What to do if my York Thermostat air conditioning does not turn on?
If your York thermostat isn't turning on the air conditioning, it might be because the cooling setpoint is set too high. Try lowering the cooling setpoint or lowering the cooling set-point limit.
Why is the display blank on my York S1-THSU21P1 Thermostat?
If your York thermostat display is blank, it indicates a lack of proper power. Ensure that the power to the furnace is on and that you have 24vac between R & C.
What to do if both heat and cool come on when calling for cooling with my York S1-THSU21P1 Thermostat?
If your York thermostat is calling for cooling, but both the heat and cool are activated, it means the thermostat equipment jumper is configured for “HP” while your HVAC unit is a Gas/Electric. To resolve this, set the equipment jumper for “Gas”.
What to do if my York S1-THSU21P1 Thermostat heating does not turn on?
If your York thermostat isn't turning on the heating, it might be because the heating setpoint is set too low. Try raising the heating setpoint or raise the heating set- point limit.
General| Brand | York |
|---|---|
| Model | S1-THSU21P1 |
| Type | Thermostat |
| Voltage | 24V AC |
| Stages | 2 Heat / 1 Cool |
| Programmable | Yes |
| Weight | 0.5 lbs |
| Temperature Range | 40°F to 90°F |
Definition of automatic heating/cooling mode.
Warmest temperature for cooling activation.
Temperature range before system activation.
Process of reducing air moisture.
Temperature difference between heat/cool setpoints.
Coolest temperature for heating activation.
Process of increasing air moisture.
Symbol or word on the display.
Thermostat's current operating condition.
Thermostat without time programming capability.
Thermostat with time programming capability.
Cooling with strip heaters for dehumidification.
Same as Deadband.
Program for automatic setpoint adjustment.
Introduction to physical parts and basic screen elements.
Explanation of scrolling display, clock, and key indicators.
Description of setpoint, stage, and status icons.
Identification of icons for Aux Heat, temperature range, and fan status.
Basic instructions for initial setup and core functions.
Using special operational modes for energy saving or emergencies.
Step-by-step guide for physical installation.
Guide to terminal designations, system wiring, and diagrams.
Explanation of physical connections and internal jumpers.
Procedure for testing system outputs.
Customizing screen brightness and display options.
Choosing how information is displayed on the screen.
Monitoring equipment usage and setting service reminders.
Setting daily heating and cooling schedules.
Selecting system operation modes and programming types.
Configuring temperature restrictions and system cycles.
Defining temperature differences for stage activation.
Setting fan schedules and automatic temperature adjustment.
Configuring humidity control parameters.
Configuring heat pump operation based on outdoor temperature and dual fuel systems.
Setting up and programming the auxiliary output.
Enabling energy-saving ventilation modes.
Procedures for resetting settings and securing the device.
Accessing advanced diagnostic and calibration options.
Comprehensive table detailing all configuration settings.
Solutions for typical thermostat and system operational problems.
Information on the manufacturer's warranty terms and limitations.
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