Beko wdix8543100 Not drying clothes

This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.

Beko WDIX8543100 washer dryer runs fan but produces no drying heat

The problem

The Beko WDIX8543100 washer dryer would wash normally and heat water on wash cycles, but in drying mode the fan could be heard running with no heat generated. The original poster had already replaced the complete drying heating box/unit, including the element, fan and thermal cut-outs/thermostats, without curing the fault.

Likely cause

Most strongly supported diagnosis was a fault in the dryer heating safety/control circuit rather than the main heating box itself. The accepted reply said washer dryers with no drying heat are commonly caused by thermostats, thermal cut-outs or the element, and advised checking whether there is another thermal cut-out elsewhere in the wiring. A further reply suggested some models also have an exhaust thermostat monitoring expelled hot air.

What fixed it

Do not replace further parts without diagnosis. Trace the dryer heater wiring and check for any additional thermal cut-out or exhaust thermostat not mounted on the main heating box. The discussion did not confirm a final repair.

Checks to try

• Confirmed wash cycle water heating was normal
• Confirmed drying fan runs but no heat is produced
• Complete drying heating box/unit had been replaced
• Advised to follow the heater wires to look for another TOC
• Suggested checking for an exhaust thermostat/stat

Parts or tools mentioned

• heating box/unit
• heating element
• fan
• TOCs
• thermostats
• control board
• service manual or diagram