Bryant 577D----A Troubleshooting Chart Gas Furnace Operation, Burners will not ignite

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Table 10 – Troubleshooting Chart - Gas Furnace Operation

SYMPTOM

 

 

 

 

CAUSE

 

REMEDY

 

 

 

 

 

 

 

 

 

 

Water in gas line

Drain. Install drip leg.

 

No power to unit

Check power supply fuses, wiring or circuit

 

breaker.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check transformer.

 

No 24--v power supply to control circuit

NOTE: Some transformers have internal over--

 

current protection that requires a cool--down peri-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

od to reset.

 

 

 

 

 

 

 

 

 

Burners will not ignite

Mis--wired or loose connections

Check all wiring and wire nut connections

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check flame ignition and sense electrode posi-

 

 

 

 

 

 

 

 

Misaligned spark electrodes

tioning.

 

 

 

 

 

 

 

Adjust as necessary.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1. Check gas line for air. Purge as necessary.

 

 

 

 

 

 

 

NOTE: After purging gas line of air, wait at least 5

 

No gas at main burners

minutes for any gas to dissipate before attempt-

 

 

 

 

 

 

 

ing to light unit.

 

 

 

 

 

 

 

2. Check gas valve.

 

 

 

 

 

 

 

 

 

 

Inducer pressure switch not closing

1. Check pressure switch wires, connections,

 

and tubing. Repair or replace if necessary.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dirty air filter

Clean or replace filter as necessary

 

Gas input to unit too low

Check gas pressure at manifold match with that

 

on unit nameplate

 

 

 

 

 

 

 

Inadequate heating

 

 

 

 

 

 

 

 

Unit undersized for application

Replace with proper unit or add additional unit

 

Restricted airflow

Clean or replace filter. Remove any restriction.

 

Limit switch cycles main burners

Check rotation of blower, temperature rise of unit.

 

Adjust as necessary.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1. Tighten all screws around burner compartment

 

 

 

 

 

 

 

2. Cracked heat exchanger. Replace.

 

 

 

 

 

 

 

3. Unit over--fired. Reduce input (change orifices

Poor flame characteristics

Incomplete combustion results in: Aldehyde odors,

or adjust gas line or manifold pressure).

carbon monoxide, sooting flame, floating flame

4. Check burner alignment.

 

 

 

 

 

 

 

 

5. Inspect heat exchanger for blockage. Clean

 

 

 

 

 

 

 

as necessary.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

577D-- -- A

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Contents Table of Contents Installation InstructionsCheck Equipment Safety ConsiderationsReceiving and Installation IntroductionUnit Falling Hazard Provide ClearancesRig and Place Unit UNIT/STRUCTURAL Damage HazardCPRFCURB012A00 SizeCPRFCURB010A00 CPRFCURB011A00577D--A24-30 Unit Dimensions 577D--A36-60 Unit Dimensions Physical Data Unit 577D--A Indoor FAN Physical Data Con’t Unit 577D--ASelect and Install Ductwork Cabinet Model Rigging WeightPersonal Injury Hazard Supply and Return Duct Opening Provide for Condensate DisposalInstall Flue Hood Install Gas PipingCarbon Monoxide Poisoning Hazard Install Electrical Connections Fire or Explosion HazardUnit Component Damage Hazard Humidifier Connections Outdoor Air Temperature Sensor OATElectronic Air Cleaner Maximum Gas Flow CapacityTypical Installation Control Plate FIRE, EXPLOSION, Electrical Shock and Environmental Hazard Unit Start-Up and TroubleshootingPRE-START-UP START-UPFurnace Control Troubleshooting Indoor Fan Motor Troubleshooting577D a A10217L A10219C A10219L HP/AC Control Troubleshooting Unit Operation Hazard Sequence of OperationHeat Pump/Air Conditioner Board Status Codes Air Delivery and Temperature Rise at Rated Heating InputUnit Damage Hazard Dehumidification ModeEvolution Controlled LOW Ambient Cooling Check GAS Input Natural GASCanada Fire and Unit Damage HazardU.S.A Altitude Derate Multiplier for U.S.ACheck Burner Flame Check GAS Input Propane GASCheck for Refrigerant Leaks Start-Up AdjustmentsHeating Inputs ECM Wet Coil Pressure Drop IN. W.CFilter Pressure Drop Table IN. W.C Cooling Charging Table-Subcooling Maintenance Outdoor Fan Inducer Pressure SwitchElectrical Controls and Wiring Outdoor Coil, Indoor Coil, and Condensate Drain PanCopeland Scroll Compressor Puron Refrigerant Pressure Switches Refrigerant CircuitRefrigerant Circuit Indoor AirflowTroubleshooting Final Checks Care and Maintenance Observe all warnings, cautions, and bold text Symptom Cause Remedy Troubleshooting Chart CoolingBurners will not ignite Troubleshooting Chart Gas Furnace OperationIII. START-UP Electrical Supply Voltage Compressor Amps START-UP ChecklistTemperatures Preliminary Information Model no

577D----A specifications

The Bryant 577D----A is a highly regarded model in the HVAC industry, representing a blend of efficiency, performance, and advanced technology. This heating and cooling unit is designed to cater to a variety of residential and light commercial applications, making it a versatile choice for consumers looking to enhance their indoor climate control systems.

One of the standout features of the Bryant 577D----A is its impressive energy efficiency rating. With a Seasonal Energy Efficiency Ratio (SEER) typically exceeding 14, this model is engineered to reduce energy consumption, helping homeowners lower their utility bills while minimizing environmental impact. The unit also employs a two-stage cooling system, which not only improves comfort by maintaining more consistent temperatures but also provides enhanced dehumidification during hotter months.

The technology used in the Bryant 577D----A is noteworthy. The unit incorporates a variable-speed compressor that adapts to the specific cooling or heating needs of the space, ensuring optimal performance at all times. This advanced feature not only contributes to energy savings but also allows for quieter operation compared to single-stage systems. The inclusion of a smart thermostat integration further enhances convenience, enabling users to manage their HVAC system remotely and optimize settings according to their schedules.

Additional characteristics of the Bryant 577D----A include a durable construction designed to withstand various environmental conditions. The cabinet is made from quality materials that protect against corrosion and other factors that could affect the unit's longevity. Furthermore, the unit operates quietly, thanks to sound-dampening technologies, which is a significant advantage for residential areas where noise can be a concern.

Maintenance is also simplified with the Bryant 577D----A, as it is equipped with self-diagnostics for easy troubleshooting. This feature alerts users to potential issues before they escalate, promoting efficient operation and prolonging the lifespan of the system.

In conclusion, the Bryant 577D----A stands out as a superior choice for those seeking reliability and efficiency in their HVAC solutions. With its energy-efficient operation, advanced technologies, and robust construction, it serves as a valuable investment for homeowners committed to comfort and sustainability.
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