Trane TAYSTAT 340 - User Manual

Trane TAYSTAT 340

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OWNER’S GUIDE

Pub. No. 22-5183-01

Programmable Thermostat

TAYSTAT 340, 350

69-1228-1

Table of Contents

Questions and Answers:

M
Mark WilkersonJul 30, 2025
How to fix a Trane TAYSTAT 340 display that won't turn on?
- M
  Mario GravesJul 30, 2025
  If the display on your Trane Thermostat won't turn on, there are several things you can check. First, make sure the thermostat is properly mounted and latched on the wallplate. Second, verify that the circuit breaker hasn't tripped and reset it if necessary. Also, check the fuse and replace it if it's blown. Finally, ensure the system switch is set to either Heat or Cool, not Off, to provide power to the thermostat.
H
hollybartonAug 3, 2025
Why won't my Trane Thermostat turn on heating or cooling?
- C
  Christina AveryAug 3, 2025
  If your Trane Thermostat's heating or cooling won't turn on, there are several things you can check. First, make sure that the setpoint is above or below room temperature. Reset the temperature or wait for room temperature to fall/rise. Second, verify that the circuit breaker hasn't tripped and reset it if necessary. Also, check the fuse and replace it if it's blown. Next, make sure the system switch at the equipment is in the Heat/Cool position. Finally, wait five minutes for the system to respond.
M
Melanie WigginsAug 9, 2025
Why is my Trane Thermostat not turning on the cooling?
- N
  nunezlindseyAug 9, 2025
  If your Trane Thermostat's cooling won't turn on, there are several things you can check. First, make sure that the setpoint is below room temperature. Reset the temperature or wait for room temperature to rise. Second, verify that the circuit breaker hasn't tripped and reset it if necessary. Also, check the fuse and replace it if it's blown. Next, make sure the system switch at the equipment is in the Cool position. Finally, wait five minutes for the system to respond.
J
Joshua JonesAug 14, 2025
What to do if my Trane TAYSTAT 340 Thermostat is on but there's no air coming out?
- J
  johnwilliamsAug 14, 2025
  If the system on indicator is lit on your Trane Thermostat, but no warm or cool air is coming from the registers, the heating/cooling equipment may turn on the fan only when the equipment has reached the setpoint. Wait a minute after seeing the flame or snowflake and then check the registers.
K
Karen LarsonAug 18, 2025
What does it mean when the system indicator is flashing on my Trane TAYSTAT 340 Thermostat?
- M
  Madison HaynesAug 18, 2025
  If the system on indicator is flashing on your Trane Thermostat, it means the minimum off timer is in effect. Wait five minutes until the minimum off timer is complete.
J
Jessica MezaAug 25, 2025
Why can't I change the temperature on my Trane TAYSTAT 340?
- C
  Curtis MarksAug 25, 2025
  If your Trane Thermostat's temperature settings won't change, it might be because the upper or lower temperature limits have been reached. Ensure that your temperature setpoints are within the range: Heating: 50° to 99° F (10° to 37° C) and Cooling: 50° to 99° F (10° to 37° C).

Trane TAYSTAT 340 Specifications

General

Product Type	Thermostat
Display	LCD
Power Source	24 VAC
Stages	1 Heat/1 Cool
Backlight	Yes
Compatibility	Conventional and Heat Pump systems
Temperature Differential	Adjustable
Programmability	Programmable
Temperature Range	45°F to 90°F
Voltage	24VAC
Mounting	Wall Mount
Weight	0.5 lbs

Summary

FEATURES

PROGRAMMING YOUR THERMOSTAT

CLOCK

Setting the current day and time for thermostat operation.

Organizing Your Schedule

Customizing Your Weekday Schedule

Customizing Your Weekend Schedule

Setting the Weekday Program

Setting the Weekend Program

Temporary Temperature Hold

Indefinite Temperature Hold

System and Fan

System Setting

Selects heating, cooling, or off mode for the thermostat.

Heat and Cool Indicators

Fan Setting

Minimum Off-Timing

TROUBLESHOOTING GUIDE

LIMITED WARRANTY

CUSTOMER ASSISTANCE

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