Fan coil

Payne Fan coil 40MUAA Air Handler

Schedule Service Check Availability

Payne Residential HVAC Fan coil Repair, maintenance, and replacement planning

Technical Specifications

Product Specs

Brand: Payne
Official model: 40MUAA
Official product name: Air Handler
Product category: fan-coils
Fan Speed = Variable-Speed Fan
Timely registration required for 10-year parts limited warranty. Limited warranty period is 5 years if not registered within 90 days of installation. Jurisdictions where warranty benefits cannot be conditioned on registration will receive the registered limited warranty periods. Please see warranty certificate for further details and restrictions.
Modes: Cool, Heat, Dry, Fan, Auto
4-way installation (Up flow, Down flow, Right, Left)
All aluminum coil for corrosion-resistance
Automatic Airflow Technology with static pressure up to 0.8 in WG
Less than 2% air leakage
Easy maintenance
Quiet indoor operation
Wireless remote control included
24V interface for third party thermostat compatibility built-in
10-Year Parts Limited Warranty 1
Sound: as low as 29.5 decibels 2
1.5 – 5 Ton
208/230V
Official source: Payne product page
Model or series: 40MUAA Air Handler
Equipment type: Fan coil
Product group: Residential HVAC
System role: Indoor evaporator coil for a matched split HVAC system
Application: Residential, light-commercial, or managed-property comfort applications
Compatibility check: Match with compatible outdoor equipment, controls, airflow, voltage, and capacity before service or replacement.
Verified source: payne.com

Useful troubleshooting details

Confirm the exact 40MUAA Fan coil model number, serial number, capacity, voltage, refrigerant or fuel type, controls, and matched equipment.
Share current symptoms, alerts or error codes, recent maintenance, access notes, and whether the issue is urgent or planned.
For replacement planning, note comfort goals, existing equipment age, and any heat-pump, electrification, or rebate-related questions.

Service planning

How GreenFlow handles 40MUAA Air Handler requests

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.

Describe the service issue

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

Review access and history

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

Plan the next step

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

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Our Happy Customers

Anna G.

They quickly identified the issue with the heating system and fixed it efficiently. He explained everything clearly and made sure I understood what was going on. Very professional and reliable, extremely satisfied with the service.

Ray

Just had a service call because my tankless water heater stopped working with E110 code. Andrey located the root cause real quick and fixed the issue within half an hour, also gave reasonable recommendations for further maintenance.

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

Neal V.

In an industry that often fraught with contractors taking advantage of homeowners, Andrey was honest with his assessment and willing to install a product acquired elsewhere (most want that margin themselves), patiently answered my questions (I’m an engineer so like to understand what’s happening), and proactively offered practical...

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