Goodman Furnace Error Codes and Blinking Lights
Goodman and Amana furnace error codes from Goodman's own service manuals: how to read the display safely, what E0, E1, E2 and others mean, and when to call.
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Central Minnesota Heating and Cooling repairs and replaces furnaces, ACs, heat pumps and boilers in Mayer (Carver County), about 31 miles from downtown Minneapolis.
Mayer started as a post office called Helvetia in 1875 and took its current name from railroad officials in 1888; today it is a South Fork Crow River town of about 2,450 people on Highway 25 that has grown several times over since 2000.
Updated October 27, 2026 · By Eric Brown, owner, Central Minnesota Heating and Cooling

Around town: South Fork Crow River · Highway 25 · Dakota Rail Regional Trail · Mayer Lutheran High School
Book in MayerMayer had about 550 residents in 2000 and roughly 2,450 by 2020, so most of the town has been built in the last 25 years, in two waves. The 2000s subdivisions are two-stories and split-entries whose original furnaces and condensers are now old enough for first repairs and replacements, and a house finished before 2010 may still have an R-22 air conditioner, since new condensers could use it until then. The 2010s wave has younger equipment, some of it possibly still inside the manufacturer's parts warranty, so check the install date on the nameplate.
Both waves typically put the furnace in an unfinished basement corner, the PVC vents out a side wall and the condenser on a pad beside the garage. The old core by Zion Lutheran is only a few blocks, with houses that still use chimneys and, in places, window air. Farm homes on the edges of town sit on open ground along Highway 25, where wind and drifting snow are part of every winter.
In Mayer's newer subdivisions, houses sit close together with narrow side yards, and that is exactly where the furnace intake and exhaust pipes, the gas meter and often the condenser end up. Snow sliding off two roofs piles into that gap and can bury the PVC terminations in one storm, shutting the furnace down. Check the side yard after heavy snow and clear the pipes by hand. If your terminations sit low, we can raise them or reroute them through a better wall.
Condensate from the air conditioner in a Mayer home drains to a floor drain or, in a basement corner without one, to a small condensate pump. Those pumps wear out, and many 2000s houses are still on the original. When one quits, you find water on the floor, or the AC shuts itself off on a float switch during the first humid week. Pour a little water into the pump in spring to make sure it kicks on. The same pump often drains a high-efficiency furnace in winter, so a failure then can shut off the heat.
Xcel Energy supplies Mayer's electricity, so heat pump and residential cooling rebates come through Xcel; ask whether a rebate needs a registered contractor before you buy. Xcel's AC Rewards program also pays an annual reward for enrolling a connected smart thermostat. For a gas furnace, the rebate comes from whichever utility sends your gas bill, and CenterPoint Energy, where it serves gas, lets you use any dealer.
Rebate programs change every year; check the utility's current terms before you buy. Our guides: Xcel and CenterPoint rebates, heat pump rebates, what happened to the federal credits.
Central Minnesota Heating and Cooling, owned by Eric Brown and in business since 2009, serves Mayer and nearby towns in Carver County, about 31 miles from downtown Minneapolis. We're open 7 days, 7am–9pm, and no-heat calls get priority. Call 612-429-3465.
An HVAC service call in Mayer is a flat $79 trip charge, waived when you approve the repair. You get a written price before any work. Installed prices are on our pricing page.
The roof bakes, heat rises, and many builder two-stories have too few upstairs returns to pull that warm air back to the system. A bigger air conditioner usually makes it worse by cooling the main floor faster and shutting off sooner. We measure airflow room by room; adding return capacity upstairs or a zone damper usually closes the gap.
Running the furnace fan often helps in a Mayer two-story: on low, the blower mixes air between floors and evens out the temperature. Newer furnaces with variable-speed motors use little power at low speed, while older single-speed motors cost more to run nonstop. Filters load up faster, and in summer a constant fan can return some moisture from the coil to the air, so many people use a circulate setting instead.
A 2006 Mayer air conditioner could still use R-22. New air conditioners were allowed to use R-22 until 2010, and some builders installed them right up to then. Check the nameplate on the outdoor unit for the refrigerant type. R-22 hasn't been produced or imported since 2020, so recharging one means reclaimed refrigerant at a high price. If yours is R-22 and low on charge, replacement usually beats paying for repeated recharges.
Leave room around the furnace, water heater and air exchanger for service, with a door wide enough to get equipment in and out. Add supply runs and a return for the new rooms before the drywall goes up. A direct-vent furnace can sit in a closed utility room, but a chimney-vented water heater needs combustion air. If the furnace is near 20 years old, replacing it before you finish is often easier.
Both are used. Neighborhoods in town are on natural gas, while farm homes on the open ground around Mayer are more likely to run propane. Your bills tell you: a gas utility bill means natural gas, tank deliveries mean propane. A propane furnace needs LP-rated setup, and it stops when the tank runs empty, which can look like a furnace failure.
Goodman and Amana furnace error codes from Goodman's own service manuals: how to read the display safely, what E0, E1, E2 and others mean, and when to call.
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Read the guideCentral AC ($5,200–$9,800) or ductless ($4,200–$12,500)? Which costs less to install in Minnesota depends on your ducts, with national ranges and close calls.
Read the guideBrands we service in Mayer: Carrier · Trane · Lennox · Goodman · Rheem · Mitsubishi Electric · Daikin · American Standard · Navien · Weil-McLain · and every other major brand
Heat out in Mayer? Call or send a request.