exhaust and no error codes or fault LEDs flashing. Has been working perfectly until now.

Contractor's Assistant: Did you double-check the thermostat's settings? And what about the filters?

Checked both. Cycled power and then thought maybe lost the thermostat program, but it seemed to be all there. Could it be a pressure switch issue?

Contractor's Assistant: Do you plan on doing the work yourself?

Yes. I'm an electrician. In fact, I work on large furnaces every day here at work, but that's not helping me here. I'm getting ignition and heat - just not enough.

Contractor's Assistant: Anything else we should know to help you best?

How can I tell if the thermostat is really calling for more heat than I'm getting?

Submitted: 1 month ago.Category: HVAC
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Answered in 30 minutes by:
12/28/2017
HVAC Technician: gotoman for ac, HVAC Technician replied 1 month ago
gotoman for ac
gotoman for ac, HVAC Technician
Category: HVAC
Satisfied Customers: 5,292
Experience: 51 years of experience install design and repair of all makes and models of AC
Verified

Russ here. Just picked up question. Go to furnace and jumper from W1 to W2 and it should kick into second stage heat. Russ

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