The heat-pump dryer is the most energy-efficient — it uses about 50% less electricity than a vented dryer. Its big advantage is drying at low heat (50°C), making it ideal for delicate fabrics. Its downsides are the high price and the complexity of servicing.
A heat-pump dryer works on the same principle as an air conditioner — compressor + refrigerant + evaporator + condenser. The refrigerant absorbs moisture from the drum, heats the air, and recirculates it. The result: far lower consumption + gentler drying on fabrics. Its extra components: compressor, refrigerant lines, heat-pump coils. The most common faults: a failed compressor (expensive), a refrigerant leak, or clogged heat-pump coils.
The most frequent faults we encounter while servicing Heat-Pump — ranked by occurrence.
Failed compressor (the most expensive)
Refrigerant leak
Heat-pump coils clogged with lint
Faulty temperature sensor
A fault on the inverter board
Faulty drain pump
Faulty moisture sensor
Compressor and refrigerant inspection
Refrigerant recharge when needed
Heat-pump coil cleaning with specialized tools
Replacement of faulty sensors
Inverter board repair
Full safety-system check
Annual preventive maintenance
Because it runs at low heat (50°C instead of 75°C) to protect fabrics. It takes longer but uses 50% less electricity.
It depends on usage. If you use it daily, the electricity savings cover the difference in 3-4 years + a longer life for your fabrics.
No — a heat-pump dryer compressor should run quietly. A loud noise is a sign of a problem; call a technician immediately.
Yes — but a heat-pump dryer uses R-290 (propane) or R-134a depending on the model. Specialized diagnosis is essential.
10-15 years with preventive maintenance. Longer than a condenser because it runs at lower heat.
Yes — full service for Bosch Heat Pump Series 6/8, Miele Heat Pump, and LG Heat Pump.
On-site diagnosis, clear pricing before any work, and a 6-month written warranty.