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LG Dishwasher F35 Error Code

Heat dry temperature fault. What it means, which models show it, and how to clear it, easiest fix first.

LGAll LG dishwasher codes

F35
May need a pro

On models with Dynamic Heat Dry, the control cannot measure the temperature of the drying system. The heat dry heater or its temperature sensor is the likely cause.

Compatible models

LG doesn't publish a model list for this code; it appears on LG dishwashers with a digital display. Check your owner's manual.

Also shown as

Dynamic Heat Dry models only.

Difficulty

Try the basic checks, but the usual fix is a technician's job.

Safety first: unplug the dishwasher (or switch off its breaker) before touching filters, hoses or panels. If you smell burning or gas, or see water near the outlet, stop and call a professional.

How to fix LG F35

  1. Reset the power

    Turn the dishwasher off, then switch off its circuit breaker for about 10 seconds and switch it back on. Power the unit up and start a fresh cycle to see whether the code returns.

  2. Note the code and model number

    Write down the exact code, when in the cycle it appeared, and the model and serial numbers from the rating label (usually on the side or top edge of the door or tub). With nothing safe left to check yourself, this lets the technician bring the right part on the first visit.

When to call a technician

If F35 returns after a reset, request service to test the heat dry heater and sensor.

Parts linked to F35

These are the parts most often behind this code. Tap one to see what it does and the signs it is failing.

Order parts by your full model number so they fit.

Frequently asked questions

What does F35 mean on a LG dishwasher?

On models with Dynamic Heat Dry, the control cannot measure the temperature of the drying system. The heat dry heater or its temperature sensor is the likely cause.

Which LG models show the F35 code?

LG doesn't publish a model list for this code; it appears on LG dishwashers with a digital display. Check your owner's manual.

Can I fix LG F35 myself?

Only the basic checks. You can safely try the steps above, but F35 usually points to a part or fault that needs a technician.

What if F35 keeps coming back?

A code that returns after a reset and the checks above usually means a part is wearing out. Note when F35 appears (which cycle, how often) and have your model number ready; it helps a technician bring the right part on the first visit.

Other LG dishwasher codes

Last reviewed 2026-10-19. Codes and steps can vary by model; check your owner's manual.

Sources we checked