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AC Capacitor Failure: Signs, Diagnosis, and Replacement Cost
AC Capacitor Failure: Signs, Diagnosis, and Replacement Cost A failed capacitor is one of the most common reasons a central air conditioner stops cooling in the summer. It's also one of the most cost-effective AC repairs — the part costs $15–$60 and replacement is straightforward for someone comfortable working around electricity. Understanding capacitor failure helps you diagnose the problem quickly and decide whether to DIY or call a tech. What Does an AC Capacitor Do? An air conditioner has two types of capacitors, and both are critical: Furnace Direct ·... Read more...
Furnace Rollout Switch: What It Is and Why It Trips
Furnace Rollout Switch: What It Is and Why It Trips A rollout switch that trips is one of those furnace problems that demands immediate attention — not because the repair is expensive, but because the underlying cause can be serious. Understanding what the rollout switch does and why it trips helps you respond correctly. What Is a Rollout Switch? A furnace rollout switch (also called a flame rollout switch or limit rollout switch) is a thermal safety device mounted near the furnace burners. It monitors for "flame rollout" — a... Read more...
How to Read Your Furnace's Diagnostic LED Codes on a Goodman Furnace
How to Read Your Furnace's Diagnostic LED Codes on a Goodman Furnace Modern Goodman furnaces have a diagnostic LED on the control board that blinks error codes when something goes wrong. Instead of calling a technician immediately, you can read the code yourself, look it up, and often determine exactly what's wrong before anyone arrives. This can save you diagnostic fees and help you make better repair decisions. Where to Find the Diagnostic LED The diagnostic LED is located on the furnace's control board, which is inside the furnace cabinet... Read more...
What Is an ECM Blower Motor and Is It Worth the Upgrade?
What Is an ECM Blower Motor and Is It Worth the Upgrade? When comparing furnace models, you'll frequently see references to ECM motors. They show up in mid-range and premium furnace specs and often come with a higher price tag. Understanding what ECM means — and what it actually does for you — helps you decide whether the upgrade is worth it for your Minnesota home. PSC vs. ECM: The Two Types of Blower Motors PSC (Permanent Split Capacitor) Motors PSC motors are the traditional blower motor used in entry-level... Read more...
Goodman GMSS96 Review: Is the Entry-Level Furnace Worth Buying?
Goodman GMSS96 Review: Is the Entry-Level Furnace Worth Buying? The Goodman GMSS96 is Goodman's entry-level 96% AFUE single-stage furnace — and it's one of the most popular furnace models in the country. It's the baseline that most people compare when shopping Goodman. This review covers what you get with the GMSS96, who it's right for, and where its limitations are. GMSS96 Specifications Specification Value AFUE 96% Stages Single-stage (one firing rate) Blower motor PSC (fixed speed) Venting Two-pipe PVC (sealed combustion) Heat exchanger Stainless steel tubular primary + aluminized steel... Read more...
Air Conditioner Refrigerant Types: R-22, R-410A, and R-454B Explained
Air Conditioner Refrigerant Types: R-22, R-410A, and R-454B Explained If you've had an AC technician mention refrigerant types, or you're shopping for a new air conditioner, you may have encountered the terms R-22, R-410A, and R-454B. These are the three generations of residential AC refrigerant, and understanding the differences matters for maintenance, repair decisions, and equipment purchases. R-22 (Freon): The Old Standard — Now Banned R-22, commonly called Freon (a Chemours brand name), was the dominant residential AC refrigerant for decades. It was used in virtually all central AC systems... Read more...
Goodman vs. Rheem Furnace: A Side-by-Side Comparison
Goodman vs. Rheem Furnace: A Side-by-Side Comparison Goodman and Rheem are both major residential HVAC manufacturers with broad dealer networks and full product lineups. If you're shopping for a new furnace in Minnesota and comparing these two brands, here's what you need to know about how they stack up on efficiency, pricing, reliability, and warranty. Brand Background Goodman Goodman Manufacturing, based in Houston, TX, is a subsidiary of Daikin Industries — the world's largest HVAC company. Goodman focuses on producing reliable residential equipment at competitive prices and is distributed through... Read more...
How to Prepare Your HVAC System for a Minnesota Winter
How to Prepare Your HVAC System for a Minnesota Winter In Minnesota, your heating system isn't optional equipment — it's life safety equipment. A furnace that fails at -15°F in January isn't just uncomfortable, it's dangerous. A 30-minute fall checkup can prevent a cold-night breakdown. Here's what to do before the heating season starts. Fall HVAC Prep: The Checklist 1. Replace the Furnace Filter Start the heating season with a fresh filter. If you run a high-MERV filter, check it after the first 30 days of heavy use — cold... Read more...
Ductwork Cleaning in Minnesota: Is It Worth It?
Ductwork Cleaning in Minnesota: Is It Worth It? Duct cleaning is a service that generates a lot of marketing — and a lot of confusion. Companies advertise dramatic before-and-after photos and claim your ducts are full of mold, debris, and allergens. Skeptics point out that the EPA hasn't found definitive evidence that duct cleaning improves air quality in most homes. The truth is more nuanced, and whether duct cleaning is worth it depends heavily on your specific situation. What Duct Cleaning Actually Involves Professional duct cleaning uses a combination of... Read more...
Boiler vs. Furnace in Minnesota: What's the Difference and Which Is Right for You?
Boiler vs. Furnace in Minnesota: What's the Difference and Which Is Right for You? Many Minnesota homeowners have questions about boilers and furnaces — especially when their old system needs replacement and they're wondering if they should switch types. Understanding the fundamental difference between the two systems, and what makes each right for different situations, helps you make a confident decision. The Core Difference: Air vs. Water A furnace heats air and distributes it through ductwork. A boiler heats water and distributes it through pipes to radiators or in-floor tubing.... Read more...
What Size Furnace Do I Need? A Minnesota Homeowner's Sizing Guide
What Size Furnace Do I Need? A Minnesota Homeowner's Sizing Guide Getting furnace sizing right matters more than most homeowners realize. Too small and the furnace runs constantly but can't keep up on the coldest days. Too large and it short-cycles — firing up, heating the house fast, shutting off, and repeating — which wastes energy, wears out components faster, and creates uneven temperatures. This guide helps you estimate the right size for a Minnesota home. Why Minnesota Requires Larger Furnaces The US is divided into climate zones for heating... Read more...
Goodman vs. Lennox Furnace: Which Brand Is the Better Value?
Goodman vs. Lennox Furnace: Which Brand Is the Better Value? Goodman and Lennox are two of the most recognized names in residential HVAC. They represent very different positions in the market — Goodman built its reputation on reliable equipment at accessible prices, while Lennox markets itself as a premium brand with top-tier efficiency and features. But does the Lennox premium translate to real-world value for Minnesota homeowners? Brand Overview Goodman Manufacturing Goodman is a Houston, TX-based manufacturer owned by Daikin Industries (the world's largest HVAC company). Goodman focuses on delivering... Read more...