How to Switch Between Heating and Cooling on Your Amana Wall Unit

🏠 Introduction: Year-Round Comfort Starts with the Right Settings

One of the key advantages of the Amana 9,200 BTU Through-the-Wall AC with Heat Pump is its ability to provide both cooling in summer and heating in winter β€” all from the same compact, wall-mounted unit.

But if you're like Mark, a homeowner looking for simplicity and efficiency, you might wonder:

"How exactly do I switch modes on my Amana wall unit β€” and how can I be sure it's working the way I want it to?"

This guide explains everything:

  • How the mode switching works

  • What each setting on your remote or control panel means

  • How to avoid common pitfalls

  • Tips for optimal comfort and efficiency


πŸŽ›οΈ 1. Understanding Your Amana Unit’s Control Panel & Remote

Your Amana wall unit comes with either:

  • A touch-sensitive control panel on the front panel

  • A wireless remote control (often with LCD screen)

πŸ”˜ Common Buttons You'll See:

Button Function
Mode Switches between Cool, Heat, Fan, Auto, Dry
Fan Adjusts fan speed (Low, Med, High, Auto)
Temp β–²β–Ό Sets the desired temperature
On/Off Powers the unit
Swing Controls louver direction (if available)

πŸ“Œ The β€œMode” button is what you’ll use to switch between heating and cooling.


🌬️ 2. How to Switch from Cooling to Heating (and Vice Versa)

Here’s a step-by-step guide for Mark and other homeowners using either the remote or control panel:

πŸ“² Using the Remote:

  1. Press β€œOn” to power up the unit

  2. Press the β€œMode” button until β€œHeat” appears on the display

  3. Use the Temp β–²β–Ό to set your desired room temperature

  4. The unit will activate heating mode and reverse refrigerant flow

To switch back to Cooling, repeat the same steps and stop when the display shows β€œCool.”

🧱 Using the Built-In Panel:

  1. Tap the Mode icon to cycle through operating modes

  2. Stop when the HEAT indicator illuminates

  3. Adjust setpoint temperature with β–² or β–Ό

πŸ”„ Remember: Switching modes may take up to 3–5 minutes to fully transition, especially for heat pump reversal.


⚠️ 3. Important Things to Know When Switching Modes

🧊 1. Don’t Rapidly Switch Between Modes

  • Let the system complete its cycle before switching again

  • Rapid toggling can stress the compressor or trigger a safety lockout

πŸ”₯ 2. Heating Mode Requires Outdoor Coil Defrost

  • If you hear a clicking or buzzing during heating, the unit may be defrosting the coil

  • This is normal and temporary

🧯 3. Power Off Before Long-Term Inactivity

  • Leaving the system in Auto mode may cause unneeded cycling during spring/fall

πŸ”— Amana PTAC Owner’s Manual Example


🧠 4. What Each Mode Actually Does

Mode Function Best Use
Cool Cools room to set temperature Summer or hot days
Heat Heats room to set temperature Winter or cold nights
Fan Circulates air only Spring/fall ventilation
Auto System picks heat/cool as needed Transitional seasons
Dry Dehumidifies without major cooling Humid, rainy days

🚫 Mark’s Tip:

β€œDon’t use Dry mode thinking it’ll heat or cool β€” it’s just for removing humidity. Great for stormy weather, though.”


πŸ”Œ 5. What If Your Unit Won’t Switch Modes?

Before calling for service, try these troubleshooting steps:

πŸ”‹ 1. Check the Remote

  • Replace the batteries

  • Reset remote by removing batteries for 60 seconds

⚑ 2. Power Cycle the Unit

  • Unplug for 5 minutes and plug back in

  • This resets internal circuit board

🧰 3. Check the Temperature Setpoint

  • Heat mode won’t engage if the room is already warm

  • Cool mode won’t activate if the set temp is higher than room temp

πŸ› οΈ 4. Check for Obstructions

  • Filters or vents blocked = improper airflow

If nothing helps, contact a certified technician to inspect the reversing valve or thermostat control board.

πŸ”— Amana PTAC Troubleshooting Guide


πŸ’‘ 6. Energy-Saving Tips for Each Mode

❄️ In Cooling Mode:

  • Set thermostat between 74Β°F and 78Β°F

  • Close curtains during daytime sun

  • Clean filter monthly

πŸ”₯ In Heating Mode:

  • Set thermostat between 68Β°F and 70Β°F

  • Keep doors closed to limit heat loss

  • Insulate window frames and outlets

πŸ” Use Auto Mode Wisely

  • Great for moderate climates

  • Avoid using when outside temps swing quickly β€” may cause the system to overreact

πŸ”— Energy.gov – Thermostat Settings Guide


πŸ“¦ 7. Using the Amana 9,200 BTU Unit as Your Primary System

The Amana wall unit can be your main HVAC source in:

  • Bedrooms (150–350 sq ft)

  • Enclosed porches

  • Home offices

  • Studio apartments

Switching between modes properly ensures:

  • Year-round comfort

  • Reduced electric bills

  • Maximum system lifespan


🧠 Mark’s Routine: A Real-World Example

β€œIn spring and fall, I keep it on Auto mode during the day, but manually switch to Heat on cooler nights. In the summer, I use Fan mode on mild days and Cool mode during heat waves. It’s all about adjusting with the weather and watching that humidity.”


πŸ› οΈ Final Checklist: Mastering Heating and Cooling Modes

βœ… Familiarize yourself with remote and control panel
βœ… Press β€œMode” to cycle through Cool β†’ Heat β†’ Fan β†’ Dry
βœ… Set temperature based on season
βœ… Don’t switch rapidly between modes
βœ… Clean your filters monthly
βœ… Adjust louvers to optimize air distribution
βœ… Use Auto mode with caution during transitional weather

In the next topic we will know more about: Maintenance Tips for Your Amana Through-the-Wall AC/Heat Pump Combo

Mark callahan

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