What does Carrier and Bryant 32 mean?

On Carrier 59TP6A two-stage variable speed ECM multipoise condensing gas furnace (Series 2, and Series 3 80-20, 100-20, 120-22): The low-heat pressure switch input failed to close on a call for low-heat, or opened during low-heat. If it opens during the 5 minutes after ignition, the next heating cycle is restricted to high-heat. The label lists proper vent sizing, a plugged condensate drain, excessive wind, low inlet gas pressure and water in the vent piping among things to check. On Bryant 926TC two-stage variable-speed ECM multipoise condensing gas furnace: The main (low) pressure switch is open.

Is it safe to keep running my Carrier and Bryant with 32?

Turn it off and call a licensed pro. Call a licensed technician. Venting, condensate drainage and pressure switch checks are combustion safety work. Call a licensed technician. Venting, condensate and pressure switch checks are combustion safety work.

What can I check myself for Carrier and Bryant 32?

Look outside at the furnace vent and intake pipe ends. Make sure snow, leaves or a nest are not blocking them. Look only, do not touch the pipes. Look at the condensate drain line and trap (if you can see it without removing any panel) for a clog, kink or standing water. Turn the furnace power off at the switch or breaker, wait one minute, then turn it back on to see whether the code returns.

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Carrier and Bryant 32 Error Code: Low-heat pressure switch did not close or reopened

Updated October 2026 · Sourced from Carrier and Bryant documentation

🛑 Turn it off and call a licensed pro

Carrier and Bryant 32 means different things on different series:

Carrier 59TP6A two-stage variable speed ECM multipoise condensing gas furnace (Series 2, and Series 3 80-20, 100-20, 120-22): The low-heat pressure switch input failed to close on a call for low-heat, or opened during low-heat. If it opens during the 5 minutes after ignition, the next heating cycle is restricted to high-heat. The label lists proper vent sizing, a plugged condensate drain, excessive wind, low inlet gas pressure and water in the vent piping among things to check.
Bryant 926TC two-stage variable-speed ECM multipoise condensing gas furnace: The main (low) pressure switch is open.

Is it safe to keep running? No. Turn it off and get it checked. Call a licensed technician. Venting, condensate drainage and pressure switch checks are combustion safety work.

32 at a glance

Code / how it shows	Meaning	Applies to
32 Status LED flashes: first digit is short flashes, second digit is long flashes	Low-heat pressure switch did not close or reopened	Carrier 59TP6A two-stage variable speed ECM multipoise condensing gas furnace (Series 2, and Series 3 80-20, 100-20, 120-22)
32 Also: 32.2 Status LED flashes: first digit is short flashes, second digit is long flashes; display shows 32.2	Open main pressure switch (LPS)	Bryant 926TC two-stage variable-speed ECM multipoise condensing gas furnace

Check this first

Only steps a homeowner can do safely. Do not open electrical panels or the burner area.

Look outside at the furnace vent and intake pipe ends. Make sure snow, leaves or a nest are not blocking them. Look only, do not touch the pipes.
Look at the condensate drain line and trap (if you can see it without removing any panel) for a clog, kink or standing water.
Turn the furnace power off at the switch or breaker, wait one minute, then turn it back on to see whether the code returns.

🛑 Stop and call a licensed pro if

Call a licensed technician. Venting, condensate drainage and pressure switch checks are combustion safety work.
Call a licensed technician. Venting, condensate and pressure switch checks are combustion safety work.
You smell gas. Leave the house, do not touch switches, and call your gas utility from outside.
Flame rollout, limit or pressure switch codes that come back after one reset.
Anything involving the control board, gas valve, flame sensor, igniter or venting.
A carbon monoxide alarm sounds. Get everyone outside and call 911 or the fire department.

Safe first steps for any Carrier and Bryant code

Count the LED flashes through the blower door window before you switch anything off. Cutting power can clear the code.
Replace or clean the furnace air filter.
Check the thermostat: correct mode, set above room temperature, and fresh batteries.
Make sure the furnace power switch and breaker are on. If the furnace has locked out, turning the power off and back on once restarts it.
Make sure the gas valve is in the ON position, following the lighting instructions on the furnace label only.
On high-efficiency furnaces, look at the outside vent and intake pipes for snow, ice, leaves or nests (look only, do not take pipes apart).

Sources: Carrier 59TP6A Installation, Start-up, Operating and Service and Maintenance Instructions, Fig. 63 Service Label, p.73; Bryant 926TC Installation, Start-up, Operating and Service and Maintenance Instructions, Service Label (Status Code Table), p.56. Codes are series-specific, so your unit's own manual is the final word. Reviewed October 2026.

Shaun Cain · Certified HVAC & Refrigeration Technician · Ask an HVAC technician

Related Carrier and Bryant codes

13 : Limit circuit lockout 14 : Ignition lockout 24 : Secondary voltage fuse is open 31 : Pressure switch did not close or reopened 33 : Limit circuit fault (limit or rollout switch open)34 : Ignition proving failure 45 : Control circuitry lockout 25 : Model selection or setup error 43 : Low-heat pressure switch open while high-heat switch is closed 10 : L1 polarity fault (rapid flash)15 : Lockout, no blower RPM detected 41 : Blower RPM fault

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