We service Thermador cooking equipment and refrigeration — professional ranges, gas and induction cooktops, wall and steam ovens, dishwashers, refrigeration columns and ventilation.
Service call $99. Repair price quoted on site.
Honey Appliance Repair is an independent appliance repair service. We are not affiliated with, authorized or endorsed by Thermador or BSH Home Appliances Corporation. All brand names and logos are the property of their respective owners.
Thermador sits mostly on the cooking side of the kitchen, and cooking equipment fails differently from refrigeration. A professional range combines a gas or induction surface, one or two ovens, and the control electronics for both in a single chassis, and a fault in one section frequently presents as a symptom in another — an oven that will not hold temperature can trace back to a shared control board rather than to its own element.
The burner design is the second difference. Thermador burners are built around a high-output pattern with a genuinely low simmer setting, which means more valve and igniter hardware per burner than a conventional cooktop has. More hardware means more places for a “burner will not light” complaint to originate, and it means the diagnosis is done burner by burner rather than for the cooktop as a whole.
Third, installation. Ranges of 48 and 60 inches, refrigeration columns, and wall ovens set into tall cabinet runs all have to be released from the surrounding millwork before the back of the appliance is reachable. On the refrigeration side, columns are separate appliances rather than compartments of one, so a warm freezer column and a working refrigerator column next to it are two independent systems, not an airflow problem.
Dual-fuel and all-gas ranges in 30, 36, 48 and 60 inch widths. Burner ignition, valves, oven elements and shared control boards.
Range & Stove Repair →Sealed-burner surfaces with high-output and low-simmer settings. Clicking igniters, burners that will not hold a flame, uneven simmer.
Cooktop Repair →Zones dropping out under load, surfaces reporting a fault with no pan present, and cooling-fan behavior. Glass and control modules.
Cooktop Repair →Single and double wall ovens plus steam and combination units. Elements, sensors, door latches and steam water circuits.
Oven Repair →Fully integrated units behind custom panels. Drain and circulation pumps, inlet valves, door seals and control faults.
Dishwasher Repair →Separate refrigerator, freezer and wine columns behind flush panels. Each is its own sealed system with its own controls.
Refrigerator Repair →High-CFM hoods sized for professional ranges, plus downdraft systems. Blower motors, speed controls and lighting.
Range Hood Repair →Dual-zone wine storage holding a narrow temperature band, where a fault shows as a few degrees of drift rather than as warm contents.
Wine Cooler Repair →Units set into tall cabinet runs, including combination microwave and convection models.
Microwave Repair →Series names carry their own search demand: a query naming a collection and a symptom should land here rather than on the generic cooking page.
Thermador organizes its current range into two collections — the Professional Collection and the Masterpiece Collection — rather than a long list of series names. Below is how that maps onto the equipment we are actually called out to, using the product categories as the manufacturer lists them.
| Collection or category | Equipment | What it means for a repair |
|---|---|---|
| Professional Collection | Ranges in 30, 36, 48 and 60 inch widths, dual-fuel ranges, rangetops | Gas cooking with the Star Burner layout. Ignition complaints dominate: a burner that clicks without lighting is far more often a fouled or damp igniter than a gas fault. The 48 and 60 inch units also weigh enough that pulling the range out is part of planning the job, not an afterthought. |
| Masterpiece Collection | Wall ovens, cooktops, dishwashers, and the trim that ties them together | More electronics and touch control than the Professional line, so control and interface faults appear alongside mechanical ones. This is the collection where a code on the display is usually the fastest route to the answer. |
| Wall ovens | Single, double and triple configurations, plus steam, speed and microwave ovens | Door latch assemblies, temperature sensing and heating element circuits account for most calls. Triple-oven and steam configurations pack more into the same cabinet opening, which makes access, not diagnosis, the longer half of the job. |
| Cooktops and rangetops | Gas cooktops, induction cooktops, rangetops | Gas units bring ignition and burner faults; induction units bring cookware detection, overheating and supply-voltage faults, which are a different diagnostic path entirely. |
| Dishwashers | Custom panel-ready and stainless | These share a control platform with the wider BSH group and report E-codes rather than the F-codes used by the ranges. Drainage and leak-protection faults are the common pair. |
| Refrigeration | Built-in refrigeration, including column configurations | Columns are installed as separate refrigerator and freezer units behind custom panels, so one half failing while the other runs normally is expected behavior rather than a clue. |
| Warming drawers and coffee machines | Warming drawers, built-in coffee machines | Lower call volume. On coffee machines the faults concentrate in reservoir sensing, the pump, and scale in the heating circuit. |
Collection and category names verified against the manufacturer’s catalog at thermador.com, 8 September 2026. Names from earlier catalogs that Thermador no longer lists are deliberately not used here.
Phrased the way the complaint actually arrives, rather than as “the oven is not heating” — which on this equipment covers four unrelated faults.
A single-burner fault is almost never the cooktop. We test that burner's igniter and spark path, check the valve and the burner cap seating, and look for spillage in the igniter well before touching the module that serves all of them.
We check: igniter and spark electrode, gas valve, burner cap seating, spark moduleThe low end of the range is the setting people buy this equipment for, and it depends on the valve cycling correctly rather than on burner output. We measure behavior at the lowest setting rather than accepting that the burner “works”.
We check: burner valve, orifice sizing, gas pressure, simmer controlOn a combined range the two ovens and the surface can share control hardware, so we establish whether the fault follows one cavity or both before condemning an element or a sensor.
We check: oven sensor, element, relay board, shared control boardInduction faults are usually thermal or detection-related rather than a dead zone. We check the cooling airflow path and fan first, then the generator module for that zone, then pan detection.
We check: cooling fan and airflow, generator module, pan detection, control glassThese are separate appliances behind matching panels, not two halves of one unit. A warm column means that column's own sealed system, evaporator fan or controls — and the working neighbor tells us nothing about it.
We check: compressor and sealed system, evaporator fan, sensors, controlsFully integrated units hide their controls behind a custom panel, so the first diagnostic step is releasing the machine without marking the millwork. Then drain pump, filter and check-valve in order.
We check: drain pump, filter assembly, drain hose and check valve, control boardHigh-CFM ventilation over a professional range depends on the duct as much as the blower. A hood that sounds right but clears nothing is usually a duct or damper problem, not a motor.
We check: duct run and damper, blower wheel, filters, speed controlSteam units add a water circuit to an otherwise conventional oven, and that circuit is where most of their faults live: reservoir sensing, pump, and scale in the generator.
We check: water reservoir sensing, pump, steam generator, descaling stateCodes below are from the Thermador Use and Care Manual for the professional range series, not from memory or from other repair sites.
One thing to check before you read the table. Thermador does not use a single code scheme across the whole range. Professional gas and dual-fuel ranges report F-codes, which is what this table covers. Wall ovens and dishwashers use E-codes from the wider BSH control platform, and the same number means different things on the two systems. Match the scheme to the appliance before acting on a code.
| Code | What it means | What we do |
|---|---|---|
F31 | Oven temperature sensor failure. | Sensor resistance measured cold and at temperature, then compared with the control’s reading. Replaced if it is out of specification, and the oven recalibrated afterwards. |
F33 | Warming drawer sensor failure, reported while the drawer is active. | Same approach on the drawer circuit. Affects the drawer only, so the oven stays usable in the meantime. |
F41 | Motorized latch will not lock when it should be locked. | Latch mechanism and its switches checked for obstruction and alignment before any part is replaced. Self-clean is unavailable until it is fixed. |
F43 | Motorized latch will not unlock. | Treated as urgent, since the oven door is held shut. The latch assembly is released mechanically, then repaired or replaced. |
F45 | Latch reporting locked and unlocked at once. | A switch fault rather than a mechanism fault. Switches tested, latch assembly replaced if either has stuck. |
F111 | Runaway oven temperature: 585 °F with the latch unlocked. | Safety fault. Power is removed first. Usually a relay on the control board stuck closed with an element heating continuously. The display shows CONTACT SERVICE, and if the temperature keeps climbing the latch locks at 600 °F. |
F113 | Runaway oven temperature: 950 °F with the latch locked, during clean. | Same class of fault during self-clean. Same response: isolate power, then find what is heating without being told to. |
F121 | Stuck key in the membrane switch layer. | Keypad tested key by key. The membrane panel is the part that gets replaced; the control board is usually fine. |
F125 | Cancel key circuit problem. | Same panel, single circuit. Confirmed before ordering, since the symptom overlaps with F121. |
F141 | Slave micro not functioning. | An internal control fault. We verify it is not power-related first, because a brownout can present the same way. |
F151 | EEPROM failure or communication circuit failure while a cook or clean program is set. | Memory or the link between boards. Diagnosed before replacement, as a reconfiguration sometimes clears it. |
F153 | User interface too hot. | Points at ventilation rather than electronics: cooling fan operation and airflow around the control are checked first. |
F154 | Power board too hot. | Same line of investigation on the power board, including the cooling path and installation clearances. |
F155 | Cook profile corrupted in EEPROM. | Program data rather than hardware. Reconfigured, and if the fault returns the board is replaced. |
F170 | Power failure detected. | Often incidental after an outage. We check the supply and clear it, and only investigate further if it repeats. |
F190 | Power over-voltage at power on. | Measured at the outlet. This one can be the house rather than the range, and replacing parts without checking supply wastes your money. |
Source. Thermador Use and Care Manual for the PRG30 / PRG36 / PRG48 and PDR30 / PDR36 / PDR48 professional ranges, sections Range Error Codes and Range Error Codes – Additional Information (consulted 8 September 2026). Codes and trigger conditions are quoted from the manual; the response column is our own procedure. Before launch each code should be re-checked against the original PDF on thermador.com for your exact model, since the tables differ between generations.
On the cooking side the parts we replace most often are igniters and spark electrodes, burner valves and caps, oven temperature sensors and elements, door latches and hinges, relay and control boards, and hood blower motors and speed controls. On refrigeration: evaporator and condenser fan motors, door gaskets, sensors and control boards. Dishwashers: drain and circulation pumps, inlet valves and door seals.
Igniters, sensors, gaskets and common valves for widely used models travel on the truck. Control boards, glass surfaces, induction generator modules and cosmetic panels are ordered per model, which is why we quote the job before ordering rather than after.
We install manufacturer parts on this brand as a rule. Aftermarket control boards for built-in cooking equipment are a false economy on an appliance that will stay in the kitchen for another decade.
Availability is checked while the technician is still at your home, so the expected date comes with the quote rather than after it. On this brand the parts worth asking about early are induction modules and glass cooktop surfaces, where the model number decides everything and a discontinued surface can end the conversation.
Professional ranges store a numbered fault. Reading it first tells you whether the problem is the sensor, the relay board or the wiring between them, which are three different repairs.
Cooktops get tested one burner at a time, including the low simmer setting. That is the setting this equipment is bought for and the one a generic check misses.
Igniters, sensors, gaskets and common valves for widely used models travel on the truck. Boards, glass surfaces and induction modules are ordered per model, with availability checked before you agree to anything.
Parts we install are covered for three months, labor for 30 days. Manufacturer part warranties run alongside ours.
Model numbers are mandatory here: a query naming a model and a symptom is low volume and high intent, and these cards are the only thing on the site that answers it.
“Star burner clicks but won't catch.”
Igniter was damp and the burner port ring partly blocked with spillover. Burner assembly cleaned, electrode dried and gap set, and ignition confirmed on every burner from cold. No parts needed, which is the usual outcome on this complaint.
“Star burner clicks but won't catch.”
Motorized latch had jammed part way, and the control had latched a door-latch fault as a result. Latch assembly replaced, door alignment checked, and the lock cycled several times through a self-clean start to confirm it locked and released cleanly.
“Star burner clicks but won't catch.”
Drain restriction at the filter and sump, with a partly kinked drain hose behind the cabinet. Sump cleared, hose rerouted with a proper high loop, and the drain pump tested under load. Ran a full cycle to confirm it emptied and finished.
To check your own model before calling, start with the manufacturer. Links to commercial
sites carry rel="nofollow".
Professional cooking equipment concentrates in the same communities as built-in refrigeration, which is where most of this work sits.
No. We are an independent appliance repair company and we are not affiliated with, authorized or endorsed by Thermador or BSH Home Appliances Corporation. We service Thermador equipment and install manufacturer parts, but if your appliance is still covered by the factory warranty, work by an independent company may affect that coverage — check with Thermador first.
Usually, yes. Igniters, valves, sensors, elements and door hardware are routine parts on a chassis that is built to be serviced, and a 48-inch professional range is not something you replace over one failed burner. The case for replacement is a discontinued board with no equivalent, or damage to the chassis itself.
Yes, as a rule on this brand. Aftermarket control boards for built-in cooking equipment are a false economy on an appliance that will stay in the kitchen for another decade. Igniters, sensors, gaskets and common valves travel on the truck; the rest are ordered per model.
Common parts are on the truck, so those jobs finish on the first visit. Control boards, glass surfaces and induction modules are ordered, and we quote the work before ordering anything.
Thermador. While the factory warranty is active, warranty work should go through the manufacturer's own service channel; having an independent company open the appliance can affect that coverage. Once it has expired, our 3-month parts and 30-day labor warranty applies to what we install.
Yes, burner by burner. A single burner that clicks without lighting while the others work normally is that burner's igniter, valve or cap seating — not the cooktop. The low simmer setting gets tested on its own, because that is the setting this equipment is bought for and the one a generic “burner works” check misses. Where the fault turns out to be in the gas supply rather than the appliance — the line, the shut-off, the regulator upstream of the unit — that is a licensed plumber’s job, and we will tell you so.
Yes. Columns are separate appliances behind matching panels rather than compartments of one unit, so a warm column is diagnosed on its own sealed system, evaporator fan and controls. The working column next to it tells us nothing about the faulty one, which is the most common misdiagnosis on this equipment.
The most-cited primary figures come from the NAHB Study of Life Expectancy of Home Components (2007), which puts a gas range at 15 years, an electric range at 13, a range hood at 14 and a dishwasher at 9. Read those as reference points, not verdicts: the study is old, the data behind it is from 2005, and it was measured for first-owner use on mass-market equipment. Professional ranges are built to a different standard and, more to the point, are designed to be serviced rather than replaced. Ventilation clearances and regular cleaning of burner hardware and condenser coils make more difference to how long yours lasts than the badge does.