Failure mode · Generator Board · Cookware · F-codes · Ghost Touches

Induction Cooktop Not Working

Name: Same Day Appliance Repair
Telephone: (424) 325-0520
Price range: $$

Residential induction cooktops across LA, OC, Ventura, Riverside. Generator board, cookware compatibility, F-codes, capacitive touch ageing. $89 diagnostic, waived with repair. (424) 325-0520

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Our Branches

8 service territories across Southern California

Pasadena — (626) 376-4458

West Hollywood — (323) 870-4790

Beverly Hills — (424) 248-1199

Los Angeles — (424) 325-0520

Thousand Oaks — (424) 208-0228

Irvine — (213) 401-9019

Rancho Cucamonga — (909) 457-1030

Temecula — (951) 577-3877

Induction Cooktop Repair

Southern California

🏅 BHGS Licensed #A49573

🛡️ Fully Insured

⚡ Same Day Available

🔩 OEM Parts on Truck

💬 $89 Diagnostic — Waived With Repair

01 · Customer-side check before booking

Magnet test. About 25% of these calls are cookware, not cooktop.

Before anything else, take a kitchen magnet and stick it to the bottom of the pan you're trying to use. If it sticks firmly, the pan is induction-compatible (the cooktop is fine). If it doesn't stick, the pan is the problem (aluminum, copper, glass, ceramic, non-magnetic stainless will not work on induction). Stainless with a magnetic core works, stainless without one doesn't. The label on the pan often says "induction-compatible" but the magnet test is the only reliable verification.

If the magnet test passes (pan is good) and the cooktop still won't work, the failure tree branches into generator board, capacitive touch panel, or coil. We diagnose all three at the visit.

For broader induction architecture coverage (IGBT inverter, F-code reference, LA's gas-to-induction conversion trend, brand selection), see our pillar at induction cooktop repair. This page is failure-mode diagnostics; that page is technology and brand depth.

BHGS #A49573, EPA 608 Universal certified (#1346255700410). Phones answered 24/7.

02 · Generator board failure (year 4 to 8)

Most expensive component, most common parts replacement.

The generator board (also called inverter or IGBT module) is the electronics that drives each induction coil. It takes AC line power and produces the high-frequency alternating current (typically 20 to 60 kHz) that creates the magnetic field heating the pan. Failure mode: zone goes dead while other zones work. Generator boards usually fail individually, not in pairs.

Multi-zone cooktops have multiple generator boards. Some architectures (Bosch HEI, Wolf CI) have one board per zone. Others (Samsung NZ slide-in induction, some GE Profile) pair zones under shared boards. We isolate the failed board at the diagnostic.

Replacement $600 to $1,200 per board, varies by brand and zone wattage (3,200W and 3,700W zones use beefier boards). Pro-style brands (Wolf, Thermador, Miele) at the upper end.

03 · Bosch HEI ghost touches and phantom zone activation

Capacitive touch panel ageing, year 5 to 7. Don't replace the generator board first.

Specific to Bosch HEI8054 and HEI8054U slide-in induction (and similar Bosch capacitive-touch models), at year 5 to 7 the touch-sensing layer under the front-edge glass develops sensitivity drift. Symptoms: zones activate spontaneously without anyone touching the panel, settings change unexpectedly mid-cook, zones don't respond when actually touched, or the cooktop reads phantom finger contact and locks out other inputs.

This is NOT a generator board failure. Many shops misdiagnose ghost-touch as generator board ($720+) and replace the wrong part. The correct fix is the touch-panel glass assembly, which contains the capacitive sensing layer. Replacement $340 to $540, including the labor to lift and reseat the glass.

We test the touch panel response curve before condemning the generator board. If the touch input is erratic but the actual induction zones produce normal magnetic field output when triggered manually (we use a test cookware piece), the touch panel is the failure, not the generator. Saves $400+ in misdiagnosis on every Bosch HEI ghost-touch call we get right.

04 · F-codes and E-codes

Brand-specific. Decoded at diagnostic.

Bosch: F47 = coil temperature sensor overheat (most common Bosch fault). F25, F26 = power supply faults. Customer can sometimes reset by power-cycling at the breaker for 30 minutes.
Wolf: E1, E2 = coil temperature, often clears after cooldown. E5, E6 = generator board fault, requires service.
Thermador: Similar to Wolf in fault numbering (Thermador and Wolf share Sub-Zero Group platform engineering on some models).
Miele: F-codes with two-digit suffixes (F18, F62, etc.). Miele service manuals are detailed; we have access through Miele technical channel.
Samsung NZ: SE = stuck key on touch panel. E0 = under-voltage. Samsung NZ slide-in induction has its own code table.
GE Profile / GE Café: F-codes through their Connected app, clearer interpretation than older code-only displays.

05 · Recent jobs

Real diagnostic stories from the last few weeks.

Composite examples; model numbers, ages, and prices are accurate to typical scope.

West Hollywood · Bosch HEI8054U slide-in induction range, cooktop side, 5 years old

Customer reported "induction not working, zones don't respond". Symptoms also included occasional spontaneous zone activation. Diagnosed: capacitive touch panel ageing (Bosch HEI year-5 typical), NOT generator board. Replaced touch-panel glass assembly. All zones responsive to touch, spontaneous activations cleared. Total: $89 plus $440 part plus 1.5 hours = $580. Customer had been quoted $1,200 generator board by another shop; we saved them $620.

Beverly Hills · Wolf CI365C induction cooktop, 6 years old

Display shows F47-equivalent overheat code on right rear zone. Diagnosed: coil temperature sensor degraded (rare but happens, especially on heaviest-use zone). Replaced sensor, ran test pulldowns at three power levels. Total: $89 plus $230 sensor plus 50 minutes = $310.

Pacific Palisades · Miele KM 5773 induction cooktop, year 4

Owner reported "left front zone not heating new pan". Magnet test: customer's new pan was non-magnetic stainless (decorative imported brand, not induction-compatible). Cooktop tested fine on the customer's other (magnetic) pan. Total: $89 diagnostic only. Customer returned the new pan to the retailer.

Calabasas · Samsung NZ34K7600 slide-in induction, 7 years old

Two adjacent rear zones dead simultaneously. Diagnosed: shared generator board for the rear zone pair failed (Samsung NZ architecture pairs rear zones under one board). Replaced board, tested both zones to full power. Total: $89 plus $1,180 board plus 2 hours = $1,400.

Marina del Rey · Thermador CIT304 induction cooktop, year 5

Touch interface entire panel section non-responsive on the right side. Diagnosed: control board capacitive sensor section failed. Replaced control board. Total: $89 plus $620 board plus 1 hour = $640.

06 · Honest opinion

Year-9+ generator board failure can trigger a replace conversation.

Math we walk through with customers when a generator board fails on a year-9+ induction cooktop: $1,200 part plus $300 labor on a unit originally $2,000 to $3,000 mid-tier. Other components likely also at end-of-life (touch panel year 5-7, coil temperature sensors, glass surface scratched). At year 9+ on mid-tier, replacement often wins.

Same generator board failure on a year-9 premium induction (Bosch HEI Benchmark, Wolf CI, Miele KM, Thermador CIT, $4,000+ original): repair preserves the investment, the rest of the unit has 8 to 12 more years of life designed in.

Bosch HEI ghost-touch warning: most appliance shops jump to generator board on Bosch ghost touches. We test touch panel first. Saves customers $400+ on every Bosch HEI year-5 to year-7 ghost-touch call we get right.

07 · Pricing

What induction-not-working repair actually costs.

Service	Cost
Diagnostic visit (includes magnet/cookware test)	$89, waived with repair
Touch-panel glass replacement (Bosch HEI ghost-touch fix)	$340 to $540
Coil temperature sensor	$200 to $340
Generator board (mid-tier, per zone)	$600 to $980
Generator board (pro-style Wolf/Thermador/Miele)	$880 to $1,200
Multi-zone shared generator board	$980 to $1,400
Control board / touch interface	$440 to $720
Induction coil replacement (rare)	$400 to $680
Multi-component repair	$880 to $1,500
Warranty	90 days parts and labor

Residential $89 diagnostic, applied toward repair. About 25% of these calls resolve at the diagnostic with cookware-compatibility verification, no parts.

08 · Why us

Six reasons.

Bosch HEI ghost-touch expertise. Test touch panel before condemning the generator board. Saves customers $400+ on misdiagnosis.
Magnet-test cookware verification. Customer-side check rules out 25% of "induction not working" calls before parts.
F-code reference. Bosch, Wolf, Thermador, Miele, Samsung NZ, GE Profile. Decode before replacement.
Generator board isolation. Multi-zone cooktops have multiple boards; we identify the failed one without replacing all.
BHGS #A49573 plus EPA 608 Universal certified (#1346255700410). Verifiable.
Same-day across LA, OC, Ventura. 24/7 phones, no emergency surcharge.

Heavy cross-link: induction cooktop repair pillar for full architecture, brand selection, gas-to-induction conversion guidance. Sister sub-services: burner not igniting (gas), electric element failure, surface cracked. Parent: cooktop repair. Credentials: BHGS license, EPA 608.

09 · FAQ

Induction cooktop not working, common questions.

My induction cooktop won't turn on / zone is dead. First step?

Magnet test on your cookware. Stick a magnet to the bottom of the pan you're trying to use. If it sticks firmly, the pan is induction-compatible. If it doesn't stick (aluminum, copper, glass, ceramic, non-magnetic stainless), the cooktop is fine, the pan is the problem. About 25% of 'induction not working' calls are cookware compatibility, no service call needed beyond diagnostic confirmation.

What's a generator board and why is it expensive?

The generator board (sometimes called inverter or IGBT module) is the electronics that drives the induction coil. It converts AC line power into the high-frequency alternating current that creates the magnetic field. Multi-zone cooktops have multiple generator boards (one per zone or one per pair of zones depending on model). When one fails, that zone goes dead while others work. Replacement $600 to $1,200 per board.

My Bosch HEI cooktop has 'phantom zones' or ghost touches. Generator board?

Probably not the generator board, even though that's where many shops jump first. Bosch HEI8054 and HEI8054U capacitive touch panels age at year 5 to 7, the touch-sensing layer under the glass develops sensitivity drift and reports phantom finger contact. Symptom: zones activate spontaneously, settings change without input, or zones don't respond when actually touched. Fix is touch-panel glass replacement, $340 to $540, much less than generator-board replacement at $720+. We test the touch panel response curve before condemning the generator board. Saves customers $400+ in misdiagnosis.

My induction shows F47, E1, E2, F1. What does it mean?

Brand-specific. Bosch: F47 typically indicates overheat at the coil temperature sensor. Wolf: E1 / E2 are coil temperature faults, often resolved by letting the unit cool 30 minutes plus power-cycle. Thermador and Miele use similar codes. F1 is generic 'general fault' across multiple brands. We decode at the diagnostic, decision tree drives parts.

How does this page differ from /services/induction-cooktop-repair/?

This page handles failure-mode diagnostics: what's wrong, what to test, what it costs to repair. The induction-cooktop-repair pillar covers the broader picture: induction architecture (IGBT inverter), F-code reference tables across brands, LA's gas-to-induction conversion trend, brand selection guidance for replacement. If you're researching the technology, start there. If you're trying to fix a broken induction cooktop, this page is the right entry. <a href="/services/induction-cooktop-repair/">Induction cooktop repair pillar</a>.

Year-9 induction cooktop, generator board failed, repair or replace?

Honest math: $1,200 part plus $300 labor on a year-9 cooktop that originally cost $2,000 to $3,000. If other zones are still working and the unit was a $4,000+ premium model (Bosch HEI Benchmark, Wolf, Miele KM, Thermador CIT), repair preserves the investment. If the unit is mid-tier ($1,500 to $2,500 original) and showing other signs of age (control interface aging, glass scratching), replacement starts to win. We give you the math at the diagnostic.

What's your warranty?

90 days parts and labor on every repair. BHGS #A49573, EPA 608 Universal certified (#1346255700410), BBB A+ accredited.

Induction Cooktop Not Working? Call Today.

$89 residential diagnostic, waived with repair. Same-day across LA, OC, Ventura. About 25% of these calls resolve with cookware verification, no parts. BHGS #A49573, EPA 608 Universal certified (#1346255700410).

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