HVAC

Have HVAC Questions? Ask an HVAC Expert for Answers

Ask an Expert,
Get an Answer ASAP!

HVAC

Rick. 1 day. I have a taco sr506 switching board, all my…

Customer Question
1 day. I have...

1 day. I have a taco sr506 switching board, all my thermostats ar on, but there is no red lights on the board

Contractor's Assistant: Just to clarify, do you think this is a larger HVAC problem, or something specific to the thermostat?

Can't be thermostat, 5 thermostas are there. can't brake at the same time

Contractor's Assistant: Do you plan on doing the work yourself?

Yes

Contractor's Assistant: Anything else we should know to help you best?

Not sure

Submitted: 1 month ago.Category: HVAC
Show More
Show Less
Ask Your Own HVAC Question
Answered in 11 hours by:
1/8/2018
HVAC Technician: Rick, HVAC Supervisor replied 1 month ago
Rick
Rick, HVAC Supervisor
Category: HVAC
Satisfied Customers: 23,316
Experience: 40+ yrs. experience as a licensed oil & gas technician.
Verified

Welcome to Just Answer, my name is ***** ***** I will do my best to help you with your issue. If my initial response doesn’t answer your question then let me know and we can continue our conversation.

Is the power light on? Try jumping the thermostat terminals (TT or R & W) on 1 zone.Does the LED for that zone come on.

Ask Your Own HVAC Question
Ask Phil Your Own Question
Phil
Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6,938
6,938 Satisfied Customers
Experience: Retired HVAC/ Electrical & Boiler contractor. Industrial

Phil is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future.

JimmyBagley, IA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

Phil

Phil

Mechanical Engineer

6,938 satisfied customers

Retired HVAC/ Electrical & Boiler contractor. Industrial

Rick Mather

Rick Mather

HVAC Technician

3,133 satisfied customers

35 years experience, HVAC

Matthew

Matthew

HVAC Technician

2,014 satisfied customers

14 years experience in the HVAC field of service, installation, Manual J & D calculations

Kenton Guidry

Kenton Guidry

HVAC Technician

963 satisfied customers

12 years install/service experience.

Brian HVAC Guy

Brian HVAC Guy

HVAC Technician

953 satisfied customers

I have been an HVAC/R mechanic/technician for 30+ years.

Rick Ridley

Rick Ridley

UK Heating Engineer

871 satisfied customers

Retired But have had 30 years on the tools, Ex CORGI

Tom

Tom

HVAC Technician

770 satisfied customers

16+yrs HVAC/R service. Residential Commerical Industrial

< Previous | Next >

Related HVAC Questions
I have a Trane XL80 furnace from 92. I started having no
I have a Trane XL80 furnace from 92. I started having no heating issues yesterday morning and I'm having an issue troubleshooting as the symptoms seem to keep changing. First I was getting a normal bl… read more
Rick
Rick
HVAC Supervisor
23,316 satisfied customers
I am having HVAC issues and am trying to rule out problems.
I am having HVAC issues and am trying to rule out problems. I have two zones. One zone works just fine. The other one doesn't. The first thing I want to know is whether the following is correct:Each H… read more
Rick
Rick
HVAC Supervisor
23,316 satisfied customers
I got an older (1985) Rheem furnace and it doesn't want to
I got an older (1985) Rheem furnace and it doesn't want to start up … read more
Rick
Rick
HVAC Supervisor
23,316 satisfied customers
How much for an answer. First time. I has knowledge of how
yes I has knowledge of how it works. this is the first one that has given me problems on all the furnaces I have worked on … read more
Rick
Rick
HVAC Supervisor
23,316 satisfied customers
I am installing zone valves and can find no wiring diagram
I am installing zone valves and can find no wiring diagram for my very old Aquastat relay type L8048a … read more
Rick
Rick
HVAC Supervisor
23,316 satisfied customers
I have a 1982 Lennox furnace. For some reason, the burners
Hello - I have a 1982 Lennox furnace. For some reason, the burners only goes on when the temp is around 68 degrees even though my thermostat that is set for 74 degrees displays " Heat on". Any ideas o… read more
Rick
Rick
HVAC Supervisor
23,316 satisfied customers
I have a 1994 Reznor F50-E. It wont start. Tested the Tstat
I have a 1994 Reznor F50-E. It wont start. Tested the Tstat and I believe it's ok. I don't believe I'm getting power at the ignition control. Though I can't tell if the reset button has been tripped. … read more
Rick
Rick
HVAC Supervisor
23,316 satisfied customers
Rick. 1 day. I have a taco sr506 switching board, all my
1 day. I have a taco sr506 switching board, all my thermostats ar on, but there is no red lights on the board … read more
Rick
Rick
HVAC Supervisor
23,316 satisfied customers
I have an AO boiler with a triple aquastat,I have a three
I have an AO smith boiler with a triple aquastat,I have a three zone system and need know the correct way to connect the end switch to the system thx GA … read more
Rick
Rick
HVAC Supervisor
23,316 satisfied customers
Is the york diamond 80 compatible with a Honeywell Lyric T5
Is the york diamond 80 compatible with a Honeywell Lyric T5 wi fi thermostat? … read more
HVAC Guru
HVAC Guru
Service Technician
Associate Degree
682 satisfied customers
Trying to rewire a thermostat rth6350. What happened is a
what happened is a friend of mine disconnected the wires and doesn't remember where the wires go … read more
Rick
Rick
HVAC Supervisor
23,316 satisfied customers
I have a question about my furnace. New filters recently. I
I replaced themotherboard about 3 weeks ago and disconnected the humidifier… read more
Phil
Phil
Mechanical Engineer
6,938 satisfied customers
I came home from a 3 day trip to find that my heat is not
I came home from a 3 day trip to find that my heat is not working. I believe the problem to be the thermostat partly because it is at least 12 years old. It is a HUNTER 44100 programmable heat/cool th… read more
Rick
Rick
HVAC Supervisor
23,316 satisfied customers
Have a 1f58-58 bought a1f58-72 do they wire the same? Now
have a 1f58-58 bought a1f58-72 do they wire the same? … read more
Rick
Rick
HVAC Supervisor
23,316 satisfied customers
Rick, The thermostat terminals on the ZVC404 Zone Valve
Hi Rick,The thermostat terminals on the ZVC404 Zone Valve Control are marked as 24 VAC. Does this mean that when the terminals on the thermostat are closed, the circuit is completed and energized with… read more
Rick
Rick
HVAC Supervisor
23,316 satisfied customers
I have an TACO SR502 that controls 2 pumps one for zone1 for
Hello, I have an TACO SR502 that controls 2 pumps one for zone1 for Hot water loop and the other for zone2 for baseboard heat and I also have a new TACO ZVC406 that control one other pump that supply … read more
Rick
Rick
HVAC Supervisor
23,316 satisfied customers
My Taco SR 504 switching relay is powered up ( light is on),
My Taco SR 504 switching relay is powered up (green light is on), but none of the zones are working (red lights off). The thermostats upstairs are all brand new and working, and the digital valves see… read more
Rick
Rick
HVAC Supervisor
23,316 satisfied customers
I had a taco sr504 that one zone was not working. I switched
I had a taco sr504 that one zone was not working. I switched thermostats from other zones , jumped out that zone, switched contactor relays etc. I called taco and they said it was probably a bad board… read more
Rick
Rick
HVAC Supervisor
23,316 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x