A smart thing is that the Nest thermostat can sometimes show a “Delay” message. This causes malfunctions in the heating control, the room air temperature drops. To fix this problem, there are proven methods. The first method will have to be done again after a while, the second is relatively complicated, but it will help to finally eliminate the malfunction.
When such a signal text is displayed, you need to start with the study of the most elementary – check the charge. For an urgent and short-term solution, remove the panel and connect it via cable to the charger for two hours. For a full charge, not only the thermostat is connected, but also the heater.
The latest models of Nest (Learning and E) already have rechargeable lithium-ion batteries, but they only serve as a backup source in case of a sudden power outage in the house and to save the settings. These batteries are not replaceable.
Before use, carefully study the capabilities of the device and the features of its operation. The USB socket with a standard connector is not the main power source, but an emergency option.
The original Nest had replaceable AAA alkaline batteries. In devices of the latest modifications, the batteries are located out of reach. To get the batteries, you need to disassemble the entire case.
With dead batteries, the thermostat will not work correctly, showing the text about the delayed start or delay on the display.
In a short time, you can find an elementary solution to return the thermostat to working condition and eliminate the “Delay” error:
Typically, it takes 30 minutes to recharge the batteries, and at least two hours when fully discharged.
For many Nest models, it is enough to receive electricity from climate equipment to heat or cool the air. This is quite enough to create an uninterrupted operation of the device.
In some cases, electrical wires from heating or cooling appliances connected to the thermorheostat terminals cannot provide the required power. In such a situation, connect the common cable “C”.
Before starting the adjustment, go to the settings on the device and select the “Equipment” button. The display will show all detected wires. Usually yellow – cooling wire, white – heating, green – ventilation, red – network cable. The common wire is made in a blue braid and is connected to “C”. It does not consume much power and will take the minimum amount of energy from the heating system.
A beginner may not immediately find the blue wire he is looking for. For this, there is the following algorithm of actions:
A high-quality connection of the thermostat is possible with the impeccable condition of the general electrical wiring in the house. Check its status before doing centralized climate control via smart device.
After installing the cable, does the “Delayed” message still occur? So, the reason lies in other defects:
Like any electrical appliance, the Nest thermostat works efficiently and smoothly with constant mains voltage. The presence of the connected wire “C” is necessary to stabilize the current supply.
If you do not have special knowledge of handling electronic equipment, you have not been trained in the installation of electrical wires, then there is a Nest Pro service for you, which you can contact in your region. Specialists will diagnose the equipment, find and eliminate all malfunctions, interface problems. They will also help you deal with the “C” wire – connect it to the power socket on the thermostat.