What does flashing service indicator mean on American Standard Temperature Controller?
If the service indicator on your American Standard Temperature Controller is flashing on and off, it indicates a Control EEPROM write error. To resolve this, press any key and then check and re-enter your setup choices.
Why fan does not operate properly in heat or cool mode on American Standard Temperature Controller?
If the fan on your American Standard Temperature Controller isn't working correctly in heat or cool mode, the possible causes are: * Incorrect wiring. * Heating or cooling equipment inoperative. To solve this: 1. Correct the wiring. 2. Repair the system.
Why heating cycle too fast or too slow on American Standard ACONT401AN21MA?
If the heating cycle on your American Standard Temperature Controller is too fast or too slow, resulting in narrow or wide temperature swings, the location of the control or the size of the heating system might be influencing the cycle rate. Verify the cycle rate adjustment in Step 27.
Why cooling cycle too fast or too slow on American Standard Temperature Controller?
If the cooling cycle is too fast or slow on your American Standard Temperature Controller, it may be influenced by the location of the control or the size of the cooling system. Verify cycle rate adjustment Step 19.
Why room temperature overshoots on American Standard ACONT401AN21MA Temperature Controller?
If the room temperature overshoots when using the Energy Savings Key or changing the Heat/Cool settings by more than 2 degrees on your American Standard Temperature Controller, it may be caused by oversized heating or cooling equipment. The control cannot respond quickly enough to prevent overshooting. To resolve this, set the Control Response rate to "Fast" - Step 33.
General| Brand | American Standard |
|---|---|
| Model | ACONT401AN21MA |
| Category | Temperature Controller |
| Language | English |
Extended warranty for the Comfort Control to original and succeeding owners in the US and Canada.
Changes system mode to Heat, Emergency Heat, Cool, Automatic, or Off for HVAC operation.
Used to raise or lower the Heat or Cool temperature settings on the control.
Selects indoor fan operation mode: automatic or continuous.
Manages filter replacement reminders by displaying remaining days and resetting the timer.
View outdoor temperature by pressing the FILTER/OD key when an outdoor sensor is installed.
Access quick setup for the filter timer (1-180 days) by pressing and holding the Filter/OD button.
Lowers energy consumption by adjusting setpoints for heating (cooler) and cooling (warmer).
Automatically switches between heating and cooling modes to maintain desired comfort levels.
Defines the separation between heating and cooling setpoints to prevent simultaneous operation.
Displays outdoor temperature when an optional sensor is installed via the Filter/OD keypad.
Illuminates LCD and keypad for visibility; backlight stays on for 10 seconds after last key press.
Cycles compressor to improve comfort by removing moisture, controlling temp 1-2 degrees below setpoint.
Prevents tampering by locking keypad; press UP/DOWN arrows simultaneously to lock/unlock.
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