When the same HVAC part keeps failing, the part itself may not be the real problem.
That was the concern raised in a Reddit thread about a 2013 Rheem system after its owner reported three blower-motor failures in nine months, prompting commenters to look beyond the motor itself.
Here's what to know
The homeowner said the original ECM blower motor failed first, a remanufactured replacement ran for about nine months, and the warranty replacement died roughly two weeks later.
"I've now had my 3rd blower motor fail in 9 months," the original poster wrote.
Many of the replies focused less on bad luck and more on conditions that could be stressing the motor.
"Power issues (spikes/brownouts) are one, high static pressure on the system," an approved technician commented.
Another Reddit user added: "ECM motors don't like high static pressure."
Some commenters connected that high-static concern to clogged coils or ductwork that restricts airflow. If the system resists airflow, the motor may be forced to work harder than it should.
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That kind of hidden strain can mean more than inconvenient repairs. It can drive up energy use, shorten equipment life, and leave a home less comfortable — even as utility bills rise.
Upgrading heating and cooling equipment can be one of the best ways to save money and protect against rising energy prices. Homeowners exploring replacements can use Palmetto's Comfort Plan network to find efficient heating and cooling solutions and vetted installers, including new HVACs and heat pumps.
More background
Several commenters described ECM motors as especially dependent on surrounding conditions, with restricted airflow and electrical issues topping the list of concerns. When static pressure is high, the motor may keep pushing to reach its target performance.
Two replies specifically pointed to a dirty coil as a likely culprit after so many years of normal operation.
One commenter suggested exactly that: "Since, it somehow was able to pull 13 years on original ECM, likely your coil got dirty and reduced its air circulation capacity."
Another commenter agreed, writing: "This is one of the obvious first checks. [Your] duct design didn't suddenly go bad, your coils got dirty and burnt up the first motor and so on."
That is why simply swapping in another motor may not solve the issue if airflow, coil condition, and static pressure are left unchecked. Commenters also raised questions about rebuilt replacements, noting uneven results with remanufactured motors.
A well-designed, efficient HVAC system can cut monthly bills while improving comfort. For households dealing with aging equipment, recurring repair costs may signal that it's time to compare options rather than keep paying for stopgap fixes.
What can be done?
Before installing another motor, the safer move is to have the system tested. For repeat blower failures, that could include checking duct static pressure, inspecting the evaporator coil and blower motor, and ruling out power problems.
If the system is older or inefficient, Palmetto can also help homeowners weigh replacement options. Through its Comfort Plan, homeowners can access efficient HVAC systems and heat pumps, and if you're not ready to spend upfront, the plan includes $0-down options that can lower heating and cooling costs by up to 50%. The Palmetto Comfort Plan also includes 12 years of free maintenance.
Homeowners can go even further by pairing solar panels with electric appliances such as efficient HVACs, helping reduce utility costs even more. EnergySage makes it easy to compare the best solar system and installer for your home and budget, with potential savings of up to $10,000 on installations.
Where can I learn more?
Recurring HVAC breakdowns often signal a bigger system issue. These articles cover cooling problems that wouldn't go away, repeat component failures, disputed diagnoses, service damage, and questionable add-on fixes.
• In Texas, a new-build home saw the compressor, blower, and TXV replaced and still would not cool.
• In North Carolina, an air-conditioning system suffered capacitor failure twice, raising doubts about the real cause.
• One homeowner's heat pump kept blowing hot air as technicians debated wiring problems.
• A routine tune-up turned into a refrigerant blowout after a technician punctured the coil.
• In Florida, HVAC pros gave a hard pass to a viral AC saver.
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