Table 40 — Heating Service Troubleshooting

PROBLEM

CAUSE

REMEDY

Burners Will Not

Misaligned spark electrodes.

Check flame ignition and sensor electrode positioning.

Ignite.

 

Adjust as needed.

 

No gas at main burners.

Check gas line for air purge as necessary. After purging

 

 

gas line of air, allow gas to dissipate for at least 5 min-

 

 

utes before attempting to relight unit.

 

 

Check gas valve.

 

Water in gas line.

Drain water and install drip leg to trap water.

 

No power to furnace.

Check power supply, fuses, wiring, and circuit breaker.

 

No 24 v power supply to control circuit.

Check transformer. Transformers with internal overcurrent

 

 

protection require a cool down period before resetting.

 

Miswired or loose connections.

Check all wiring and wirenut connections.

 

Burned-out heat anticipator in thermostat.

Replace thermostat.

 

Broken thermostat wires.

Run continuity check. Replace wires, if necessary.

Inadequate Heating.

Dirty air filter.

Clean or replace filter as necessary.

 

Gas input to unit too low.

Check gas pressure at manifold. Clock gas meter for input. If too

 

 

low, increase manifold pressure, or replace with correct orifices.

 

Unit undersized for application.

Replace with proper unit or add additional unit.

 

Restricted airflow.

Clean filter, replace filter, or remove any restrictions.

 

Blower speed too low.

Use high speed tap, increase fan speed, or install

 

 

optional blower, as suitable for individual units.

 

Limit switch cycles main burners.

Check rotation of blower, thermostat heat anticipator settings,

 

 

and temperature rise of unit. Adjust as needed.

 

Too much outdoor air.

Adjust minimum position.

 

 

Check economizer operation.

Poor Flame

Incomplete combustion (lack of

Check all screws around flue outlets and burner

Characteristics.

combustion air) results in:

compartment. Tighten as necessary.

 

Aldehyde odors, CO, sooting flame, or floating

Cracked heat exchanger.

 

flame.

Overfired unit — reduce input, change orifices, or adjust

 

 

 

 

gas line or manifold pressure.

 

 

Check vent for restriction. Clean as necessary.

 

 

Check orifice to burner alignment.

Burners Will Not

Unit is locked into Heating mode for a

Wait until mandatory one minute time period has

Turn Off.

one minute minimum.

elapsed or power to unit.

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Bryant 580F installation instructions Heating Service Troubleshooting

580F specifications

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In conclusion, the Bryant 580F gas furnace is a remarkable choice for those seeking a blend of efficiency, comfort, and advanced technology. Its high AFUE rating, multi-speed blower, smart control compatibility, and safety features make it a reliable option for homeowners looking to invest in a dependable heating solution. As the demand for energy-efficient heating continues to grow, the Bryant 580F stands out as a model that meets and exceeds expectations in the modern heating landscape.