Bosch Dryer · Code E12

Bosch Dryer E12 code: Overheating from restricted airflow

The dryer is overheating because air can't move through it freely. On heat pump models, Bosch also connects this code to buildup in the heat pump.

Most common causes

  1. Clogged lint filter
  2. Blocked, bent or crushed exhaust vent
  3. Lint or buildup inside the dryer's airflow path

What you can safely check yourself

  1. Clean the lint filter thoroughly.
  2. Check that the vent duct isn't crushed or bent behind the dryer.
  3. Make sure the outside vent opening isn't blocked.

Unplug the appliance before moving or cleaning anything. Do not open panels, touch gas connections or bypass safety switches.

Checked against: bosch-home.com. Meanings can vary by model; check your owner’s manual.

Quick answers

What does E12 mean on a Bosch Dryer?

The dryer is overheating because air can't move through it freely. On heat pump models, Bosch also connects this code to buildup in the heat pump.

Can I clear the E12 code myself?

Try these first: Clean the lint filter thoroughly. Check that the vent duct isn't crushed or bent behind the dryer. Make sure the outside vent opening isn't blocked. Call a technician if the filter and vent are clear and E12 returns.

How much does it cost to fix a E12 code?

It depends on the cause. At FixPro the diagnostic visit is $79.00 and is credited in full to the repair; you get a flat-rate quote before any work starts.

Other Bosch Dryer codes

E01 · Lint filter blockedE03 · Condensate drain hose blockedE04 · Dryer overloadedE16 · Door opened during cycle

Still showing the code?

A FixPro technician will find the cause and give you a flat price. $79.00 diagnostic, credited toward the repair.

Book a repair →