If the dot or snowflake symbol flashes, the thermostat is in delayed mode, which can last up to 5 minutes. When the thermostat indicates a need for cooling, make sure the oven door is firmly closed and the oven switch is in the on position.
In this case, the symbol for cooling, heating, snowflake or flame flashes. Most Honeywell thermostats will flash during a cool down (or warm up if it’s a heat pump) delay. This delay function protects the compressor too soon after a shutdown cycle or power failure.
Often, when there is a problem with the flashing lights, the air conditioner also turns off, which means it is blowing hot air. You can turn off the power switch of the AC device, wait a few seconds, and then turn it back on. With some, the device returns to normal operation.
The cooling indicator normally flashes when the thermostat is in delay mode. If the cooling is off, the thermostat does not turn it on for 5 minutes to avoid damaging the compressor.
The most common cause of air conditioning cracks and insufficient cooling are dirty air filters. Dirt in the AC filters blocks the passage of cold and hot air through the ducts. It can also cause the evaporator coil to freeze and block the passage of cold exhaust air.
Two flashing snowflakes in the center of the right side of the thermostat display indicate that Tstat has been in delay mode for approximately 5 minutes. This mode protects the compressor from failures associated with a sudden and unintentional change of mode change from heating to cooling. This is normal operation.
Here are the steps to reset the AC thermostat.
Clean the inside of the HVAC
If the cooling flashes, it means that cooling is required, but wait for the time to expire before ringing the bell.
Each snowflake symbol means that the air conditioner is operating in cooling mode (i.e., discharging cold air). This means that your air conditioner is in ventilation mode, acts as a fan and does not ■■■■ out hot or cold air, only ambient air.
Press the system button to set the thermostat to heating, cooling or shutdown mode. Press the button again to change the setting. The screen shows the selected setting. On the right side of the screen, the up and down arrow buttons control the temperature settings.
If not, reset the thermostat. Open the thermostat and remove the wires from the R and C terminals and remove the batteries for two minutes. You replace. Lower the thermostat temperature below room temperature and hear a click again.
Make sure the thermostat is set to heating and check that the “heating on” button is flashing. Indicates that a safety timer has been activated to protect the thermostatic compressor. When it stops flashing, the thermostat should return to heating mode.
The snowflake icon () will be displayed (not flashing) when the SYSTEM switch is in the cool down position. The snowflake and flame symbols are displayed (flashing) when the thermostat is in lockout mode to prevent the compressor from spinning too fast.
You can also click here to learn how to reset your thermostat. To perform a factory reset, press and hold the setup button while removing and installing a battery. The button must then be connected to the doorbell and other Honeywell ActivLink devices.
Okay, your thermostat controls two units: 1) the air conditioning (cooling) and 2) the oven (heating). If you set something to cool it means you are talking to the air conditioner.
Honeywell 6000 Series (TH6110D / TH6220D / TH6320U)
Your heater may have a wiring problem that requires the help of a Scott Temperature specialist. All lights flash slowly. This means that the fan motor of the heating system is unlikely to be running. This part distributes the hot air from the oven to your home.