Viking, U-Line and Thor repair at your home in Fort Myers and Bonita Springs
Call before 11 AM and we aim to be there the same day.
Viking and U-Line have shared an owner, Composition Brands (formerly Middleby Residential), since February 2026. Thor Kitchen is an unrelated, privately held California company with its own parts, warranty and service line.
SUNTECH is an independent repair company, not affiliated with or endorsed by Viking, U-Line or Thor. Brand names and logos belong to their owners and are used here only to show which brands we repair.
Bonita Springs and Naples area
Where to find the model number
| Brand | Models | Where the model number is |
|---|---|---|
 | 5 Series ranges | Open the door and look under the control panel, or on the left side panel under the left front grate support. |
| VCSB5424 and similar built-in refrigeration | Identification plate behind the top light. | |
| FDWU and VDWU dishwashers | A label on the left side of the tank. | |
| DrawerMicro | Left side of the oven cavity. | |
| Outdoor undercounter refrigerator | Inside the cabinet, upper left. | |
 | R-600a refrigerant units | Serial tag inside the unit. |
 | Pro gas ranges | CSA label in the bottom right-hand corner of the backboard. |
| Dishwashers | The product data plate. |
- 5 Series rangesOpen the door and look under the control panel, or on the left side panel under the left front grate support.
- VCSB5424 and similar built-in refrigerationIdentification plate behind the top light.
- FDWU and VDWU dishwashersA label on the left side of the tank.
- DrawerMicroLeft side of the oven cavity.
- Outdoor undercounter refrigeratorInside the cabinet, upper left.
- R-600a refrigerant unitsSerial tag inside the unit.
- Pro gas rangesCSA label in the bottom right-hand corner of the backboard.
- DishwashersThe product data plate.
How Viking, U-Line and Thor appliances are built and what fails
Salt air and a cover are hard on a Viking outdoor refrigerator. Salt air near the coast attacks the stainless on a Viking outdoor undercounter refrigerator, and Viking’s manual rules out covering the unit, since a cover traps condensation.
A Viking refrigerator after a season away. A Viking refrigerator closed up for months can come back with odor or mold inside, an ice maker that stays empty or a door that no longer seals. Any of these is worth a call.
A Viking dishwasher after a season away. A Viking dishwasher that stood closed through a season can come back with a musty smell, a leak or a fault on the first wash. Call us if it does.
U-Line outdoor units must sit under a roof. U-Line Outdoor and Seamless-collection units are rated 50°F to 100°F and must be installed under a roof; pool chemicals, saltwater and sprinkler spray can discolor the stainless, and the warranty excludes cold damage at 40°F or below.
The Thor refrigerator drawer has a tighter outdoor temperature window. Thor rates the TRF24U drawer for room temperatures of 50°F to about 100°F, so a hot lanai or pool deck can push it past its limit.
5 Series gas ranges with VSH Pro sealed burners, built-in and outdoor undercounter refrigeration, FDWU/VDWU dishwashers, DrawerMicro microwaves
- Oven and range
Every burner is lit electrically, no pilot. 5 Series gas ranges have no open-flame standing pilots — every burner lights electrically, the knob doubles as a gas valve and an electric switch, and a burner that blows out reignites itself.
- Oven and range
Won’t light during a power outage. If the power is out, the electric igniters won’t work, and Viking’s manual says not to try lighting the burners by hand.
- Refrigerator
Single DC compressor and a “maintenance-free” condenser. The VCSB5424 built-in refrigerator runs a single variable-speed DC compressor and a pin-and-tube “Super Clog-Resistant” condenser that Viking calls maintenance-free under normal use; the power switch sits behind the top grille.
- Microwave
Only force the drawer in an emergency. Viking’s DrawerMicro should only be pushed or pulled open by hand in an emergency, such as a power failure.
Undercounter and outdoor refrigeration, Outdoor Series convertible freezers, and the Home and Seamless collections
- Refrigerator
Condenser needs cleaning every six months. U-Line’s guide warns that skipping the six-month condenser cleaning can make the unit malfunction and can void the warranty.
- Refrigerator
Some units run on flammable refrigerant. Newer U-Line units can use R-600a isobutane, a flammable hydrocarbon — sealed-system service calls for matching, like-for-like replacement parts.
Pro-style gas ranges, French-door refrigerators, indoor/outdoor refrigerator drawers, and built-in dishwashers
- Refrigerator
Drawer shuts itself off if left open. On the TRF24U indoor/outdoor refrigerator drawer, the compressor and fans stop automatically once a door has been open more than 60 seconds — normal behavior, not a fault.
- Refrigerator
Six sensor zones in one refrigerator. The TRF3601FD French-door refrigerator has separate sensors for the fridge, freezer, Flex Drawer, defrost and ambient air, plus the ice maker — a fault in one zone does not mean the whole unit is down.
- Dishwasher
Shut off the water on an overflow. If the dishwasher overflows, Thor’s manual says to shut off the main water supply before calling for service.
Viking, U-Line and Thor error codes
| Brand | Code on the display | Models | What it means |
|---|---|---|---|
| Viking | oPn or Shr | Built-in refrigeration (VCSB5424 and similar) | A temperature reading alarm. |
| Viking | POWER (flashing) | Built-in refrigeration | There was a power loss; the high-temperature alarm also sounds if a section runs too warm for two hours straight. |
| Viking | SHOW | Built-in refrigeration | Showroom mode — lights and controls work independently of the refrigeration system, so it can look fine without actually cooling. |
| Viking | E:01 | FDWU and VDWU dishwashers | An overflow or leak; the dishwasher tries to pump the water out. If the code stays on, the dishwasher needs service. |
| Viking | E:02 | FDWU and VDWU dishwashers | The water supply has been cut off. |
| Viking | DEMO ON | DrawerMicro | Demo mode — the oven will not heat on purpose, not a fault. |
| Thor | E1, E2, E3, E4, E5, E7, EH | TRF3601FD French-door refrigerator | A temperature reading fault: E1 fridge, E2 freezer, E3 Flex Drawer, E4/E5 defrost, E7 room, EH humidity. |
| Thor | E6, CA, F4–F6, E0, C9, CC | TRF3601FD French-door refrigerator | A communication fault in the controls (E6, CA) or an ice maker fault (F4–F6, E0, C9, CC). |
| Thor | E1 | HDW2401 dishwasher | The dishwasher is taking too long to fill. |
| Thor | E4 | HDW2401 dishwasher | An overflow — some part of the dishwasher is leaking. |
| Thor | E8 | HDW2401 dishwasher | A water distribution fault. |
| Thor | E9 | HDW2401 dishwasher | A button has been pressed for over 30 seconds. |
| Thor | E1–E4 | TRF24U indoor/outdoor refrigerator drawer | A temperature reading fault; E1 or E2 also shuts the cooling down. |
| Thor | LL / HH | TRF24U indoor/outdoor refrigerator drawer | LL means the drawer has run 60 minutes too cold; HH means it has run about 14°F above the set point for 24 hours. |
See a different code on the display? Note it before you call — it helps us diagnose faster.
Viking, U-Line and Thor safety recalls
Viking — Freestanding 5 Series gas ranges (VGR and VGIC models) made August 10 to December 1, 2021, recalled February 16, 2022. Rigid gas tubing to the bake, broil and griddle burners can separate, risking a gas leak and fire. Stop using the oven and griddle; Viking arranges a free repair through its own service network. The top burners can still be used. The first six digits of the serial number are the build date.
Recall notice on CPSC.gov: Viking, February 16, 2022Viking — Freestanding gas ranges (VGIC306–VGIC536, plus listed VGCC and VGSC serial ranges) sold July 2007 to June 2014, recalled May 21, 2015. Ovens can turn on by themselves; Viking’s recall page attributes it to liquid seeping into the control panel area. Free in-home repair. Check the model and serial number against the ranges Viking lists.
Recall notice on CPSC.gov: Viking, May 21, 2015Viking — DDB200, FDB200, VDB200, DFB450, VDB450, VDB325 and DDB325 dishwashers with date codes before 120110 (before 040111 for the 325 models), recalled August 6, 2015 (expanding an April 2012 recall). The heater’s electrical connector can overheat; reports include 21 fires. Free in-home repair. The ID plate is inside, on the left of the door opening.
Recall notice on CPSC.gov: Viking, August 6, 2015 (expanding an April 2012 recall)Viking — 42- and 48-inch built-in side-by-side refrigerators with in-door dispensers (FDSB5421D, VCSB5421D, FDSB5481D, VCSB5481D) made October 2012 to May 2013, recalled November 19, 2013. Wiring harness connectors can overheat. Free repair. Check the model number against the list above.
Recall notice on CPSC.gov: Viking, November 19, 2013Viking — 36-inch built-in bottom-freezer refrigerators, recalled July 25, 2013 (expanding a 2009 recall). Doors can detach; Viking’s page attributes it to a weld securing the pin to the pivot plate that can break. Free repair. Check the model and production dates against the recalled range.
Recall notice on CPSC.gov: Viking, July 25, 2013 (expanding a 2009 recall)U-Line — Outdoor Series 24-inch convertible freezers, model U-1224FZRSOD-00A, made 2017–2018, recalled October 13, 2022. The freezer can overheat; three fires were reported. Free pickup and a free replacement unit. The rating plate is inside, at the top right.
Recall notice on CPSC.gov: U-Line, October 13, 2022
Viking, U-Line and Thor repair questions
Are you part of the Viking, U-Line or Thor service network?
No. SUNTECH is an independent repair company with no tie to Composition Brands, the owner of Viking and U-Line, or to Thor Kitchen (Thor Group). While a unit is under the maker’s full warranty, that warranty covers repairs only by a service company the maker has approved.
How do I find out how old my Viking appliance is?
The build date is built into the serial number — the first six digits on recalled ranges, and Viking’s own warranty sheet uses that same serial-number date as the warranty start when a later owner has no proof of purchase and the unit was never registered. Read us the model and serial number and we can go from there.
What does the service call cost?
We tell you the fee when you call. If you go ahead with the repair, the service call fee is waived.
What warranty do I get?
3 months on labor for all appliances except high-end. On high-end appliances, parts are covered for 1 year.
How can I pay?
Card, check or cash.
Send a request
Tell us the appliance, the brand and what it is doing.
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If it cannot wait
Call before 11 AM and we aim to be there the same day.
Bonita Springs and Naples area
