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Carrier® - 4.3” Carrier Connect FX Wi-Fi Thermostat service and support

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Carrier Residential Thermostat / Control Thermostat / Control Repair, maintenance, and replacement planning
Carrier® - 4.3” Carrier Connect FX Wi-Fi Thermostat product image

Product service snapshot

Carrier® - 4.3” Carrier Connect FX Wi-Fi Thermostat service details

Carrier® - 4.3” Carrier Connect FX Wi-Fi Thermostat is a Carrier® thermostat / control record from the Carrier Enterprise catalog. Catalog model: 33CONNECTSTAT43FX. Green Flow Solution uses this page for residential model identification, service planning, maintenance conversations, repair diagnostics, and replacement matching.

  • Brand: Carrier
  • Model or series: Carrier® - 4.3” Carrier Connect FX Wi-Fi Thermostat
  • Equipment type: Thermostat / Control
  • Product group: Residential Thermostat / Control

Technical snapshot

Carrier® - 4.3” Carrier Connect FX Wi-Fi Thermostat technical snapshot

Product Specs

  • Model: 33CONNECTSTAT43FX
  • Manufacturer Number: 33CONNECTSTAT43FX
  • Vendor Number: 33CONNECTSTAT43FX
  • Catalog Brand: Carrier®
  • 750mV Compatible: NO
  • Accuracy: ±0.20°C from +15.6°C to +32.2°C (approximately 0.5°F accuracy from 60°F to 90°F).
  • Ambient Temperature Range: 45°F to 92°F (7.22°C to 33.33°C)
  • Auto Changeover: NO
  • Backlit: YES
  • Batteries Included: NO
  • Battery Backup: YES
  • Brand: Carrier®
  • Built In Wi-Fi: YES
  • Change/Check Reminders: YES
  • Color: Black
  • Country Of Origin: USA
  • Cubic Measurement: 0.009
  • Daylight Savings Time Ready: YES
  • Digital: YES
  • Digital-Non Programmable: NO
  • Digital-Programmable: YES
  • Display: YES
  • Display Options: LCD
  • Display Size: 4.3
  • Displays Outdoor Temperature: YES
  • Dual Transformer Compatible: NO
  • Electrical Connection Type: Terminals
  • Electrical Rating: 1.25 Amp @ 24 Vac
  • Fan Switching: YES
  • Heat Pump Compatible: YES
  • Height: 3.228
  • Humidification: YES
  • Indoor Remote Sensor: YES
  • Language: English
  • Length: 0.94
  • Low Battery Indicator: NO
  • Manual: YES
  • Mounting Type: Wall-Mounted
  • OPT Code: 1P33CONNECTSTAT43FX
  • Operating Temperature Range: 32 to 104 Farenheit
  • Power Method: Battery; Hardwired
  • Programmable Fan: YES
  • Prop 65: YES
  • Removable Interface: YES
  • Stages Cooling: 3
  • Stages Heating: 4
  • System Switching: YES
  • Temperature Range: 32°F to 104°F (0°C to 40°C)
  • Temperature Settings Per Day: 24
  • Terminal Designations: P104 and P105
  • Touchscreen: YES
  • UPC: See Optical
  • Vacation Mode: YES
  • Voltage: 18/30 VAC
  • Weight: 0.75
  • Width: 5.125
  • Works With Google Assistant: YES
  • Works With Rheem EcoNet: NO

Useful troubleshooting details

  • Confirm the exact model number, serial number, installed equipment type, and site voltage before service or replacement planning.
  • Match replacement equipment and accessories against current Carrier compatibility requirements, refrigerant type, capacity, airflow, and local code requirements.

Service planning

How GreenFlow handles Carrier® - 4.3” Carrier Connect FX Wi-Fi Thermostat requests

1

Identify the equipment

Confirm the model or series name, serial number if available, photos, and whether the unit is roof, exterior, basement, or mechanical-room equipment.

2

Describe the service issue

Share no heat, no cooling, weak airflow, error codes, alarms, leaks, noise, control problems, or comfort complaints.

3

Review access and history

Include access notes, tenant or business-hour constraints, filter status, recent repairs, and maintenance records when available.

4

Plan the next step

GreenFlow can route the request for diagnostics, repair planning, maintenance, replacement scope, or related system upgrades.

Carrier® - 4.3” Carrier Connect FX Wi-Fi Thermostat service questions

Can GreenFlow help with Carrier Carrier® - 4.3” Carrier Connect FX Wi-Fi Thermostat service requests?

Yes. GreenFlow can help collect the right details for Carrier Carrier® - 4.3” Carrier Connect FX Wi-Fi Thermostat service requests, including the model, symptoms, equipment age, building type, access notes, photos, and timing.

What symptoms should I mention for Carrier® - 4.3” Carrier Connect FX Wi-Fi Thermostat?

Helpful symptoms include no heat, no cooling, weak airflow, error codes, leaks, short cycling, unusual noise, thermostat behavior, and whether the issue is urgent or planned maintenance.

Is Carrier® - 4.3” Carrier Connect FX Wi-Fi Thermostat used for residential or commercial properties?

Thermostat / Control requests may come from homes, condos, multi-unit properties, offices, managed buildings, and light-commercial spaces depending on the equipment type and application.

What helps schedule Carrier® - 4.3” Carrier Connect FX Wi-Fi Thermostat service faster?

Share the exact model and serial number if available, clear photos of the equipment and surrounding access area, current symptoms, recent maintenance history, and whether the request is repair, maintenance, or replacement planning.

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Our Happy Customers

David Z.

Right on time. Excellent service. Fixed the heating system and reasonably priced.

George Z.

Exceptional service from start to finish! The team was professional, efficient, and restored our heating system quickly—highly recommend for any HVAC needs.

Tim S.

Very thorough and professional. Seems to have got our heater working again. Thanks!

Enrique B.

Tankless water heater failed . I contacted Green Flow and Aundrey was dispatched. He arrived on time diagnose the issue and called the manufacturer eventually they agreed to replace the unit. Within a few days a new unit was installed and hot water was restored. Service was fast...

Michael C.

always available, easy to get a hold of, as a property manager I get lots no heat emergency, usually get to it same day or next day

Mohammad P.

Hana is very very nice to deal with

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