Bosch Exxcel Washer Dryer No Heat On Dryer

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

Bosch Exxcel WVD2452S washer-dryer dries with no heat and stops early

The problem

On a Bosch Exxcel WVD2452S washer-dryer, the drying programme appeared to run but produced no heat and stopped after about 15-16 minutes. The question was whether there was a resettable thermostat/thermal trip, or whether the fault was the thermostat or heater element.

Likely cause

The accepted reply says most washer-dryers do not have a resettable thermal overload cut-out and usually use a one-shot cut-out that must be replaced if open circuit. It also states that if a cut-out has operated, an underlying overheating or condenser-cooling fault should be investigated. Suggested likely causes were an overloaded load, a faulty condenser water solenoid, a blockage in the condenser chamber stopping water flow/drainage, or blocked filters. The exact failed part was not confirmed.

What fixed it

No confirmed repair was posted. The accepted advice was that a reset is usually not available on this type, and that if a thermal cut-out has failed it would normally need replacement, while also diagnosing the cause of overheating or loss of condenser cooling. Further diagnosis should be carried out by a suitably qualified appliance engineer.

Checks to try

• Top and rear cover were removed to look for a reset switch, but none was found
• Drying cycle ran without heat and ended after about 15-16 minutes
• Check for overloaded load
• Check condenser water solenoid operation
• Check for blockage in the condenser chamber affecting water flow/drainage
• Check for blocked filters