Blomberg Dryer Not Heating: Vented and Heat Pump Models
If your Blomberg dryer runs but the clothes come out cold or damp, the cause depends on the type of dryer. Blomberg sells vented dryers (like the DV17600W), which use an electric heating element, and heat pump dryers (like the DHP24400W and DHP24412W), which heat the air with a small heat pump. Here’s how to tell what’s wrong.
Vented Blomberg dryer not heating
- Check the breaker. Vented electric dryers use a double breaker. If one half trips, the drum turns but there’s no heat.
- Check the airflow. Clean the lint filter, make sure the duct behind the dryer isn’t crushed, and check that the outside vent flap opens when the dryer runs. Poor airflow makes the dryer overheat, and the safety thermostat cuts the heat.
- Check the Drying light. On the DV17600W, Blomberg’s manual says a flashing Drying light means the heat sensor has failed. Stop using the dryer and call for service.
If power and airflow are good, the usual failed parts are the heating element, a thermal cut-out or thermostat, or the temperature sensor. If a safety part tripped because of a blocked vent, the vent must be cleared too, or the problem comes back.
Heat pump Blomberg dryer not heating
Heat pump dryers work at lower temperatures than vented dryers. The air inside is warm, not hot, and cycles take longer. That’s normal. Signs of a real problem are:
- The drum feels cool halfway through a cycle.
- Drying times keep getting longer week after week.
- Clothes come out damp on a normal load.
Before calling, clean the lint filter, the filter drawer sponge and cloth behind the kick plate, and gently vacuum the evaporator fins behind the drawer. A clogged filter drawer is the number one cause of poor heating and drying we see on Blomberg heat pump dryers. See Blomberg heat pump dryer not drying for the full cleaning steps.
If everything is clean and the dryer still doesn’t warm up, the cause is usually inside: lint packed deep in the heat exchanger, a weak fan, a failed sensor or a problem with the compressor or refrigerant system.
Room temperature matters
Blomberg rates its heat pump dryers for about +5°C to +35°C. In an unheated garage in winter, a heat pump dryer can struggle to heat. In a small closed laundry closet in summer, it can overheat and slow down. Closet installs need the ventilation openings described in the manual.
What a repair involves
On vented dryers we test the element, thermostats, thermal cut-out and sensor, and check the airflow. On heat pump dryers we clean the air path, test the fans and sensors, and check the heat pump. Our technician holds an ODP certification for refrigerant handling, so sealed-system problems can be diagnosed properly.
Frequently asked questions
Is it safe to keep using a dryer that isn’t heating?
If the cause might be overheating from blocked airflow, or the Drying light is flashing on a vented model, stop using it until it’s checked.
How long should a heat pump dryer take?
Longer than a vented dryer. Compare with how long the same load took when the dryer was new.
More Blomberg dryer guides: heat pump dryer not drying, warning lights explained, water tank and drain hose.
Need a Blomberg dryer technician?
Doctor Appliance repairs Blomberg heat pump and vented dryers in Surrey, Burnaby, New Westminster, Vancouver, Coquitlam, Richmond, Delta, Langley and across Metro Vancouver. Call 604-729-0499 (8am–8pm daily) or leave a request online. Have the model number from the label inside the door ready. See also: Blomberg dryer repair and Blomberg appliance repair.
