Dexter Laundry Equipment: The T-Series Guide for Laundromat Operators

Dexter Laundry sells one vended washer platform, the T-Series, in capacities from 20 lb to 120 lb, plus stack and single dryers to match. Every spec, fault code and programming step is published, but only as a dozen separate PDFs on dexter.com, and three control generations are still running on laundromat floors. This guide puts the whole line in one place: what each model is, which control you have, what the display is telling you, and what a Dexter actually costs.

The T-Series Washer Lineup

Dexter names washers by a series number, not by pounds. T-300 is the 20 lb machine, T-400 the 30 lb, T-600 the 40 lb, T-900 the 60 lb, T-1200 the 80 lb, and T-1800 the 120 lb. Every one is a hard-mount washer that bolts to the slab, which is why concrete thickness appears on every spec sheet. The figures below come from Dexter's C-Series vended spec sheets; the T-1800 line is from the X-Series sheet dated 09/2025.

Model	Capacity	Cylinder	Cabinet H × W × D (in)	Door opening	Water per cycle	Net weight
T-300	20 lb	2.7 cu ft	43 7/8 × 26 × 25	12 1/4 in	15.8 gal	317 lb
T-400	30 lb	4.0 cu ft	48 3/16 × 29 7/8 × 27 3/8	15 1/4 in	23.5 gal	432 lb
T-600	40 lb	6.0 cu ft	49 11/16 × 29 7/8 × 36	15 1/4 in	35.1 gal	558 lb
T-900	60 lb	9.0 cu ft	55 3/8 × 34 3/8 × 38 7/8	19 1/4 in	52.6 gal	964 lb
T-1200	80 lb	11.5 cu ft	57 7/8 × 34 3/8 × 45 3/8	19 1/4 in	67 gal	1,022 lb
T-1800	120 lb	17.4 cu ft	62 3/8 × 41 1/2 × 48 1/4	19 1/4 in	95.6 gal	1,415 lb

Two things in that table matter most. First, Dexter uses only three door openings across the whole vended washer line: 12 1/4 in, 15 1/4 in and 19 1/4 in. Second, the T-400 and T-600 share the same 29 7/8 in width and the same door; the T-600 is 8 5/8 in deeper. The full cylinder, floor-to-door and utility figures for every model, including the Express sizes, are in the Dexter washer size chart from T-300 to T-1200. If you're only deciding between the two most common sizes, the T-300 vs T-600 sizing guide works through the turns-per-day math.

Express vs Standard: 100G or 200G

Every standard T-Series washer extracts at 100 g. The Express versions (T-350, T-450, T-650, T-750, T-950, T-1450) extract at 200 g. A T-400 spins at 532 RPM; a T-450 Express spins at 750 RPM in a cabinet that is the same height and width and 7/8 in deeper. The trade is weight and concrete. The T-450 weighs 526 lb against the T-400's 432 lb. The T-650 Express weighs 744 lb against the T-600's 558 lb and needs an 8 in slab where the T-600 needs 6 in.

The Express machines also use slightly less water on the 30 lb size (22.2 gal vs 23.5 gal per cycle) and the same 35.1 gal on the 40 lb size. Higher extract means less water left in the load, so dryer time drops. Whether that pays depends on your dryer capacity and gas rate; the T-450 vs T-400 and T-650 vs T-600 comparison lays the spec-sheet differences side by side so you can run that math for your store.

Which Control Do You Have?

Three Dexter control generations are in service, and each has its own fault-code chart. The model number on the serial plate tells you which one you own. Current C-Series washers carry a model number starting WC with a C in the 12th position. Older machines read WCAD (A-Series), WCVD (V-Series) or WCN (N-Series); WCND is the 30-cycle control, and WCA, WCB, WCE and WCK prefixes are pre-1990s. Dryers follow the same logic: DC with a C is C-Series, DDAD and DDBD are A-Series.

The capacity is also coded in the model number: 0300, 18 or 20 means T-300; 0400, 25 or 30 means T-400; 0600 or 40 means T-600; 0900, 55 or 60 means T-900; 1200, 75 or 80 means T-1200; 1800 means T-1800. C-Series launched in summer 2014 with DexterLive-capable controls. The newest X-Series adds a multilingual touchscreen, leak detection, a Moisture Detection System on dryers and QR-code DexterPay; its T-1800 spec sheet is dated 09/01/2025. The decoder, the timeline and which code chart to open for each generation are in Which Dexter control do you have: A-Series vs C-Series vs X-Series.

Reading the Washer Fault Codes

C-Series washers show a text message on the display, not a number. That's helpful for your attendant, and confusing when a distributor blog translates the same faults into F1 through F19. Dexter's 12/15 C-Series troubleshooting document is the primary source; the most common displays are below.

Display	What it means	First checks
DOOR LOCK ERROR	Door-locked signal not received within 1 s of cycle start, after 3 attempts	VFD fault light, door and lock switch wiring, P-4 connector, lock adjustment
SLOW FILL ERROR	Low water level not reached within 7 min; cycle continues	Inlet screens, water pressure, fill valves, drain valve closing
SLOW DRAIN ERROR	Empty level not reached within 7 min	Drain valve, pressure-switch tube
MEMORY ERROR	Checksum or out-of-range value in control memory	Soft reset with the white button; replace PCB if it returns
COMM ERROR 4	Controller cannot talk to the VFD	Check or replace the data cable
DRIVE OC	Drive over-current; sets after a 35 s delay	Technician check of motor and drive
DRIVE OV	Drive over-voltage; supply must be 187–264 VAC	Incoming voltage, braking resistor (200 Ω for 1–2 hp, 160 Ω for 3 hp)
SPIN STOP ERROR	Cylinder did not stop within 150 s	Braking resistors

COMM ERROR 2 and COMM ERROR 3 usually show up after a control board is moved from a different-size washer; the jumper or harness tells the board the wrong size. The control fuse is 1.5 A on T-300 through T-950 and 2.5 A on T-1200 and T-1450. Anything involving the VFD, incoming voltage or the braking resistor is a technician job. Every C-Series code, with the wording the display actually shows, is covered in Dexter C-Series washer error codes explained. For how these faults compare with Speed Queen, Huebsch and Wascomat displays, see the commercial washer troubleshooting guide by brand. The maintenance habits that keep SLOW FILL and SLOW DRAIN off the display in the first place, mostly inlet screens and drain valves, are in Dexter washer maintenance tips.

The Soap Dispenser

The T-300, T-400 and T-600 share one top-hopper dispenser with three compartments. On the T-300 row I photographed, fabric softener runs the full width across the back, wash detergent is front left and bleach is front right. The T-400 owner's manual specifies low-suds powder for the detergent compartment and lists the whole maintenance routine as cleaning the dispenser and lid and checking the mounting screws. That routine gets skipped, which is how softener compartments end up caked solid.

Dexter's troubleshooting table covers the two dispenser complaints you'll hear most. "Water does not flush softener compartment" points to the valve coil and inlet screens. "No hot water in detergent dispenser" points to the water valve coil (which should see 120 V for 20 s during the wash bath), the inlet screens and the P-20 harness. If the box itself is cracked or the lid hinge is gone, the current dispenser part is 9122-005-004, which fits T-300, T-400, T-600 and T-900 and supersedes 9049-068-001/-002, 9114-040-001, 9122-005-001/-002 and 9732-108-001/-002. The symptom table, the supersession list and cleaning steps are in Dexter washer soap dispenser problems.

Because the hopper is identical across T-300, T-400 and T-600, one Dexter soap tray kit covers a mixed row without measuring each machine; the bilingual label marks the three compartments so customers stop dumping pods in the softener slot. Rolling it out across a row is walked through in the Dexter soap tray kit installation guide. For how the Dexter hopper compares with the four-compartment Speed Queen hopper and the Wascomat pull-out drawer, see commercial washer soap dispensers by brand.

Stack Dryers: T-30X2 and T-50X2

Dexter's vended dryer line is the T-30X2 and T-50X2 stacks plus single-pocket T-30, T-50 and T-80 dryers. There is no T-80X2.

Model	Capacity	Door opening	Airflow (60 Hz)	Gas per tumbler	Cabinet H × W × D (in)	Net weight
T-30X2	2 × 30 lb	22 5/8 in	600 cfm	90,000 BTU/hr	76 1/4 × 31 1/2 × 49 1/2	719 lb
T-50X2	2 × 50 lb	25 5/8 in	650 cfm	108,000 BTU/hr	79 1/4 × 34 1/2 × 54 3/4	871 lb

Both stacks vent through an 8 in exhaust, need 1.5 sq ft of make-up air per stack, and are rated for a maximum back-pressure of 0.3 in WC. Exceed it with a long duct run and Dexter's troubleshooting table lists the result: slow drying. The single T-80 uses the same 25 5/8 in door as the T-50X2. Dryer warranty is 5 years on the trunnion, bearings and bearing housing plus 3 years on parts. The venting math and the full spec comparison are in Dexter T-30X2 vs T-50X2 stack dryers.

C-Series dryers display text codes just like the washers. TEMP SENSOR SHORT and TEMP SENSOR OPEN stop the dryer until the sensor or wire is fixed and the programming button is pressed. COMM ERROR2 means no dryer model is selected on the jumper header, and COMM ERROR7 asks you to disconnect the DexterLive cable and soft-restart by holding the program button on power-up. Older dryer controls show numbered F-codes instead, and the two lists don't overlap. Gas valve, ignition control and burner work goes to a technician. Both code generations are laid out separately in Dexter dryer error codes F1–F4 and TEMP SENSOR SHORT.

Installation Requirements

All C-Series washers fit through a standard 36 in doorway. Each needs a 3/4 in water inlet at 30–120 psi, 1/2 in minimum clearance between machines and 24 in behind. The slab is the real constraint on a retool. Dexter's minimum concrete is 6 in for the T-300, T-400, T-450 and T-600, 8 in for the T-650, T-900 and T-1200, and 12 in for the T-1800. If you don't know your slab thickness, core it before you order 60 lb and 80 lb machines; a T-1200 weighs 1,022 lb empty and the T-1800 weighs 1,415 lb.

The C-Series washer warranty is 10 years on the frame, tub, cylinder, shaft, seals, bearings and bearing housing, plus 3 years on parts. The X-Series T-1800 spec sheet lists a 5-year parts warranty. Keep a photo of each serial plate with your purchase records; you'll need the model and serial number for any warranty claim.

DexterLive, DexterPay and Vend Pricing

DexterLive is included free with every vended C-Series and X-Series machine, with no recurring fees. The network requirement is a minimum of 5 Mbps down and 5 Mbps up, and the washer location kit is an Ethernet switch with Cat5e cables for 10 washers, expandable to 15 with extra cables. DexterPay runs on top of it: no preload for the customer, no annual fee for you, and you pay per use. It takes Visa, Mastercard, Discover, Apple Pay and Google Pay, works with any C-Series control on DexterLive, and can be retrofitted to equipment more than 10 years old.

You don't need a laptop to change a vend price. Unlock and lift the top, hold the program button for 1 second until the display shows PROGRAMMING, go to SET VEND, step the price with Up and Down, and press Enter to store it. The full sequence, plus how to push the same price to the whole row through DexterLive, is in how to change the vend price on a Dexter C-Series washer.

What a Dexter Costs

Dexter sells only through authorized distributors and publishes no list prices, so every number you see online is a quote or a guess. One equipment seller's 2026 price guide uses a rule of thumb of about $1,000 per 10 lb of capacity, which puts a 40 lb T-600 near $4,000, with quotes running up to roughly 50% higher. The same source puts a new T-900 "often $7,000–$18,000" and shows a refurbished Dexter 55 lb listed at $5,500. Dexter Financial advertises promotional rates starting at 6.99%.

Ask for freight, installation, and accessories as separate lines on the quote. Distributors routinely itemize them, and a "machine price" that leaves off freight on a 964 lb T-900 is not the number you'll pay. Ranges by model, used comparables and what belongs on the invoice are in what a Dexter washer costs in 2026. For how Dexter's pricing and sizing sit against Speed Queen, Huebsch and Wascomat, and how to finance a full retool, start with buying laundromat equipment: brands compared, prices, sizing and financing.

The comparison operators actually search for is Dexter against Wascomat, because both are hard-mount lines that bolt to a slab. Wascomat's W-series 100G hard-mounts top out at a 17 1/8 in door on the 62 lb and 77 lb machines, while every Dexter from 50 lb up has a 19 1/4 in door. Forum sentiment splits: Dexter washers get called "built like tanks," Dexter dryers draw more complaints, and Wascomat gets credit as the easiest to repair. Spec against spec, with sources, is in Dexter vs Wascomat for slab-floor stores.

Which Dexter Should You Buy?

If you're replacing a few machines in a Dexter store, stay on C-Series or X-Series and match the door size of the row: 15 1/4 in for 30 lb and 40 lb, 19 1/4 in for 60 lb and up. If you're doing a full retool on a slab you've cored at 8 in or more, price the T-650 Express against a T-600 plus the extra dryer time; the 200 g machine only wins when your dryers are the bottleneck. If the slab is 6 in, the decision is made for you: T-300, T-400, T-450 or T-600.

Standardize on the fewest sizes that cover your mix. Two washer sizes and one stack dryer keeps parts, controls and labels interchangeable, and your attendant only has to learn one fault-code chart. Before you sign any quote, write down the model number from the serial plate of the machines you're keeping, confirm which control generation they are, and ask the distributor to quote the new machines on the same control so the whole row runs on one DexterLive account.

Laundromat Label Co. makes brand-specific soap tray kits, labels and liners for Speed Queen, Huebsch, Dexter, Wascomat and Electrolux machines, including the Dexter collection that fits the T-300, T-400 and T-600 hopper. Orders over $150 ship free.