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Argo AR Zone light on with no call from Thermostat
Holder
Member Posts: 15
Hello! Over the past few weeks, my radiant heating system has been acting up. Despite turning off the thermostat, my basement has sometimes become unbearably hot. Upon inspecting my Argo Controller, I noticed that the zone light sometimes remains illuminated even when the thermostat is off. Now, I’m wondering if this issue could be related to the Argo controller or relay, or if there might be a short in the wiring. Any insights would be greatly appreciated! 🔥 Thanks!
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Comments
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Try switching the cube relay in the Argo with one from another zone.
If that doesn't work, disconnect one wire from TT from that zone.
Those the easiest to check if you don't have an electrical meter.
Are there actuators involved?
What make and model thermostat? Floor sensor?
Can you post pics of the radiant piping?
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Actuators all remain off but pump is working therefore only the one room with the actuator removed from the pipe is getting hot. (I removed the actuator from the pipe for that one room since I thought that letting the pump run with all actuators closed might damage the pump). My main question is if a control board issue can be causing the light to be on even though there is no call from the thermostat? Thnaks0
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If the actuator is off the valve body, then the valve is open.0
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The AR zone light will indicate that there is a call for heat. To determine if it is the control, remove one of the thermostat wires connected to the AR control, from the zone that is calling for heat. When you remove that wire, if the light goes out, then the wire that is connected to the AR zone is closing the circuit. You need to determine where that is happening. If the light stays on when you remove that wire, then the control is defective. replace the control.
EDIT: Diagram showing 4 possibilities and how that removing a thermostat wire from the AR control can diagnose if control is defective as shown on Zone 4 thermostat.
Is the green light the one that you are talking about? or is it one of the other lights that is staying on?
Or did I pick the wrong Argo Control?
Edward Young Retired
After you make that expensive repair and you still have the same problem, What will you check next?
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Yes thats the green light that is staying operiodically, I will do this check next time this happens. Thanks0
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Could an actuator be calling for heat while remining closed?0
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Holder said:Could an actuator be calling for heat while remining closed?
Are these 2 or 4 wire actuators?
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