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My system light is blinking orange on my honeywell mini zone can you tell me what that means?

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My Honeywell EMM-3 zone controller system LED is flashing orange, indicating DAT fault. However I do not have any sensors hooked up.

Check to make sure your compressor is running fir the zone in question. DAT is a discharge air temperature reading that the unit uses to monitor itself. If you're sure you never had one, check the parameters and programming of your unit to make sure something didn't glitch and enable your DAT sensor

Aug 16, 2016 | Honeywell Heating & Cooling

1 Answer

My Honeywell HZ311 3 zone system (Cool & Heat) system all lights are flashing. Please advise how do i reset (restart) the stem. Thank you!

Honeywell TrueZONE HZ311, HZ322, HZ432 Manual > ... > Other > HZ311, HZ322, HZ432
View and Download Honeywell TrueZONE HZ311, HZ322, HZ432 manual online. ...Page 3. Zoning System Design Manual IntroductIon Fig. 2 depicts a typical residential layout with three zones. ... Zoning System Design Manual Plan the Zones In planning azone system, here's what you need: Panel ... Restore password.

Sep 29, 2015 | Cars & Trucks

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I have a Honeywell HZ311 an a red indicator light is on for zone 3, what does that mean if zones 1 & 2 are green ??

red lite for zone 3 means zone three is calling for heat green lite for 1&2 mean zones are satisfied

Jun 12, 2014 | Honeywell Truezone HZ311K Zone Control...

1 Answer

What does code blinking five times mean

need to read inside diagram, will tell u what lights mean.

Jul 10, 2013 | Goodman Manufacturing MSG12CRN1N -...

1 Answer

Loud rattling sound coming from the "fan" main

Sounds like you have a problem with the indoor blower inside that cab. hope this helps.

Aug 13, 2011 | Honeywell ER150B Air Conditioner

1 Answer

On my dell inspiron mini there is an orange blinking light while its on the charger & it wont go away even if my laptop is charged. if you have an answer to help with this problem i would appericate...


The orange flashing LED light means that the laptop battery is not charging to 100%. This could mean that the battery is getting ready to fail or is in the process of degrading.
You could be looking at replacing the battery in near future.


Apr 27, 2011 | Dell Inspiron Mini 10 Notebook

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I have a honeywell emm-3 electronic mini zone for a few days the LED light was blinking orange indicating sensor failure. However, there is no sensor but it sounds like the damper motor was struggling....

check the board for 24 v.a.c. or whatever voltage is used to supply this board,normally its 24v.a.c. from a small transformer,if this transformer burns open the thermostat will not operate

Apr 18, 2010 | Heating & Cooling

1 Answer

Just bought a home with a Honewell trol atemp universal mini zone

because it dosent have a duct sensor - should not be a problem

Sep 03, 2009 | Honeywell Electronic Programmable...

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