What Does Es Mean On Honeywell Thermostat?

The E5 (or ES) alert indicates that an internal protector in your Sensi thermostat’s power supply has tripped and your thermostat may no longer effectively control the temperature inside your home.

What are the codes on a Honeywell thermostat?

Honeywell Thermostat-Specific Error Codes

• 164—Heat pump must be serviced.
• 168—Wi-Fi radio error.
• 171—Set date and time.
• 173—Thermostat temperature sensor error.
• 175—AC power resumed.
• 181/182—Replace air filter.
• 184—Install a new humidifier pad.
• 185—Put in a new dehumidifier filter.

Should thermostat be on E or F?

Factory-set in the “F” position, the thermostat fan operation switch is labeled FUEL SWITCH. It’s the correct setting for most systems. The switch should be set to “E” if you have an electric heat system.

How do I reset my Honeywell thermostat?

To reset your Honeywell Thermostat, switch it off, remove the batteries, and put them back in reverse polarity: negative terminals facing positive. After 5 seconds, reinsert them the right way.

Why is my thermostat in delay mode?

Each thermostat model has a different display message when a delay occurs. This delay can be up to five minutes under normal operating conditions. A delay is used to protect your heating and cooling equipment from coming on too quickly (known as short cycling), which can cause damage.

What does E 53 mean on Honeywell thermostat?

Honeywell thermostat error code 53 This code indicates failing outdoor sensor.

How do I read the date code on a Honeywell thermostat?

The first two digits are the ending two digits of the ‘Year’ and the last two digits are the two digit ‘Week’ of that particular ‘Year’. Example: usually the part number is written or stamped or etched into the product and there may be a space and then four other digits are showing; such as part number: LSA1A 1925.

What does e mean on thermostat?

emergency heat
E. Some thermostats for heat pumps have an E terminal, which toggles emergency heat on or off. Emergency heat should only be used on very cold days when the heat pump is unable to keep the house warm.

Where does the e wire go on a Honeywell thermostat?

The E terminal has a back-up heat source. If you have a heat pump package unit, the E terminal should be wired directly to the heating relay or the stripboard of the air handler.

Where does the e wire go on a Nest thermostat?

1 Answer. The ‘E’ typically goes to what is called ’emergency heat’ which is often the same as and is connected with the ‘AUX’ (auxiliary heat) used with a heat pump system.

How do I reset my Honeywell T3 thermostat?

How to factory reset the schedule for the T3 range thermostats?

1. Go to parameter 15 by pressing the “+” button.
2. Press the “tick” button to edit the parameter.
3. Change the parameter from 0 to 1.
4. Confirm with the “tick” button.
5. Press “return” button as many time as needed to exit this menu.

Does a Honeywell thermostat have a reset button?

The Honeywell T5, T5+, and T6 models have quick access reset mode without a button. If you press and hold the MENU button, a reset option will appear. Select the RESET option and confirm with the OK button. Your Honeywell T5, T5+, or T6 thermostat is now reset.

How do you manually reset a thermostat?

Here are the step-by-step reset instructions:

1. Turn your thermostat off by switching it to the off position.
2. Find the breaker that powers your HVAC system and turn it off.
3. Wait 30 seconds and turn the breaker back on.
4. Turn your thermostat back on.

How long is the delay on a Honeywell Thermostat?

The thermostat has a built-in five-minute delay on a request for air conditioning. This is for the purpose of protecting your air conditioning compressor from short cycling. This allows the pressure in your air conditioning compressor time to stabilize before starting.

What color is the C wire on a thermostat?

blue wire
The blue wire on the thermostat is the Common or “C” wire.

How do you turn off the schedule on a Honeywell Thermostat?

To clear the program schedule on your Honeywell Thermostat, press the “Hold” button. For all scheduled periods, this will overrule the set temperature. The programmed schedule is cleared when you hold down the Hold button, and you will be prompted to enter a new temperature setting for the thermostat.

What does E1 mean on Honeywell thermostat?

An E1 error indicates that the closed position of the valve has not been detected. To resolve this, please unmount the Smart Radiator Thermostat and make sure that the mounting bracket is properly tightened to the valve body.

What does Error 89 mean on a Honeywell thermostat?

Honeywell thermostat error code 89 The 89 error code stands for “Cooling/heating unit missing”.

How do you read a 4 digit date code?

The date code is a four-digit number. For example, 0443. The format of the date code is mostly in the form of a YYWW format. The first two digits (YY) represents the last two digits of the year while the last two digits (WW) stand for the week of the year.

How do I read my Honeywell serial number?

Serial Number 11256D0521: 11 = Year 2011. 256 = day 256th of year = September the 13th.
Where the Year code (which represents the year where the device has been manufactured) can be:

1. A=1985.
2. B=1986.
3. C=1987.
4. D=1988.
5. E=1989.
6. F=1990.
7. G=1991.
8. H=1992.

Where is the CRC on my Honeywell thermostat?

The MAC ID and MAC CRC represent the alphanumeric code displayed on the thermostat screen during the registration process. It is also located on the thermostat registration card inside the thermostat packaging. You can also find it on the back of the thermostat simply by taking the thermostat off the wall plate.