American Standard NEXIA Silver 724 User Manual (English)

Questions and Answers:

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Matthew RiceAug 15, 2025
Why is my American Standard Thermostat not cooling?
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  nnicholsAug 16, 2025
  Your American Standard Thermostat might not be cooling because: 1. The system mode isn't set to Cool/Auto, or the setpoint is too high. To resolve this, select the correct system mode and/or lower the setpoint. 2. The delta “On” for cooling is set too high. In this case, change the delta “On” setting for cooling mode. 3. The minimum off time delay is being enforced. If this is objectionable, change Control Response settings in the Installers Settings, Comfort Settings Menu. 4. The cooling system may need service. In that case, check/repair the system.
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Jonathan ThompsonAug 18, 2025
What to do if my American Standard NEXIA Silver 724 temperature is incorrect?
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  Marissa SchmidtAug 18, 2025
  If your American Standard Thermostat displays an incorrect indoor temperature: 1. The indoor temperature display may need calibrating. Always allow 1 hour before calibrating after any power cycle. 2. Heat from the touchscreen might be trapped within the body of the control. To resolve this, relocate the control away from any competing air sources or redirect the air sources away from the control.
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Lisa PadillaAug 21, 2025
How to fix American Standard Thermostat display if it will not come on?
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  Natalie RiveraAug 21, 2025
  If the display on your American Standard Thermostat will not come on, it could be due to a loss of 24VAC between R & C at the Control. To resolve this: 1. Check the wiring between R & C. 2. Check the transformer for 24VAC output. 3. Check for a broken or shorted thermostat wire.
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johnperezAug 25, 2025
What to do if my American Standard NEXIA Silver 724 humidity display is incorrect?
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  Bobby DiazAug 25, 2025
  If your American Standard Thermostat displays incorrect indoor humidity, the indoor humidity sensor may need calibrating. Calibrate the humidity sensor to resolve this issue.
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David LewisAug 27, 2025
Why is my American Standard NEXIA Silver 724 not heating?
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  owalkerAug 27, 2025
  Your American Standard Thermostat might not be heating because: 1. The system mode is not set to Heat/Auto, or the setpoint is too low. To resolve this, select the correct system mode and/or raise the setpoint. 2. The delta “On” for heating is set too high. In this case, change the delta “On” setting for heating mode. 3. The minimum off time delay is being enforced. If this is objectionable, change Control Response settings in the Installers Settings, Comfort Settings Menu. 4. The heating system may need service. In that case, check/repair the system.
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Anthony RamirezAug 30, 2025
Why does the fan on my American Standard Thermostat run all the time?
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  Caroline RamseyAug 30, 2025
  The fan on your American Standard Thermostat might be running constantly because: 1. The fan mode is set to “On” or “Circ”. This is intended operation; if objectionable, change the fan mode to “Auto”. 2. The system may not be operating properly. In that case, check/repair the system.
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Justin BlackSep 2, 2025
What to do if heating or cooling is displayed, but no air is coming from the vents of my American Standard NEXIA Silver 724?
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  Scott WilliamsSep 2, 2025
  If your American Standard Thermostat displays heating or cooling, but no air is coming from the registers/vents: 1. The fan delay time may not have expired. Wait one minute for the blower delay to end, then recheck the register/grills. 2. The system might not be operating properly. In that case, check/repair the system.
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Nicole JohnsonSep 5, 2025
Why does my American Standard NEXIA Silver 724 Thermostat overshoot the setpoint in cooling mode?
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  Erika MartinSep 5, 2025
  Your American Standard Thermostat might overshoot the desired setpoint in cooling mode because: 1. The delta “Off” in cooling mode is set to a negative number. This is intended operation; if objectionable, change the delta “Off” to 0 degrees. 2. Cooling overshoot is enabled, and the indoor RH is higher than the target cooling RH. This is intended operation: if objectionable, disable cooling overshoot or raise the cooling target RH. 3. The minimum compressor on time has not been met. This is intended operation; if objectionable, change Control Response settings in the Installers Settings, Comfort Settings Menu.
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Jacob PorterSep 8, 2025
Why does my American Standard Thermostat overshoot the setpoint in heating mode?
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  Stephanie BrownSep 8, 2025
  Your American Standard Thermostat might overshoot the desired setpoint in heating mode because the minimum compressor/indoor heat on time has not been met. This is intended operation; if objectionable, change control response settings in the Installers Settings, Comfort Settings Menu.
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Dennis DiazSep 12, 2025
Why is the fan on my American Standard Thermostat set to “On” but not running?
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  Anthony HughesSep 12, 2025
  The fan on your American Standard Thermostat might be set to “On” but not running because: 1. Smart continuous fan (SCF) is enabled, and the indoor humidity is higher than the cooling target RH (SCF will be displayed on the fan mode button). This is intended operation; if objectionable, disable SCF or raise the cooling target humidity. 2. The system may not be operating properly. In that case, check/repair the system.