Ecobee Thermostat Troubleshooting

The tables below enlist different technical problems with Ecobee thermostats and provide possible solutions. Each manual contains the most widespread issues and troubleshooting instructions for them. Please, note that the solutions aren’t described in detail. If you know you will fail to fix issues up, don’t hesitate to ask for professional help.

Ecobee EMS Si Thermostat Troubleshooting

Problem Solution
Furnace Air FilterFurnace filter needs to be cleaned or changed.
UV LampUV lamp needs to be changed.
Low Temp AlertTemperature in the home is too low.
High Temp AlertTemperature in the home is too high.
Heat Not RespondingThe system has failed to heat the home.
Cool Not RespondingThe system has failed to cool the home.
Maintenance ReminderHVAC system due for regular maintenance.
Auxiliary Heat Run TimeAuxiliary heat source is running too often.
Auxiliary Outdoor TemperatureYour EMS Si auxiliary heat has been called to run when the outdoor temperature exceeds the programmed set point.

Ecobee ecobee3 Thermostat Troubleshooting

Problem Solution
If your ecobee3 does not power on, please check the following:Check that all wires are properly inserted into the terminal blocks at the thermostat. Tug on the wires to ensure they are not loose.
Some HVAC equipment has a safety switch that cuts off power to the equipment if the equipment cover panel is not closed properly. Please ensure the cover panel of the equipment is closed properly
If you installed the PEK, ensure R wire is connected to Rc only and G wire is inserted properly into the terminal.
If you have a multi-meter, please check the AC voltage between Rc and C or Rh and C and ensure it is 24V.
If your device still does not power on, please call ecobee support

Ecobee Smart Thermostat Troubleshooting

Problem Solution
Low BatteryThe battery in your Thermostat will need to be changed soon.
Furnace Air FilterYour furnace filter needs to be cleaned/changed.
Ventilator FilterYour ventilator filter needs to be cleaned/changed.
UV LampYour UV lamp needs to be changed.
Humidifier FilterYour humidifier pad needs to be cleaned/changed.
Comms faultThere is no communication between the Thermostat and the Equipment Interface module.
Low Temp. AlertThe temperature in the home is too low.
High Temp AlertThe temperature in the home is too high.
Low Humidity AlertThe humidity in the home is too low.
High Humidity AlertThe Humidity in the home is too high.
Heat Not RespondingThe system has failed to heat the home.
Cool Not RespondingThe system has failed to cool the home.
Maintenance ReminderYou are due for regular maintenance.
Auxiliary Heat RunTimeYour auxiliary heat source is running too often.
Auxiliary Outdoor TemperatureYour auxiliary heat source is running at higher than expected outdoor temperatures.