Error code
Cooktop: Hot surface indicator
LG cooktop — reported by blinking lights rather than by a code. This is the indicator that stops people putting a hand on a radiant top that looks cold. LG's own list says plainly that it is not an error code.
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What we can confirm
Signal H5, from the manufacturer's own documentation
This code has no number, because this equipment has no display to put one on. The appliance signals it instead — an alarm, a symbol or a pattern of lights — and what it means is recorded in the documentation that ships with it.
The signal
H5
This is the indicator that stops people putting a hand on a radiant top that looks cold. LG's own list says plainly that it is not an error code. It clears itself as the glass cools, usually within twenty minutes of the last zone going off. The only version worth acting on is an H5 that stays lit on a surface that is cold to the touch, which means the sensor rather than the surface.
or call (305) 419-0291
What it narrows down to
Not an error — the glass is above 150°F and the cooktop is saying so
Diagnostic
From $95, credited to the repair
On the same appliance
What else belongs to the cooktops
On this make a code belongs to the appliance rather than to a product line. These are the other conditions this machine can display, and the models that can show this one — a display often has more than one thing to say, and the model number decides what any of it costs to put right.
Other codes this appliance can display
The touch controls are reporting a key that is stuck or wet
An induction zone cannot measure its own temperature
The supply to the appliance was cut while it was working
The same digits mean different things on different equipment. Search the full code list
In more detail
About Cooktop: Hot surface indicator
What the appliance is actually reporting
This is the indicator that stops people putting a hand on a radiant top that looks cold. LG's own list says plainly that it is not an error code. It clears itself as the glass cools, usually within twenty minutes of the last zone going off. The only version worth acting on is an H5 that stays lit on a surface that is cold to the touch, which means the sensor rather than the surface.
The other light combinations that mean this
H5 · HS · H
LG publishes what the indicator lights mean on the washers and dryers that have no numeric display. They are grouped here by what they mean rather than split into near-identical pages, and every pattern the maker names is printed above.
Where this appears, and why not to clear it
On the indicator lights, on a laundry machine with no numeric display. LG publishes what the patterns mean, and on those models the pattern is the entire diagnosis — it disappears the moment the power is cut. Write it down or photograph the panel before switching anything off, and count a full sequence rather than a single flash: the lights also blink to show cycle status, so treat it as an error only if the machine is misbehaving as well.
What to do about it
- Wait for the glass to cool and watch the indicator go out.
- If it is genuinely cold and still showing, cut the breaker for thirty seconds.
- Do not cover the cooktop while this is showing.
- Book it only if it persists on a cold top.
Where this goes next
The job this usually becomes is diagnostic visit, and that page carries a starting figure and the reasons that move it. If it turns out to be nothing — and on this make a real share of these are modes, reminders and settings rather than problems — the visit ends there and you pay the diagnostic and nothing else, or call (305) 419-0291 and describe what the panel is doing before booking anything.
This article is based on:
- Official manufacturer documentation
- Internal repair procedures
- Technician repair history
- Company quality standards