Get your Coleman DGAA070BDTA heating reliably again with genuine OEM replacement parts from Repair Clinic. The 070 code identifies a 70,000 BTU input rating in Coleman’s DGAA gas furnace series, a Coleman Evcon line now supported by Johnson Controls alongside York and Luxaire, and common in manufactured home installations. The parts that wear most are the DGAA070BDTA draft inducer motor, the igniter, the flame sensor, and the control board. Check your build on the DGAA070BDTA parts list, then shop the complete Coleman furnace parts catalog.
DGAA070BDTA Furnace Details and the BDTB Revision
This DGAA070BDTA shares its 70,000 BTU cabinet with the later DGAA070BDTB. The final letter marks a production revision: most ignition, sensing, and blower parts carry across both, but control boards and pressure switches can change between runs, so match those to the exact suffix on your data plate. The furnace runs a conventional sequence: the inducer purges the DGAA070BDTA heat exchanger, the pressure switch proves draft, the igniter heats, the gas valve opens, and the flame sensor confirms combustion. A failure at any stage shows as an LED code on the board, documented in the DGAA070BDTA manual and on the DGAA070BDTA diagram. For DGAA070BDTA repair steps by symptom, open the model troubleshooting guide.
Most Replaced Coleman DGAA070BDTA Furnace Parts
Draft Inducer Motor and Pressure Switch Faults
The inducer vents combustion gases and creates the draft the pressure switch must sense. A motor with worn bearings hums or grinds, starts slowly, and finally fails to close the switch. If the code points to the pressure circuit, inspect the vent and tubing, then confirm the motor reaches full speed before buying parts. Replacement inducer motors are listed here.
Igniter Cracks and No-Heat Starts
When the inducer runs and the switch closes but the burner never lights, inspect the DGAA070BDTA igniter. Hot surface elements crack after years of thermal cycling and stop reaching ignition temperature, and repeated failed starts stress the gas valve and board. Hold the new igniter only by its base.
Flame Sensor and Brief Burner Runs
A burner that lights and shuts off within seconds points to the DGAA070BDTA flame sensor. Oxide on the rod lowers the signal below the board’s threshold. Clean it with fine steel wool, and replace the flame sensor if lockouts continue.
Control Board Diagnosis
Count the LED flashes before touching any part, since the code names the failed stage. Replace the board only after the igniter, flame sensor, and pressure switch test good, and order the version that matches your BDTA suffix from the control board filter.
Why Choose Repair Clinic for Coleman DGAA070BDTA Parts
- Genuine Coleman and Johnson Controls Parts: OEM components shared with York and Luxaire equipment. Browse all Coleman furnace parts.
- Suffix-Matched Boards: BDTA and BDTB control boards are listed separately, while shared ignition parts are flagged.
- Sequence-Based Diagnosis: Read the code, clean the flame sensor, test the igniter and pressure switch, then evaluate the board.
- Shop DGAA070BDTA Parts Online: In-stock DGAA070BDTA replacement parts and DGAA070BDTA furnace parts ship the same day with a 365-day return policy.
Coleman DGAA070BDTA Furnace FAQ
Are DGAA070BDTA and DGAA070BDTB parts interchangeable?
Most ignition, sensing, and blower parts are shared. Control boards and pressure switches can differ between the two revisions, so match those to the exact suffix on your data plate.
Why won’t my furnace start?
Read the LED code first. The most common causes are a cracked igniter, a pressure switch that never closes because of a slow inducer or blocked vent, or a control board fault.
What are signs of a failing draft inducer motor?
Humming, grinding, or squealing at startup, slow spin-up, and pressure switch lockouts before the igniter energizes. Check the vent and tubing before replacing the motor.
Where can I find the parts list and manual?
Open the diagrams and manuals tab on this page. The exploded diagrams group DGAA070BDTA parts by burner, blower, and electrical sections, and the manual includes wiring and fault codes.
