Rheem and Ruud Furnace Error Codes: What They Mean
Rheem and Ruud furnace error codes from Rheem's own 801T manual: what 11, 22, 33, 55 and 57 mean, how to read the display, and when to call a technician.
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Central Minnesota Heating and Cooling repairs and replaces furnaces, ACs, heat pumps and boilers in Brooklyn Park (Hennepin County), about 9 miles from downtown Minneapolis.
Brooklyn Park runs along the Mississippi from 1960s neighborhoods in the south to land north of 85th Avenue that was mostly developed after 2000, so a service call here can mean 50-year-old ductwork or a builder furnace barely out of warranty.
Updated October 27, 2026 · By Eric Brown, owner, Central Minnesota Heating and Cooling

Around town: Edinburgh USA · Eidem Homestead · Coon Rapids Dam Regional Park · Hennepin Technical College · Highway 610. Neighborhoods: Edinburgh
Book in Brooklyn ParkBrooklyn Park was potato country. In the early 1900s it was among the biggest potato-growing communities in the nation, and housing only began appearing in the south part of town in the 1940s. The 1960s and 70s spread ramblers and split-entries across the south end, with basement furnaces, chimney venting and returns sized for heat, and the Edinburgh area filled in later with larger two-stories.
North of 85th Avenue, farmland held out much longer, and a few former potato farms turned into subdivisions only in the last 15 years. Houses there have PVC-vented condensing furnaces, air exchangers for mechanical ventilation, and bonus rooms or upstairs laundry at the end of long duct runs, with condensate lines and pumps that older houses never needed. Along West River Road, houses on river-view lots range from postwar homes to newer builds, and the cottonwoods along the bank shade many of them.
Parts of northern Brooklyn Park are still open ground, and northwest winds across the former fields drift snow against side-wall vents on the newer houses nearby. Condensing furnaces in those homes also produce water, and a condensate line that runs to a pump in a cold garage or out through a wall can freeze during a long cold stretch. In the south end, older ramblers lose heat through original windows and thin attic insulation, so furnaces there run long cycles when it's below zero.
Houses along West River Road and near Coon Rapids Dam Regional Park sit close to the Mississippi, where humidity and cottonwood fluff arrive together in June. Up north, two-stories get hot upstairs, and a bonus room over the garage, with three exposed walls and the longest duct run, is usually the worst. In the south end, many ramblers still run air conditioners that were added onto heat-only ductwork, and the bedroom at the end of the hall lags behind.
CenterPoint's heating rebates cover high-efficiency furnaces, boilers and smart thermostats, with no requirement to use a particular dealer. It also pays toward a ducted heat pump when it's installed alongside a gas furnace, the dual-fuel setup that suits the Edinburgh-area two-stories. Xcel Energy supplies electricity and runs heat pump and central AC rebates through its Trade Partner Network; ask whether the rebate needs a registered contractor.
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 Brooklyn Park and nearby towns in Hennepin County, about 9 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 Brooklyn Park 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.
At this age, usually yes. Builder-grade condensing furnaces from the 2000s and 2010s tend to fail one part at a time: the inducer motor, a pressure switch, the flame sensor or the control board. Each of those is a single-part repair. If the heat exchanger is cracked or several major parts fail in the same season, replacement starts to make more sense.
Yes, the condensate line can freeze in a long cold stretch. A condensing furnace makes water all winter, and a line or pump in an unheated garage or one routed out through a wall can freeze and shut the furnace off. The fix is to reroute the drain to a floor drain or a pump inside the heated space and pitch the line so it empties.
Yes, and it's often ignored. Most manufacturers call for cleaning the filters every few months and the core at least once a year, and the outdoor hoods should stay clear of snow and debris. In winter the exchanger keeps indoor humidity down and frost off the windows; switched off or clogged, it leaves a tight house stuffy. We can check it and its condensate drain during a furnace tune-up if you ask.
Most likely cottonwood seed. When the trees along the river release, the fluff gets pulled onto the condenser coil and mats there, the unit can't shed heat, and it may trip off on a hot afternoon. Turn the power off at the outdoor disconnect, then rinse the coil gently with a garden hose. Skip the pressure washer here; a hard spray bends the thin fins. If it keeps tripping after a cleaning, call us.
Rheem and Ruud furnace error codes from Rheem's own 801T manual: what 11, 22, 33, 55 and 57 mean, how to read the display, and when to call a technician.
Read the guideAn orphaned water heater is left alone in a chimney sized for two appliances after a 90%+ furnace goes in. Why it drafts poorly, the CO risk and the fixes.
Read the guideIce on your AC lines or indoor coil means weak airflow or low refrigerant. What to do right now, checks you can make, and when to call 612-429-3465.
Read the guideBrands we service in Brooklyn Park: Carrier · Trane · Lennox · Goodman · Rheem · Mitsubishi Electric · Daikin · American Standard · Navien · Weil-McLain · and every other major brand
Heat out in Brooklyn Park? Call or send a request.