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Carrier® Comfort™ 80% AFUE 90000 Btuh Multipoise Gas Furnace service and support

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Carrier Residential Gas Furnace - 58SB Gas Furnace Repair, maintenance, and replacement planning
Carrier® Comfort™ 80% AFUE 90000 Btuh Multipoise Gas Furnace product image

Product service snapshot

Carrier® Comfort™ 80% AFUE 90000 Btuh Multipoise Gas Furnace service details

Carrier® Comfort™ 80% AFUE 90000 Btuh Multipoise Gas Furnace is a Carrier® gas furnace record from the Carrier Enterprise catalog. Catalog model: 58SB0A090E21--20. Product family: 58SB. 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® Comfort™ 80% AFUE 90000 Btuh Multipoise Gas Furnace
  • Equipment type: Gas Furnace
  • Product group: Residential Gas Furnace - 58SB

Technical snapshot

Carrier® Comfort™ 80% AFUE 90000 Btuh Multipoise Gas Furnace technical snapshot

Product Specs

  • Model: 58SB0A090E21--20
  • Manufacturer Number: 58SB0A090E21--20
  • Vendor Number: 58SB0A090E21--20
  • Catalog Brand: Carrier®
  • Product Family: 58SB
  • AFUE: 80
  • AHRI Usage: Indoor AHU
  • Air Flow Direction: Multi-Position
  • BTU Input: 84,000-88,000
  • BTU Output: 68,000-71,000
  • Blower Motor HP: 1
  • Blower Motor RPM: 1,050
  • Blower Motor Speeds: 5
  • Blower Motor Type: ECM (Electronically Commutated Motor)
  • Blower Wheel Diameter: 11"
  • Blower Wheel Width: 11"
  • Brand: Carrier®
  • CFM: 2,000
  • CFM Heating: 1,650
  • Cabinet Width: 21
  • Color: Gray
  • Country Of Origin: USA
  • Cubic Measurement: 11.7465
  • Cycle/Hertz: 50 Hz
  • Energy Star Rated: NO
  • FER Compliant: YES
  • Filter Size: 20" x 25", 16" x 25"
  • Fuel Type: Natural Gas or LP
  • Full Load Amps: 11.5
  • Furnace Type: Gas
  • Gas Connection Size: 1/2"
  • Gas Connection Type: NPT
  • Height: 33.3333
  • Ignition Type: Hot Surface (HSI)
  • Includes Filter Rack: NO
  • Length: 29
  • Maximum Overcurrent Protection (MOCP): 20
  • OPT Code: 1P58SB0A090E21--20
  • Phase: Single
  • Prop 65: YES
  • Stages Heating: 1
  • Tier: Comfort™
  • UPC: See Optical
  • Voltage: 115 VAC
  • Weight: 140
  • Width: 21

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® Comfort™ 80% AFUE 90000 Btuh Multipoise Gas Furnace 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® Comfort™ 80% AFUE 90000 Btuh Multipoise Gas Furnace service questions

Can GreenFlow help with Carrier Carrier® Comfort™ 80% AFUE 90000 Btuh Multipoise Gas Furnace service requests?

Yes. GreenFlow can help collect the right details for Carrier Carrier® Comfort™ 80% AFUE 90000 Btuh Multipoise Gas Furnace service requests, including the model, symptoms, equipment age, building type, access notes, photos, and timing.

What symptoms should I mention for Carrier® Comfort™ 80% AFUE 90000 Btuh Multipoise Gas Furnace?

Helpful symptoms include no heat, ignition trouble, lockout or error codes, short cycling, blower concerns, venting or condensate issues, thermostat behavior, unusual noise, and maintenance history.

Is Carrier® Comfort™ 80% AFUE 90000 Btuh Multipoise Gas Furnace used for residential or commercial properties?

Furnace requests are usually residential or managed-property heating requests. They may also be part of replacement or furnace-to-heat-pump planning conversations.

What helps schedule Carrier® Comfort™ 80% AFUE 90000 Btuh Multipoise Gas Furnace 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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Johnson M.

Andrew is professional and on time on the schedule. I got the same day appointment scheduled, you do not know how hard it is to live in summer Boston without AC working properly. He identified issue very quick and got it fixed like in 10 mins. Gave me...

Rachel R.

Prompt, professional, courteous, and fairly priced

Benjamin B.

Great Service, fast and super friendly!

Nicholas M.

I called Green Flow Solutions in a hurry to diagnose and fix an AC unit in a commercial condo unit. They responded quickly, arrived urgently and performed an excellent job on the repair needed. Communication 10/10, professionalism 10/10 and quality 10/10. I will be recommending Green Flow Solutions...

Alexey Z.

Great service! They were able to perform complex repairs as I requested. Instructed me well on future maintenance. Worked fast. Suggested future improvements. Great team, highly recommend.

Tarikh C.

Max quickly identified the source of the problem with our condensing unit and fixed it. He was very knowledgeable and helpful at explaining what he was observing. He also stuck around to check for other potential issues and gave us advice for future maintenance. He's also very professional...

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