Taco zone valve control indicator lights mean power availability, need for heat and the zone control valve position. The green LED light indicates that the control module is receiving power, the yellow LED light indicates that a specific zone needs to be heated, and the red LED light indicates that the Taco zone control valve has been activated.
Are still confused about taco zone valve control indicator lights meaning? Read this article to find out more.
What Do The Indicator Lights On The Taco Zone Valve Control Indicate?
Ever wondered how the house heater works and what those lights mean? The Indicator lights on the Taco Zone Valve Control are of three colors: green, yellow and red.
Green LED light:
The green LED light signals the availability of power. There will be only one green LED light indicator in the Taco zone valve control. It is the topmost LED light on the control panel.
Yellow LED light:
The yellow LED light, however, signals that a particular zone requires heat. The signal for the yellow LED light comes from the thermostat situated in that particular zone. The number of yellow lights on the Taco zone valve control depends on the number of zones you have in your system.
Red LED light:
The red LED light, on the other hand, signals that the valve on a particular zone has been energized. The signal for the red LED light comes from the Taco zone control valve itself. If it is ON and the circulator is functioning properly, the work fluid will flow through the hydronic system.
The red LED lights will be located right next to the yellow LED lights. The number of red LED lights corresponds to the number of heating zones you have.
What To Do When The Green Light In The Taco Zone Valve Control Is Not Lighting Up?
The green light on the Taco zone valve control should always be on to indicate the availability of power to the module. If it is not ON and you have electricity at your home, follow these steps to solve the problem:
Check The Circuit Breakers:
Circuit breakers are usually located in parts of the home with generally less traffic. Try looking for your circuit breaker panel in the basement, the garage or the utility closet. If you live in an apartment, the panel box may be situated in a more central location, such as the hallway.
Once you find the panel, open it. The circuit breakers should be labeled. Turn on the circuit breaker that is connected to the heating system. If the circuit breakers are not labeled, you could ask a person to stand near the Taco zone valve control. Flip on each opened circuit breaker and wait for the person to confirm if the green LED light has turned on.
Flip OFF the circuit breakers which were previously in the open position and are not connected to the heating system.
If the circuit breaker trips again, it could indicate faulty wiring in the Taco zone valve control module. In that case, disconnect the module and call an electrician to fix the problem.
Check The Power Outlet:
Check that there is power available at the outlet. You could connect a functional electrical appliance to the outlet to determine whether the outlet is working. If the outlet is not working, call an electrician. It can be dangerous to fix a power outlet on your own.
Check The Wiring Inside The Control Module:
Open the control panel and check the wiring inside. Check whether any wiring is sticking out or is damaged. If that is the case, firstly, disconnect the Taco zone valve control from the power outlet.
If any wiring is sticking out, refer to the wiring diagram in the owner’s manual. Put the wire back into its designated slot and screw it in. But if your wires are damaged and you want to fix it yourself you, could follow the steps mentioned here:
What To Do When The Green Light In The Taco Zone Valve Control Is Flashing?
If the green LED light in the Taco zone valve control is flashing, it is likely that you have a problem with your transformer. The LED indicator lights have no blinking feature and should never be flashing.
What To Do When The Yellow Light In The Taco Zone Valve Control Is Not Lighting Up?
If the yellow LED light is not turning on, that means there is no call for heat at that particular heating zone. It can be a common issue for models like Taco SR504. The thermostat will send the signal to the Taco zone control valve if a zone requires heat. Try increasing the heat in the thermostat.
If the yellow indicator light still does not light up and the zone is not getting heat, check the wiring inside the module. If the wiring is okay, there could be a problem with the thermostat. Replace the thermostat to solve the problem.
What To Do When The Red Light In The Taco Zone Valve Control Is Not Lighting Up?
If the red LED indicator light is not lighting up, there may be no heat required in that particular zone.. But if the yellow light is lighting up, that means there is heat needed in that zone.
So if the red light still does not light up it means the taco zone valve is not getting opened. This may indicate a problem with the valve. Follow the instructions in this video to fix this problem:
Frequently Asked Questions (FAQs):
How do I know if my taco zone valve is bad?
You can find out whether your Taco zone valve is bad by using a multimeter. Use the multimeter to measure the voltage between the first and second terminal of the valve. When the valve is closed the voltage difference should be 22.4 V. In the open position the voltage difference between the two should be 24 V. If power is not available you could do a continuity test instead. If the 1st and 2nd terminals have no continuity, then the Taco zone valve is bad.
What does a taco zone sentry do?
The Taco zone sentry valve is used to maintain zone based heating in a hydronic heating system. The Taco sentry zone valve uses proprietary technology from Taco. It uses a logic system to control a gear based electronic actuator. It uses much less power and is more responsive than a typical zone control valve.
How does a zone valve work?
A zone valve works with the help of a thermostat. A thermostat measures the temperature and energizes the zone control valve when the temperature is too far from the set value. The actuator in the control valve opens when energized to provide heat to the zone.
Now you know about Taco zone valve control indicator lights meaning. This is a common question people ask after they install a Taco zone valve control module. The indicator lights can be used to troubleshoot your hydronic heating system. I hope you did not face much difficulty in reading this article. I expect I managed to answer all your questions.
That is it for today. I wish you Goodbye and goodluck!