What Hob Zone Weak means on your Asko range (asko hob zone weak heat)
This is a symptom, not a decoded Asko code — a hob zone that heats but noticeably underperforms the others is different from a dead zone, and Asko’s general problem-solving guidance does not separate the two into distinct diagnostic paths, so the distinction matters mainly for the technician doing the testing. Coils degrade unevenly over years of use, and switch contacts that are pitted rather than fully open can still pass some current while limiting output. On imported cookers this can also simply be a mismatch between the pan base and the zone size, so ruling out cookware first saves an unnecessary service call.

Symptoms
Line the points below up against your Asko range to be confident this is the problem you are dealing with and not a similar one. A range can display a single symptom or several at once, whether they build slowly or appear abruptly after a surge, a spill, or recent installation and testing.
- Water on that zone takes noticeably longer to reach a boil than on other zones
- The zone eventually reaches full heat but far more slowly than expected
- A slight flicker or dimming is sometimes visible on an indicator light for that zone
- Switching the pan to another zone shows a clear speed difference
Common causes
Several separate problems can leave your Asko range showing these symptoms, so the causes below are ordered from the most to the least likely. Working through them in that order on your range tells a quick owner-level check apart from a problem that needs an experienced technician and the right Asko parts.
- Partially degraded heating coil — internal resistance has increased so the coil draws less current than designed
- Pitted switch contacts — the selector is passing reduced current instead of a clean full connection
- Undersized or warped pan base — poor pan-to-glass contact reduces heat transfer regardless of the hob itself
- Fluctuating household voltage — a weak circuit feeding the cooker limits every zone slightly, but is most noticeable on the already-marginal one
Troubleshooting steps you can try
Before you call for service, try each step on your Asko range in turn and watch how it responds. If a step on the range takes you near mains wiring, gas, a hot oven cavity, water, or a sealed component, stop and pass it to a qualified technician.
- Test the same flat-bottomed pan on the slow zone and a normal zone side by side.
- Confirm the pan base is not warped by checking it sits flat on a countertop.
- Check that the zone is set to its highest position and not accidentally limited.
- Note whether the slowness is constant or only happens when other appliances run on the same circuit.
Parts a technician may replace
A technician may inspect, test, or replace the heating coil, zone switch contacts, and wiring harness on your Asko range once the cause is clear. Confirming which of these has actually failed on the range before ordering keeps the repair tight, and the replacement is matched by model, serial, and Art. No. for an exact fit.
When to call a technician
A hob zone that remains consistently weaker after a like-for-like pan test needs an experienced technician to measure that zone’s coil resistance and inspect its switch contacts on the Asko cooker. A Low-severity rating means no emergency for your Asko range, but Hob Zone Weak reappearing on the range after the checks above should be confirmed by a technician before anything is replaced. We handle your Asko range as an independent service with no affiliation to Asko, Gorenje, or Hisense, working only with experienced technicians and genuine OEM or trusted-supplier parts, and we back the labor on your range with a 30-day warranty. Read the model, serial, and Art. No. from your Asko range when you book, because matching the exact part for the range beforehand is how Hob Zone Weak gets resolved in the fewest visits.
Related help and Asko resources
If your Asko range keeps showing Hob Zone Weak after everything above, book Asko range repair, explore our library of range error-code guides, use our step-by-step repair guides, schedule service directly, or see whether we cover you on our locations page. Manufacturer documentation and specifications for your Asko range are hosted at global.asko.com.