Mike Here, Again!
If you own a Goodman GPCH33631 package unit, you already know how reliable and efficient it can be. But like any HVAC system, there may come a time when something doesn’t seem quite right. While major repairs should always be left to licensed professionals, there are a number of basic troubleshooting steps you can take before making that service call.
This guide will walk you through common issues, possible causes, and safe homeowner checks—plus when it’s best to put the tools down and call in the pros.
1. Start with the Basics
Before assuming something is seriously wrong, rule out the most common and simplest problems:
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Check the thermostat settings – Make sure your thermostat is set to “Cool” in summer or “Heat” in winter and that the temperature setting is correct.
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Inspect the power source – Verify that the breaker for your GPCH33631 hasn’t tripped and that the disconnect switch outside is in the “ON” position.
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Replace or clean the air filter – A clogged filter can cause poor airflow, system strain, and even shutdowns.
For more on safe, basic troubleshooting steps, check out the Energy.gov HVAC troubleshooting guide.
2. Common Cooling Issues
When your GPCH33631 isn’t cooling properly, the cause might be as simple as a dirty coil—or as serious as a refrigerant leak.
Possible Causes:
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Dirty or blocked condenser coils
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Low R-32 refrigerant level
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Faulty capacitor or fan motor
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Thermostat calibration issues
Homeowner Checks:
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Gently rinse debris off the outdoor condenser coils with a garden hose (never use high-pressure washers).
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Ensure nothing is blocking airflow around the unit—keep shrubs and debris at least two feet away.
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Verify the indoor blower is running.
For in-depth maintenance tips, see ASHRAE’s HVAC system care recommendations.
3. Common Heating Issues
Since the GPCH33631 is a heat pump package unit, heating problems often involve the reversing valve or the defrost cycle.
Possible Causes:
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Faulty reversing valve
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Malfunctioning defrost control board
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Electrical connection issues
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Dirty evaporator coil
Homeowner Checks:
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Confirm thermostat is set to “Heat” and at the desired temperature.
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Check that outdoor coils aren’t iced over—light frost is normal, but thick ice could mean trouble.
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Make sure the air filter is clean to maintain airflow.
For more insight into heat pump heating problems, review the U.S. Department of Energy’s heat pump troubleshooting tips.
4. Airflow and Noise Problems
If you hear odd noises or notice weak airflow, there could be a fan motor issue, duct blockage, or even loose components.
Possible Causes:
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Blower wheel or fan blade damage
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Loose panel screws or mounts
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Blocked or leaking ductwork
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Motor bearing wear
Homeowner Checks:
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Inspect ductwork for visible gaps or disconnections.
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Listen for rattles or vibrations—these can sometimes be fixed by tightening access panel screws.
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Replace filters to ensure proper airflow.
For professional guidance on airflow diagnostics, check HVAC.com’s airflow troubleshooting guide.
5. Refrigerant & R-32 Considerations
Your GPCH33631 uses R-32 refrigerant, which is more environmentally friendly than older options but still requires special handling. If you suspect a refrigerant leak—indicated by poor cooling, hissing sounds, or ice on the coil—do not attempt to fix it yourself.
Only certified technicians can legally handle refrigerants. Learn more about EPA refrigerant safety regulations to understand why DIY refrigerant work is both unsafe and prohibited.
6. When to Call a Professional
While some small issues can be addressed with DIY troubleshooting, you should call a licensed HVAC professional immediately if you notice:
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Burning smells or electrical sparks
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Frequent breaker trips
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Refrigerant leaks
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Persistent or worsening performance problems
Final Thoughts
Troubleshooting your Goodman GPCH33631 doesn’t have to be overwhelming. Start with the basics—check power, thermostat settings, and filters—then look for common airflow or coil issues. But remember, anything involving refrigerants, wiring, or major components should always be left to the pros.
With a little preventative care and prompt attention to problems, you can keep your GPCH33631 running efficiently for years to come.
If you’re ready for professional service or want to learn more about Goodman’s GPCH33631 package units, visit The Furnace Outlet’s official product page.
Need seasonal maintenance tips for this unit? Visit: Year-Round Care for Your GPCH33631.
Until next time,
- Mike, your cool HVAC neighbor
