Goodman Furnace Error Codes and Blinking Lights
Goodman and Amana furnace error codes from Goodman's own service manuals: how to read the display safely, what E0, E1, E2 and others mean, and when to call.
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Furnace repair in Plymouth costs a $79 trip charge, waived when you approve the repair, with a written flat-rate price before work starts. Split-levels near Medicine Lake and 1990s two-stories farther west fail in different ways.
Plymouth's housing spans three decades of growth, and furnace repair follows the age. Split-levels from the 1970s and 1980s near Medicine Lake and Parkers Lake have already been through two or three furnaces, and some still vent an 80% unit and the water heater up one masonry flue, where draft and CO checks come first. The 1990s and 2000s two-stories to the west have condensing furnaces whose parts are wearing out: inducers, igniters, pressure switches and control boards, plus condensate traps that plug and back up.
Undersized returns are a repeat theme. A furnace pulling through too little return air runs hot, trips its limit and wears out its blower motor early. The cold room over the garage isn't a furnace failure, but it's often why people call. We measure temperature rise and static pressure so the repair addresses the cause, and no-heat calls get priority.
Updated October 27, 2026
National averages (HomeGuide, 2026), not our prices: a variable-speed (ECM) blower motor $800–$2,300, an igniter $100–$250, a flame sensor $80–$250. More in the furnace repair cost guide.
Symptom guides: Burning smell · Red tag · Carbon monoxide · Blowing cold air · Signs your furnace needs a technician
Count the flashes and check the chart on the inside of the furnace door; it points to the step of the startup sequence that failed, such as the pressure switch or flame sensing. Write the code down before cutting power, because a reset can clear it. Then call us with it. The code helps the technician know what to expect, though we still test before replacing anything.
Not by itself, but it's worth checking. Older 80% furnaces and gas water heaters were commonly vented together into a masonry chimney. Problems start when the liner deteriorates, the flue is blocked, or kitchen and bath fans depressurize the house, so exhaust spills out instead of rising. Ask us to test draft and measure CO at both appliances during a repair visit.
Goodman and Amana furnace error codes from Goodman's own service manuals: how to read the display safely, what E0, E1, E2 and others mean, and when to call.
Read the guideA 98% AFUE furnace saves only about 2% more gas than a 96% model. Our condensing furnaces run $6,500–$9,500 installed. See what the extra buys.
Read the guideFind your furnace or AC's age on the data plate, then the install sticker or permit record. Serial decoder charts disagree by brand. Call 612-429-3465.
Read the guideHeat out? AC quit? Call or send a request.