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System 2000 heat going to heating zone when hot water zone is calling for heat

in Oil Heating
Hi all. I have a System2000 model EK-1f. I noticed a while back that when the hot water zone is calling for heat, looking at the control panel light, the hot water and zone 1 heat output lights come on and heat is actually thrown to zone 1 also. The reason I noticed this is I got heat in the zone 1 rooms in the middle of summer. I removed the thrermostat that controls zone 1 to make sure it was not a thermostat issue in zone 1. I have 4 heating zones total. Even worse, after the hot water zone light turns off and the hot water tank is fully satisfied from a temperature standpoint, that zones output light goes off but the zone 1 output light stays on and continues to dump heat into zone one until all the heat is dumped from the boiler. Is this normal that zone one becomes the final dumping point of heat. A picture of the System2000 controller panel is attached.
Thanks ahead for your help

Thanks ahead for your help

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Comments
Joe
Energy Kinetics
So the problem is in the Manager or a control relay behind it.
Energy Kinetics
Energy Kinetics
Here is a link to manager diagnostics:
https://energykinetics.com/digital-manager-heating-professional/
The output light on as you describe (not when actively heating or purging) is often caused from a short in that output. It could be from crossed wires or a failed zone valve. The diagnostic shows how to test by removing the output quick connector.
If you only had 3 heating zones, you could have moved the zone valve and thermostat to an unused zone.
If it turns out that the manager output is damaged, you will be eligible for a core return credit - see replacement manager costs here:
https://energykinetics.com/system2000-parts-trade-list-price/
I would suggest waiting for your heat pro to test the zone valve, wiring, and output.
Best,
Roger
Energy Kinetics, Inc.
Energy Kinetics
As @SuperTech noted, it is most likely Nest issues.
An easy way to check is to disconnect the Nest thermostat(s) and see if the problem goes away after a day or two.
You can also observe intermittent calls on the manager thermostat lights for the Nest zones inputs, and sometimes the zone light outputs. This is due to the thermostat drawing so much power it acts like a thermostat call. For reference, newly installed Nest thermostats may need up to an hour to charge before they have enough base power to operate.
For reference, part way down this page has instructions with several ways to properly wire a Nest thermostat. Years ago, we modified our Energy Manager specifically for Nest power "sharing" (stealing) operation, and then Nest changed the design and we needed to make another change a few years ago. So depending on the age of the manager, it may or may not be compatible without using these wiring instructions.
If you still suspect zone valves bypassing, run a test when the boiler and zones have been off for a while and the entire system is "cold" - make sure all Nest thermostats are un-wired. Run hot water until the hot water thermostat light comes on to re-heat the tank (or turn up a thermostat on a properly functioning zone). During heat up (the boiler will be hot after about 2 minutes), carefully check to see if the pipes a foot or so after the zone valves are hot. Use caution as the pipes could be very hot. Heat will migrate or flow through any zones that are not properly closed. If there is no flow, the pipe will remain unheated downstream of the zone valve; if you are unsure, feel the pipe farther downstream. If there is flow, it could be a manually opened zone valve lever, debris letting water flow past, or an otherwise failed zone valve (although if the motor fails, the zone valve usually fails closed). If there are manual shut off valves on the affected zones and heat is not needed in warmer weather, the valves may be temporarily closed - just make sure to repair and open the zones up before heat is needed.
Best,
Roger
Energy Kinetics, Inc.
Had one at the home of former NHL player Alexi Yashin. I told him we could use the Nest for Shinny in the foyer. Carol laughed.
I disconnected the right hand output using the quick connect and turned on the service switch and still Zone 2 lights up with the circulator.
Is this a bad digital manager?
Energy Kinetics
Zone 2 did light up for a little while, while the other zones were circulating, but then turned off and has stayed off ever since. Almost as if the system manager was stuck in some kind of loop.
Good news is that the system is now working as expected - but I am concerned that the system manager may yet fail again. Will have to just continue to monitor it.
Question - does anyone know if I can purchase the digital system manager directly from EK - or do I need to go through a professional to do this?
Energy Kinetics
My System 2K EK-1F is less than 3 years old, but I'm getting heat to zone 2 when zone 1 (downstairs) is called. So zone 2 (upstairs) is so hot that the thermostat never calls for heat. Is there anything I can do from my end to fix this? If it's a bad zone valve "leaking" heat to another zone, how do I fix this?
Thanks in advance
Could be the manager, could be a failing zone valve or it could just be a short in some low voltage wiring.
It could also be a problem with the thermostat. First simple step you could try would be to power down the system, and replace the batteries in the thermostat.
Energy Kinetics
I'll try rebooting the whole system, in the morning, and if that fails I'll start a new thread like it was mentioned.
Thanks again, you guys are great