Maintain reliable heating from your Coleman DGAT056BDD furnace with genuine replacement parts matched to the unit. Coleman HVAC products share platform history with York and Luxaire under Johnson Controls, while some legacy Coleman furnace lines also overlap with Nordyne era designs, so the full data plate remains important. Common service categories include the igniter, flame sensor, control board, and draft inducer motor. Use the parts list and diagram to verify location and compatibility, then browse the full furnace parts catalog.
Coleman DGAT Platform Service Context
The DGAT series is commonly found in manufactured home heating applications, where cabinet layout and venting details can differ from conventional residential furnaces. Nearby DGAA and DGAT models may share selected ignition and airflow components, but board, harness, and pressure switch calibration can vary by configuration. Read the control board fault code before ordering ignition parts because the code narrows the failed stage of the sequence. For step by step troubleshooting, visit furnace repair help.
Most Replaced Parts for This Coleman Furnace
Igniter and No Heat Diagnosis
If the inducer runs but the burner never lights, confirm the pressure switch circuit closes and then test the igniter for continuity. A visibly cracked or open igniter should be replaced with a model matched Coleman igniter.
Flame Sensor and Immediate Burner Shutdown
When the burner lights and shuts off within a few seconds, clean the flame sensor before replacing it. Also inspect the sensor lead and burner ground path because a weak ground can mimic a dirty sensor. Shop compatible Coleman flame sensor parts.
Draft Inducer Motor and Pressure Switch Sequence
A furnace that stops before ignition may have an inducer, venting, hose, or pressure switch issue. Verify voltage to the inducer, inspect the vent and pressure hose, and listen for bearing noise before replacing the motor. Find Coleman draft inducer motor parts.
Control Board and Blower Airflow
Record the board fault code before disconnecting power. If airflow is weak or the high limit opens, check the filter and test the blower run capacitor before replacing the motor or board. Browse Coleman control board parts and blower motor parts.
Why Choose Repair Clinic for Coleman DGAT Furnace Parts
- OEM focused parts selection with related Coleman, York, Luxaire, and legacy platform context where applicable.
- Model and serial matching helps prevent ordering errors between similar DGAT and DGAA configurations.
- Repair guidance follows the furnace sequence from inducer and pressure verification through ignition and flame sensing.
- Fast shipping, 365-day returns, and furnace troubleshooting resources support the repair from diagnosis through installation.
Coleman Furnace Parts FAQ
What should I check first if this Coleman furnace will not ignite?
Read the control board fault code, confirm the inducer starts, verify the pressure switch circuit closes, and then test the igniter. Clean the flame sensor if the burner lights but shuts off quickly.
How do I identify the correct control board replacement?
Use the full furnace model and serial information from the data plate. Coleman and related Johnson Controls or Nordyne era products can have similar cabinets but different board programming and connectors.
What causes the burner to light and then shut off after a few seconds?
A weak flame signal is a common cause. Clean the flame sensor, inspect its wire and ground path, and replace the sensor only if cleaning and connection checks do not restore stable operation.
What should I inspect before replacing the draft inducer motor?
Check for vent blockage, verify power to the inducer, inspect the pressure hose, and listen for grinding or humming. These checks help separate a motor problem from a pressure switch or venting issue.
