What F35 (Heat Dry Temperature Issue) Means
F35, also specific to Dynamic Heat Dry models, displays when the temperature of Heat Dry components can't be measured, per LG's dishwasher Help Library article. LG names either the heat dry heater or its temperature sensor as the likely fault, and states this needs inspection from a service technician.
Common Causes of F35 (Heat Dry Temperature Issue)
- Heat Dry heater has failed
- Heat Dry temperature sensor has failed
🔧 One Safe Check You Can Try
There's no owner-level fix documented for F35 - request service, since distinguishing a heater fault from a sensor fault needs a technician's diagnostic tools.
⚠ Why You Shouldn't Go Further Than That
- LG goes straight to requesting service for this code, without an interim homeowner step, since the affected components are inside the Heat Dry assembly.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.