If YOU have a Problem, Then… | Honeywell CT3650 guide

IF YOU HAVE A PROBLEM

	Table 4. Solution Guide.


If...	Then…
Display does not appear.	• Make sure the batteries are installed correctly.
	• Make sure the thermostat is mounted and latched on the wall plate.
	Mount and latch the thermostat on the wallplate if it is not.

Temperature settings will not change	• Make sure the temperature setpoints are:
(example; cannot set the heating higher	40 to 90°F (4.5 to 32°C) for heating.
or the cooling lower).	45 to 99°F (7 to 37°C) for cooling.

Heating does not come on.	• Make sure the heating setpoint is above the room temperature.
	• Make sure the circuit breaker is not tripped, and reset it if necessary.
	• Make sure the power switch at the equipment is in the On position, and
	set it to On if it is in the Off position.
	• Wait five minutes for the system to respond.
	• Set the system key to Heat.

Cooling does not come on.	• Make sure the cooling setpoint is below the room temperature.
	• Make sure the circuit breaker is not tripped, and reset it if necessary.
	• Make sure the system switch at the air conditioner is in the On position,
	and set it to On if it is in the Off position.
	• Wait five minutes for the system to respond.
	• Set the system key to Cool.

System on indicator( = heat,	=	Wait five minutes after seeing the flame or snowflake and check the

		registers again. If no there is no hot or cool air coming from the registers,
cool) is lit, but no warm or cool air is
cool) is lit, but no warm or cool air is		refer to Heating does not come on or Cooling does not come on. If all of this
coming from the registers.
coming from the registers.		has been checked, contact your local heating and cooling contractor.


Display flashes during programming.		The temperature setting limit has been reached. The heating setting range
		is 40°F to 90°F (4.5°C to 32°C). The cooling setting range is 45°F to 99°F
		(7°C to 37°C).

Temperature change occurs at the		1. Check the program times for the period in question.
wrong times.		2. Make sure the AM and PM settings are correct.

3.Make sure the current time and day settings are correct.

4.Reprogram any incorrect settings.

NOTE: If your thermostat is set for Smart Response control, the start times occur before your programmed comfort periods.

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CT3650 specifications

The Honeywell CT3650 is a state-of-the-art thermostat designed for optimum home climate control. This versatile device integrates advanced technology with user-friendly features, making it an ideal choice for homeowners seeking convenience and efficiency in temperature regulation.

One of the primary features of the CT3650 is its Wi-Fi connectivity. This allows users to control their home heating and cooling systems remotely via a smartphone app, providing flexibility and ease of use. Whether at work or on vacation, homeowners can adjust their thermostat settings from anywhere, ensuring comfort upon their return and promoting energy savings while away.

The CT3650 incorporates a color touchscreen display, offering an intuitive interface that makes navigation straightforward. Users can easily set schedules, view current conditions, and make adjustments with a simple tap. The vibrant display also allows for customizable color options, enhancing its aesthetic appeal to fit seamlessly into any home decor.

Another noteworthy characteristic of the Honeywell CT3650 is its Smart Response Technology. This feature learns the heating and cooling behaviors of the home and adjusts the temperature in advance to reach the desired setting by the programmed time. This not only enhances comfort but also increases energy efficiency, helping to reduce utility bills.

The CT3650 thermostat is compatible with various heating and cooling systems, including multi-stage systems, gas, electric, and heat pump configurations. This versatility ensures that homeowners can utilize the CT3650 with their existing systems without additional modifications.

Energy-saving capabilities are a highlight of the CT3650. It features an Adaptive Intelligent Recovery function, which calculates the optimal run time for the system to reach the target temperature at the scheduled time. This minimizes energy waste and maximizes efficiency, contributing to a more sustainable home environment.

Furthermore, the Honeywell CT3650 facilitates easy installation and setup. With straightforward wiring and setup instructions, users can quickly integrate the thermostat into their existing HVAC systems without requiring professional assistance.

In conclusion, the Honeywell CT3650 thermostat combines cutting-edge technology with user-centric design. With its Wi-Fi connectivity, intuitive touchscreen, smart response features, and compatibility with multiple systems, it stands out as an excellent choice for homeowners aiming to achieve a comfortable and energy-efficient living space.