LG Cooktop Code F69: Sous Vide Heating Problem
On LG induction and radiant cooktops, and ranges with a cooktop section, that have a sous vide zone, F69 means the sous vide function is not heating the way it should. The control expected the water…
- Code
- F69
- Appliance
- Cooktop
- Brand
- LG
- Warranty
- 30-day workmanship
What F69 means
On LG induction and radiant cooktops, and ranges with a cooktop section, that have a sous vide zone, F69 means the sous vide function is not heating the way it should. The control expected the water to warm up and sees that it is not following the set temperature. Cooking in that zone stops and the code stays on the display. Because the problem is with heating rather than with a single reading, the cause can sit in the heating circuit or in the sensing that checks it, which is why a hands-on test is needed.
Common causes of F69
- Sous vide zone heating circuit
- Temperature sensing used to confirm the zone is heating
- Control board output to the zone
- Pan or container that does not suit the zone
1. Turn the zone off and take the pot or pouch away. 2. Check that the container sits flat and centered on the sous vide zone. 3. Let everything cool, then switch the cooktop breaker off for 30 seconds and back on. 4. Try a short sous vide cook with plenty of water. 5. If F69 comes back, stop using the zone and book a visit.
- A container problem looks like a heating problem, and only a test cook tells the two apart.
- We check whether the zone actually heats, then whether the sensing agrees with it.
- We run a full sous vide cycle at the end to prove the zone holds its temperature.
Other Cooktop codes
How is F69 different from F62?
F62 points to the sous vide temperature sensor. F69 says the zone is not heating properly. They show up on the same cooktops, but they send us to different parts of the circuit when we test.
Could my pot be the reason for F69?
It can matter. A pot that rocks, sits off center or does not suit the zone may heat poorly. Try a flat container with enough water first, and if F69 repeats, the cooktop needs testing.
Do I need to leave the breaker off longer?
Thirty seconds is the reset to try. Waiting longer does not add anything. If the code returns after a reset, the condition is real and we should test the zone rather than keep cycling the breaker.
Still seeing F69?
A technician diagnoses it on site and gives you the price in writing before any work starts.