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The Honeywell Vision Pro IAQ thermostat is blank. Only 5
The Honeywell Vision Pro IAQ thermostat is blank. Only 5 blank boxes at the bottom of the screen … read more
gotoman for ac
gotoman for ac
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I have a visionpro IAQ that went bad. They sold me a
I have a visionpro IAQ that went bad. They sold me a visionpro 8000 (TH8320R1003) as the new replacement. My IAQ only has 3 wires. Data, R, and C. Do you know what to put these 3 wires on in the new 8… read more
airheatman
airheatman
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My thermostat is flashing but cannot change programs or perform
My thermostat is flashing but cannot change programs or perform any touch function other than the current Hold at 74 cool and heat at 61. We changed the batteries and no response. It is a Honeywell Ch… read more
Phil
Phil
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Degree, Mech Engr Technology
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I have a RUUD UPPL-060JAZ heatpump thats a little over 5 years
I have a RUUD UPPL-060JAZ heatpump that's a little over 5 years old. Suddenly it quit heating and the thermostat (Vision Pro IAQ) indicated "wait" but the unit never did come on. Called the company th… read more
Phil
Phil
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Install NEST Thermostat to replace Honeywell 7-Day Program
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Scott
Scott
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I have a Lennox Healthy Climate HRV Ventilation - Single-Core
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Tim H.
Tim H.
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I have a Honeywell RTH7600 thermostat used with a Carrier gas-fired
I have a Honeywell RTH7600 thermostat used with a Carrier gas-fired warm air furnace with AC. My question concerns backlight on this thermostat. With batteries installed, backlighting occurs only for … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
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5,362 satisfied customers
Hi. I was wondering if someone would care to guide me through
Hi. I was wondering if someone would care to guide me through the necessary low voltage wiring of a 'Honeywell Vision Pro IAQ Equipment interface module Model TH5421C" to a "Bryant Plus 90 Model 350MA… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,362 satisfied customers
I have a Honeywell Vision Pro TH8000 Series Model # TH8320U1008.
I have a Honeywell Vision Pro TH8000 Series Model # XXXXX It is in dormant stage and does not respond to any touch screen commands. it appears to be working as the Day, Inside Temp and Time are functi… read more
gotoman for ac
gotoman for ac
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Associate Degree
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I have an older Carrier unit on the roof for heat and A.C.
I have an older Carrier unit on the roof for heat and A.C. I am replacing the old Day&Nite thermostat with a Vision pro 8000. How do I determine if I have a one transformer or a two transformer system… read more
Douglas
Douglas
Vocational, Technical or Trade Scho
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My thermostat vision pro IAQ lost its hold and sched funti&
My thermostat vision pro IAQ lost it's hold and sched funtion...both bottom left sqares are blank and the other sqares are OK. I am not able to program it . any ideals ?… read more
Rick Mather
Rick Mather
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Vocational, Technical or Trade Scho
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I wired a Honewell Vision Pro 8000 (model TH8110U103) thermostat
I wired a Honewell Vision Pro 8000 (model TH8110U103) thermostat to run a gas fired boiler. R is connected to 24V ac; C is connected to 24Vac return; W (O/B) is connected to the zone relay (I think). … read more
Tim H.
Tim H.
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My Honeywell UtilityPRO programmable thermostat is not showing
My Honeywell UtilityPRO programmable thermostat is not showing a display. What could be wrong… read more
Richard
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Hello. I have a vision pro IAQ. Everything worked fine until
Hello. I have a vision pro IAQ. Everything worked fine until yesterday. The touch screen will not respond to being touched. All icons on screen are "lit". The system is in a/c mode and is following th… read more
Matthew
Matthew
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I have a Honeywell PC8900 thermostat that no longer works and
I have a Honeywell PC8900 thermostat that no longer works and is discontinued with no cross reference on the Honeywell website. I bought a Honeywell RTH6400 thermostat as a replacement. The PC8900 wir… read more
DuWayne
DuWayne
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Im installing a Honeywell TrueDry DH150 with a VisionPRO IAQ. The
I'm installing a Honeywell TrueDry DH150 with a VisionPRO IAQ. The installation book shows the wiring termanls on the DH150 as DHUM-R-FAN-C The unit is labled DHUM-COM-FAN-EXT Does the C= COM,R=EXT Th… read more
Matthew
Matthew
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Hi, I recently installed a Honeywell True Steam, w/ a VisionPro
Hi, I recently installed a Honeywell True Steam, w/ a VisionPro IAQ and 10' remote mounting kit for a customer. The home is a modular, w/manufactured home type ducting, an Intertherm 20 KW electric ai… read more
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Dan Linger
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I have a 1F95-1271 White Rogers thermostat. It has stopped
I have a 1F95-1271 White Rogers thermostat. It has stopped displaying - it is blank. I read the trouble shooting instructions and removed the baterries for 2 minutes, inserted new batteries and got a … read more
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Meet the Experts:

Phil

Phil

Mechanical Engineer

7,634 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

Brian HVAC Guy

Brian HVAC Guy

HVAC Technician

1,024 satisfied customers

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

Kenton Guidry

Kenton Guidry

HVAC Technician

963 satisfied customers

12 years install/service experience.

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

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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.

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