Electrolux T4530 Service Manual page 67

E 28 - Input temperature oscillating
Error description
Internal temperature fluctuating.
Warning: the heat has been on/off an unusual amount due to the intake air temperature
having been too high.
Check the air flow through the machine.
Only applies to Clean Room dryers:
Check that the prefilter and filter in the machine are not clogged. Replace or clean the filter
Troubleshooting
67