Midea · Furnace · Heating

High fire heat call (W1 + W2)

A2L 96 percent two-stage (BGH96M)

What happens, in order

Call for heat; inducer on high speed, low pressure switch closes
Inducer to low speed; igniter preheats
Gas valve opens, burners light, igniter off after 3 s
5 s delay before gas valve, inducer and pressure switch go to the high stage
30 s later the blower motor starts
Running on high stage
Call ends inducer shuts down after a 15 s delay
Blower runs at high speed for 30 s
Fan delay then runs the time set by S1-3 and S1-4 (default 180 s)

Timings and thresholds

Item	Value
Inducer high / switch proving	15 s
Igniter preheat	17 s
Delay to high stage	5 s
Blower on delay	30 s
Inducer stop delay after call ends	15 s
Blower high speed after call ends	30 s
Fan off delay (default)	180 s

Codes you may see during this

Applies to: Midea A2L 96 percent gas furnace

Models

BGH96M060B3ABGH96M080B3ABGH96M080C4ABGH96M100C5ABGH96M100D5ABGH96M120D5A

More Midea furnace sequences

Failed ignition and re-ignition · Ignition
Low fire heat call (W1 only) · Ignition
Refrigerant leak sensor response (A2L coil) · Other

Midea error codes · Midea tips · All Midea sequences

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Source: Midea A2L 96 percent gas furnace troubleshooting guide, Appendix A1.2. Written in our own words; timings can differ by model and software version, so check the manual for your exact unit.

For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.