Table 19 — Heating Service Analysis

PROBLEM

CAUSE

REMEDY

Burners will not ignite.

Misaligned spark electrodes.

Check flame ignition and sensor electrode positioning. 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 minutes 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. Check

 

 

24-v circuit breaker; reset if necessary.

 

Miswired or loose connections.

Check all wiring and wire nut 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.

Install alternate motor, if applicable, or adjust pulley to increase

 

 

fan speed.

 

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 characteristics.

Incomplete combustion (lack of combustion air)

Check all screws around flue outlets and burner compartment.

 

results in:

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 turn off.

Unit is locked into Heating mode for a one minute

Wait until mandatory one minute time period has elapsed or

 

minimum.

power to unit.

LEGEND

 

 

GR — Ground

 

 

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Bryant 581A operation manual Heating Service Analysis, Burners will not ignite
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581A specifications

The Bryant 581A is a pivotal model in the realm of heating, ventilation, and air conditioning (HVAC) systems, known for its robust performance and energy efficiency. As part of the Bryant product lineup, the 581A offers a blend of innovative technologies combined with reliable engineering, making it a suitable choice for both residential and light commercial applications.

One of the standout features of the Bryant 581A is its outstanding energy efficiency. With a Seasonal Energy Efficiency Ratio (SEER) rating of up to 16, this model meets Energy Star qualifications, ensuring that homeowners can enjoy lower utility bills while helping to reduce their environmental footprint. The efficiency is further enhanced by the unit’s environmentally friendly refrigerant, which not only improves performance but also aligns with modern sustainability standards.

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Overall, the Bryant 581A represents an excellent balance of efficiency, durability, and modern technology. With features aimed at enhancing user comfort and reducing operational costs, it stands out as a reliable solution in the competitive HVAC market. Whether for new installations or replacements, the Bryant 581A is a testament to the brand’s commitment to quality and innovation in home climate control.
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