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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Heating & Cooling in North St. Paul, MN
Central Minnesota Heating and Cooling repairs and replaces furnaces, ACs, heat pumps and boilers in North St. Paul (Ramsey County), about 13 miles from downtown Minneapolis.
HVAC service in North St. Paul, MN
North St. Paul began as Henry Castle's 1887 railroad town beside Silver Lake, doubled its population in the 1950s, and still gets its electricity from a city-owned utility rather than Xcel Energy.
- County
- Ramsey County
- ZIP code
- 55109
- Natural gas
- Xcel Energy
- Electric
- City of North St. Paul (municipal)
- From downtown Minneapolis
- about 13 miles
The city has owned North St. Paul's electric utility since 1898 and is one of twelve member cities of the Minnesota Municipal Power Agency, its wholesale supplier; Xcel Energy is the gas utility only.
Updated October 27, 2026 · By Eric Brown, owner, Central Minnesota Heating and Cooling
What HVAC work do we do most in North St. Paul?
- Heat pumps added beside Xcel-fed gas furnaces, with the changeover temperature set from city electric rates and Xcel gas prices
- New supply and return runs for additions and finished basements in remodeled older houses
- First replacements of the original furnaces and condensers in townhomes and condominiums built since 2000
- Planning AC and heat pump installs around the city electric utility's rebate requirements
Around town: Silver Lake · Casey Lake · North St. Paul Snowman · Gateway State Trail · Minnesota Highway 36
Book in North St. PaulWhat are North St. Paul homes like to heat and cool?
Henry Castle started buying land by Silver Lake in 1872, and once the Wisconsin Central Railroad ran its line through the center of his town site, building took off: by the end of 1887 the new town had a dozen factories, more than 20 stores and over 80 homes. The Panic of 1893 sank many of those businesses, and North St. Paul stayed a small factory town for decades, with about 3,100 people in 1940. Houses from that stretch were designed around coal. Whatever heats them now is a conversion, and the old masonry chimney is often still in service.
Then the population doubled in the 1950s, from about 4,200 to 8,500, and passed 11,900 by 1970 before leveling off as the city filled in. That postwar wave is most of the housing: compact houses with basement mechanicals, many on their third furnace, with the water heater still venting up the original chimney. New construction since then has mostly been townhomes and condominiums on redevelopment and infill sites, much of it after 2000, so that equipment is now coming up on its first replacement.
What goes wrong with heating in North St. Paul in winter?
Cold rooms in North St. Paul tend to trace back to a remodel. Buyers here commonly take on an older house and update it, and a family room built off the back, or a basement finished into bedrooms, often gets one duct tapped off the far end of the old trunk and no return at all. On a subzero night that room falls well behind the thermostat. A properly sized supply and return, or a ductless head, fixes it; a bigger furnace doesn't.
What goes wrong with cooling in North St. Paul in summer?
Central air is an add-on in most of North St. Paul's postwar houses, so the coil sits on a furnace whose ductwork was laid out for heat. On a muggy July afternoon that coil can run short of air and ice over, and the condensate it sheds all day will find any clog in the trap. A spring checkup catches that before the first hot week. Where the post-2000 townhomes line their condensers up, the units trade hot exhaust on still afternoons.
Which utilities and rebates apply in North St. Paul?
North St. Paul splits its programs between two utilities. For a new gas furnace, look to Xcel Energy's heating equipment rebates, whose page points you to participating contractors, so settle that question before choosing an installer. For central air and heat pumps, look to the city's electric utility, which runs its own rebates and posts each year's forms separately.
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.
Most-requested in North St. Paul
Furnace repair in North St. Paul Most calls are 80% furnaces sharing a chimney with the water heater, and the flat-rate price is written before any work. Furnace replacement in North St. Paul A new furnace for a North St. Paul house runs $4,500–$9,500 installed with us, from about $4,500 for an 80% model to $9,500 for 96–98%. AC repair in North St. Paul Postwar houses with central air added onto heat-sized ducts are the ones that freeze coils, and the price is written first. AC replacement in North St. Paul Central AC replacement in North St. Paul costs $5,200–$9,800 installed with us, sized by a Manual J load calculation and quoted in writing. Heat pumps in North St. Paul Adding a heat pump to a North St. Paul home costs about $7,500–$14,500 installed, with a written flat-rate quote. Mini-splits in North St. Paul Ductless mini-splits cost $4,200–$12,500 installed in North St. Paul, single-zone to multi-zone, with a written flat-rate quote first. Tune-ups in North St. Paul A tune-up in North St. Paul costs $129 for one furnace or AC, or $219 for both.
More HVAC services we offer
North St. Paul HVAC questions
Who repairs furnaces and air conditioners in North St. Paul, MN?
Central Minnesota Heating and Cooling, owned by Eric Brown and in business since 2009, serves North St. Paul and nearby towns in Ramsey County, about 13 miles from downtown Minneapolis. We're open 7 days, 7am–9pm, and no-heat calls get priority. Call 612-429-3465.
How much does an HVAC service call cost in North St. Paul?
An HVAC service call in North St. Paul 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.
Our electricity comes from the City of North St. Paul. Which rebates cover a new AC or heat pump?
The city utility's, not Xcel's electric programs. Its rebate list has included quality-installed central air conditioners and air-source heat pumps, plus AC tune-ups and smart thermostats, for customers with an active residential electric account, filed within a year of purchase with a dated receipt. Ask the city what a quality installation has to document before the work starts. A new gas furnace is different: that rebate comes from Xcel Energy, your gas utility.
Does a dual-fuel heat pump make sense in North St. Paul, where gas and electricity come from different utilities?
Dual fuel can make sense in North St. Paul. The heat pump does the cooling, then handles heating through the shoulder seasons and milder winter weather, and below a set outdoor temperature the furnace takes the load. Where that switch happens is a cost decision, and here it depends on the city's electric rate against Xcel's gas price. We set the changeover with your actual bills in hand, and the furnace stays sized to heat the house alone on the coldest nights.
We're buying an older house near downtown North St. Paul. What should we have checked before the first winter?
Start with the venting. Houses from the town's early decades were built for coal, and today's gas furnace and water heater often still vent into the original masonry chimney, which may need a liner. Ask for a draft and carbon monoxide test, and confirm a CO alarm sits within 10 feet of every bedroom, as state law requires. Then look at any additions, because the ducts feeding them are often an afterthought.
Our North St. Paul townhome was built after 2000. Is the original furnace due for replacement?
Not automatically, but it's in the age range where parts start failing. Furnaces from those years commonly need an igniter, inducer or pressure switch by now, and those are normal repairs on a unit that has been maintained. If the heat exchanger is cracked or the repairs keep stacking up, replacing it makes more sense, and if the AC is the same age we can price the pair together. Check your association's rules on exterior changes first.
Also serving near North St. Paul
- Oakdale, MN 4 mi
- Mahtomedi, MN 4 mi
- Maplewood, MN 4 mi
- Lake Elmo, MN 4 mi
- Little Canada, MN 4 mi
- Vadnais Heights, MN 5 mi
- White Bear Lake, MN 5 mi
- Saint Paul, MN 6 mi
Guides for North St. Paul homeowners
Orphaned Water Heater: Why a New Furnace Needs a Liner
An 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 guideWhy Is My AC Freezing Up? Ice on Lines or Coil
Ice 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 guide- R-22 AC in Minnesota: Repair, Recharge or ReplaceCooling
- Lennox Furnace Error Codes: Blinking Lights and AlertsHeating
- Why Is My Thermostat Screen Blank?Heating
Brands we service in North St. Paul: Carrier · Trane · Lennox · Goodman · Rheem · Mitsubishi Electric · Daikin · American Standard · Navien · Weil-McLain · and every other major brand
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Heat out in North St. Paul? Call or send a request.