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Southport Home Services Residential HVAC Caledonia, Wisconsin
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Carrier Boiler Repair Service

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24 Hour Carrier Boiler RepairGenuine Carrier Boiler Parts

These single digit temperatures should mean your home is as warm and inviting as ever; but if your Carrier boiler fails you in the middle of the night, leaving you and your family scavenging for blankets and layers, who are you going to call? The professionals at Southport Home Services provide warrantied residential heating repair and maintenance across Wisconsin, at affordable rates for every family to enjoy. Our boiler repair contractors know how to diagnose failed parts in all Carrier boiler models, including:

  • Performance Series Gas Boilers
  • Performance Series Oil Boilers
  • Comfort Series Gas Boilers

Trust the expert boiler repair team at Southport to keep your family comfortable in a warm house this winter. If things look bleak, we offer Carrier boiler installation, too! As the largest factory authorized Carrier dealer in the state, Southport offers great deals and great prices on Carrier boilers.

Carrier boiler reviews

Carrier brand HVAC systems are known for their great energy-efficiency and resulting lowered bills for homeowners. At great cost saving abilities comes some needed regular maintenance. Some Carrier boiler reviews mention:

  • Cracked boiler block
  • Loud noises
  • Air blower failure
  • Main control panel failure

Regular maintenance—and not just emergency repairs—has the potential to prevent any of these mishaps from happening to your Carrier Boiler. Our Southport Club membership means you get the best of our services, whenever you need them.

Carrier Boiler Repair

Carrier boiler maintenance

Our professionals are trained to diagnose and repair all kinds of Carrier boiler issues. We handle problems of every size, including:

  • Carrier Boiler cracked
  • Carrier Boiler main control panel failure
  • Carrier Boiler loud rattling

Carrier Boiler Error Codes

Most Carrier boilers use an LED light system to display errors. Lights will flash in a certain pattern depending on the error. Your boiler repair technician will use a key similar to the one below to diagnose the problem. Each of the following status codes is a two digit number with the first digit determined by the number of short flashes and the second digit by the number of long flashes.

Carrier Boiler Flash CodeMeaning

Carrier Boiler Error Code 11

NO PREVIOUS CODE - Stored status codes are erased when power (115VAC or 24VAC) to control is interrupted or 48 hours after each fault is cleared

Carrier Boiler Error Code 12

BLOWER ON AFTER POWER UP - (115VAC or 24VAC) - Blower runs for 90 seconds, if unit is powered up during a call for heat (R-W closed).

Carrier Boiler Error Code 13

LIMIT OR FLAME ROLL-OUT SWITCH LOCKOUT - Control will auto reset after three hours. Reset switch or replace fuse link. Refer to #33

Carrier Boiler Error Code 14

IGNITION LOCKOUT - Control will auto-reset after three hours. Refer to #34

Carrier Boiler Error Code 21

GAS HEATING LOCKOUT - Control will NOT auto-reset. Check for: - Mis-wired gas valve - Defective control (valve relay)

Carrier Boiler Error Code 22

ABNORMAL FLAME-PROVING SIGNAL - Flame is proved while gas valve is de-energized. Inducer will run until fault is cleared. Check for: - Leaky gas valve - Stuck-open gas valve

Carrier Boiler Error Code 23

PRESSURE SWITCH DID NOT OPEN - Check for: - Obstructed pressure tubing - Pressure switch stuck closed.

Carrier Boiler Error Code 24

SECONDARY VOLTAGE FUSE IS OPEN - Check for: - Short-circuit in secondary voltage (24VAC) wiring

Carrier Boiler Error Code 31

HIGH-HEAT PRESSURE SWITCH OR RELAY DID NOT CLOSE OR REOPENED - Check for: - Control relay may be defective - Refer to #32

Carrier Boiler Error Code 32

LOW HEAT PRESSURE, DRAFT SAFEGUARD AUX-LIMIT (when used*) SWITCH DID NOT CLOSE OR REOPENED (DOWNFLOW ONLY*) - If open longer than five minutes, inducer shuts off for 15 minutes before retry. Check for:

  • Proper vent sizing
  • Low inducer voltage (115VAC)
  • Defective Blower motor or capacitor
  • Defective inducer motor
  • Defective pressure switch
  • Restricted vent
  • Inadequate combustion air supply
  • Excessive wind
  • Disconnected or obstructed pressure tubing If it opens after trial for ignition period, blower will come on for 90 second recycle delay

Carrier Boiler Error Code 33

LIMIT OR FLAME ROLL-OUT SWITCH IS OPEN - If open longer than three minutes, code changes to #13. Flame roll-out switch requires manual reset. Check for:

  • Dirty filter or restricted duct system
  • Loose blower wheel
  • Defective blower motor or capacitor
  • Defective switch or connections
  • Inadequate combustion air supply (Flame Roll-out Switch or fuse link open)
  • Open Flame Roll-out switch, or fuse link. Manual reset or replace

Carrier Boiler Error Code 34

IGNITION PROVING FAILURE - Control will try three more times before lockout #14 occurs. If flame signal is lost after trial for ignition period, blower will come on for 90 second recycle delay. Check for:

  • Gas valve defective or gas valve turned off
  • Oxide buildup on flame sensor (clean with fine steel wool)
  • Proper flame sense microamps (.5 microamps D.C. min., 4.0 - 6.0 nominal in HIGH HEAT)
  • Green wire MUST be connected to furnace sheet metal.
  • Flame sensor must be ungrounded.
  • Manual valve shut-off.
  • Defective Hot Surface Ignitor
  • Control ground continuity
  • Inadequate flame carryover or rough ignition.
  • Low inlet gas pressure

Carrier Boiler Error Code 43


  • Disconnected or obstructed pressure tubing
  • Pressure switch stuck open
  • Refer to #32 and #33

Carrier Boiler Error Code 45


Troubleshooting a Carrier Boiler

Wisconsin Carrier Boiler Repair

Wisconsin Boiler Repair

We are Southport and we repair Carrier boilers 24 hours a day, 7 days a week. Our home heating contractors will endure blistering cold and harsh snowstorms so your family can stay warm during brutal Wisconsin winters. Contact us for:

Air Conditioning
Central Air Conditioning unit service & installation
Furnace & heating systems repair & installation
Indoor Air Quality
Indoor air quality improvement equipment service & installation
Residential Plumbing Serivices in Southeastern Wisconsin