Error code · Dryer

ASKO TD70.1 Heat-Pump Dryer Code F29: Evaporator Needs Cleaning

Heat-pump versions of the TD70.1 dryers from ASKO, the ones with the type B LCD panel like the T743C and T753C, can show F29. The owner's manual prints no cause, but it points to the evaporator,…

Medium · inspection needed

(713) 804-6320

Code: F29
Appliance: Dryer
Brand: ASKO
Warranty: 30-day workmanship

What F29 means

Heat-pump versions of the TD70.1 dryers from ASKO, the ones with the type B LCD panel like the T743C and T753C, can show F29. The owner's manual prints no cause, but it points to the evaporator, the coil that pulls moisture out of the warm air. When lint builds up on the evaporator filter, which has a net layer and a foam layer, or on the evaporator itself, drying slows down and the dryer stops the cycle.

Common causes of F29

Lint caught in the net and foam layers of the evaporator filter
Dust or lint coating the evaporator itself
Poor airflow in the room or around the dryer

✓ One safe check you can try

1. Use the main switch to turn the dryer off, and let it cool. 2. Take out the evaporator filter and clean both the net and the foam, as the owner's manual describes. 3. Clean the evaporator with a light touch, following the same instructions. 4. Turn the main switch back on and restart the program. If F29 returns, schedule service.

! Why to stop there

How much lint is packed deeper than you can reach
Whether the heat-pump circuit is cooling the air as it should
Whether a condensation or airflow part is behind the slow drying

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Dryer codes

Protection enabled (screen lock)ASKO T5 Dryer Message "Protection Enabled (Screen Lock)" SENSORASKO T761 and T781 Dryer Message "Sensor" THERMISTORASKO T761, T781 and TD70 Dryer Message "Thermistor" F2ASKO T731 Dryer Code F2: Power Cut or Three-Hour Drying Limit F3ASKO T731 Dryer Code F3: Thermistor Problem F30ASKO TD70.1 Dryer Code F30: Cycle Ran Over 200 Minutes F4ASKO T731 Dryer Code F4: Overheat Protection Tripped F5ASKO T731 Dryer Code F5: Moisture Sensor Reading

F29F29 questions

What does the evaporator do in a heat-pump dryer?

It is a coil that cools the damp air so the moisture turns to water. Lint on it blocks the air and slows drying. F29 asks you to clean the evaporator filter and the evaporator.

How do I reset F29?

Switching the dryer off at the main switch clears the message. It comes back if the evaporator or its filter is still clogged, so clean them first.

Can you service a heat-pump dryer like mine?

Yes. These are older machines, and we tell you straight if a repair does not make sense. You can book by calling us or filling out the online form. The written price is yours to approve before work starts, and the repair is backed by our 30-day workmanship warranty.

Book a visit

Still seeing F29?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 804-6320