A/C being tempermental - General HVAC Discussion - HVACSite

A/C being tempermental

 
Thread Tools Display Modes
Old 06-13-2018, 08:18 AM   #1
Junior Member
 
jbarrett's Avatar
 
Trade: Facility Manager
Join Date: Jun 2018
Location: Nashua NH
Posts: 1
Default

A/C being tempermental


I am a new facility manager for a company and I am walking into a relativity new system that has been giving them problems since they finished construction. The other day we lost AC to one zone. I went to the roof to check on the unit and it was blowing off excessive heat compared to the other units. I shut the unit down for the night and went back in the morning. I checked the dampening control box and all 4 zones are coming up with red lights, HoneyWell HZ432, Cool 1 & 2 are green as well as the fan. If I select the purge option all go back to green until I hit confirm then they go back to red.

I restarted the unit and the air conditioning returned to the zone but all lights are still red. The system on the roof calmed down and is not blowing off excessive heat. I believe this is just a band aid to the issue so what I am trying to do is reach out and see if I can narrow down the issue so that if I have to call someone I can tell them exactly whats wrong. Please let me know if anyone can help I can provide more information if needed.

Side not: Thermostat says no signal above temperature.

jbarrett is offline  
Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. HVACSite.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!

Old 08-22-2018, 12:20 PM   #2
Faith Heating & Cooling
 
faithheatingcooling's Avatar
 
Trade: HVAC/R
Join Date: Aug 2018
Location: Chicago, IL
Posts: 22
Default

Re: A/C being tempermental


Quote:
Originally Posted by jbarrett View Post
I am a new facility manager for a company and I am walking into a relativity new system that has been giving them problems since they finished construction. The other day we lost AC to one zone. I went to the roof to check on the unit and it was blowing off excessive heat compared to the other units. I shut the unit down for the night and went back in the morning. I checked the dampening control box and all 4 zones are coming up with red lights, HoneyWell HZ432, Cool 1 & 2 are green as well as the fan. If I select the purge option all go back to green until I hit confirm then they go back to red.

I restarted the unit and the air conditioning returned to the zone but all lights are still red. The system on the roof calmed down and is not blowing off excessive heat. I believe this is just a band aid to the issue so what I am trying to do is reach out and see if I can narrow down the issue so that if I have to call someone I can tell them exactly whats wrong. Please let me know if anyone can help I can provide more information if needed.

Side not: Thermostat says no signal above temperature.
Could be a control board problem. I had a similar issue with a RTU unit earlier this summer and it ended up being that. Lemme know if you did find out what the issue was please.
__________________
Steve - Faith Heating & Cooling Chicago
faithheatingcooling is offline  


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Join Now... It's Fast and FREE!

I am a professional contractor
I am a DIY Homeowner
Drywall Talk is for
PROFESSIONAL CONTRACTORS ONLY!

At DrywallTalk.com we cater exlusivly to professional contractors who make their living as a contractor. Knowing that many homeowners and DIYers are looking for a community to call home, we've created www.DIYChatroom.com DIY Chatroom is full of helpful advices and perfect for DIY homeowners.

Redirecing in 10 seconds
No Thanks
terms of service

Already Have an Account?

 

SEO by vBSEO 3.6.1