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Payne Ductless HVAC 45MHHAQ High Wall Indoor Unit

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Payne Ductless and mini-split HVAC Ductless HVAC Repair, maintenance, and replacement planning
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Technical Specifications

Product Specs

  • Brand: Payne
  • Official model: 45MHHAQ
  • Official product name: High Wall Indoor Unit
  • Product category: ductless-systems
  • Turbo Mode
  • Four fan speeds
  • Sleep Mode
  • Follow Me (senses temperature at handheld remote)
  • Heating Setback (46° F Heating Mode)
  • Up-down louver control (fixed or swing)
  • Improved serviceability with easy access to fan and electrical connections
  • Quiet indoor operation
  • Aluminum Hydrophilic pre-coated fins
  • 10-year parts limited and 10-year compressor limited warranties to the original purchasing owner upon timely registration 2
  • Sound levels as low as 18.5 decibels 1
  • Sizes: 0.75-3 ton
  • 115V and 208/230V
  • Attractively styled, high−impact polystyrene
  • Official source: Payne product page
  • Model or series: 45MHHAQ High Wall Indoor Unit
  • Equipment type: Ductless HVAC
  • Product group: Ductless and mini-split HVAC
  • System role: Ductless or mini-split system equipment
  • Application: Residential, light-commercial, or zone-control 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 45MHHAQ Ductless HVAC 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 45MHHAQ High Wall Indoor Unit 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.

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Randy J.

Thanks to Andrey for an amazingly quick response to my request for a service call. He diagnosed and fixed my issue within 24 hours of my asking for help. Excellent service. Thanks.

Sharad W.

Green Flow and the people who work there are terrific. Vlad and Andre are excellent. Andre was very helpful. He was punctual, respectful, efficient and knowledgeable. He did not try to sell me something I didn’t need ( as others have done before). I was charged $99 which...

Dev W.

I had a breakdown of my cooling system and Hanna at Green Flow responded to my request right away. They scheduled me same day. The team at Green Flow was easy to communicate with over phone and text. They kept me updated on delays on arrival of the...

Michele Z.

Andrey was professional, prompt, smart, thorough and exceedingly pleasant. We are likely switching our current HVAC company to Green Flow.

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