0Glastender Glasswasher Parts & Troubleshooting Guide
Glastender glasswasher parts should be identified by model, serial number, operating system, and OEM number—not by appearance alone. This guide explains the major service systems used in Glastender low-temperature and high-temperature glasswashers, the symptoms that help narrow a fault, and the evidence to collect before ordering a replacement part.
Glastender glasswasher model families
Glastender’s current glasswasher documentation separates low-temperature chemical-sanitizing equipment from high-temperature sanitizing equipment. The low-temperature family includes GT-18 stations and the GW24 rotary glasswasher. The GD24HT is a high-temperature underbar glasswasher with a built-in booster, pumped drain, controls, and temperature-dependent sanitizing systems. Use the equipment data plate and current manual to determine which system you are servicing.
| Equipment family | Service clues | Parts commonly investigated |
|---|---|---|
| GT-18 series | Rotary-rack low-temperature platform with several station configurations | Pumps, chemical tubing, valves, switches, drain linkage, wash components, and controls |
| GW24 | 24-inch rotary low-temperature chemical-sanitizing glasswasher | Chemical pumps, valves, conveyor or drive components, switches, drain parts, and controls |
| GD24HT | High-temperature underbar machine with booster and pumped drain | Heating and temperature components, pumps, solenoid valves, controls, pressure-related parts, and drain components |
Find parts by glasswasher system
Fill and water-control system
Slow fill, no fill, overfilling, water hammer, or inconsistent cycle volume can point toward the incoming water supply, strainer, valve, pressure regulation, level sensing, or related wiring. Verify facility water conditions before condemning an internal component. A valve with the correct voltage but the wrong connection, flow direction, or model application is not a safe substitute.
Wash and circulation system
Poor washing can result from blocked spray openings, incorrect chemical delivery, low water volume, worn pump components, a motor fault, or debris in the wash system. Inspect removable and cleanable items first. If a pump or motor is suspected, record its OEM number, electrical rating, mounting pattern, and connections.
Chemical delivery system
Low-temperature glasswashers depend on correctly operating chemical pumps, pickup tubing, and priming controls. Brittle or flattened tubing, air leaks, empty containers, and incorrectly routed lines can mimic a failed pump. Never mix tubing sizes or materials without model-specific documentation.
- Record the pump label, OEM number, voltage, and the chemical circuit it serves.
- Measure tubing inside and outside diameter and document its routing before removal.
- Photograph pickup fittings, pump-head connections, check valves, and line colors without assuming color alone identifies the chemical.
- Confirm tubing material and chemical compatibility in the exact model documentation.
Drain system
Water remaining after a cycle can involve a blocked drain path, drain linkage, pump, hose installation, control command, or facility drain condition. Determine whether the machine uses gravity drainage, mechanical linkage, or a pumped drain before selecting parts.
Controls, switches, and interlocks
A machine that will not start, stops mid-cycle, or repeats a cycle may have an open interlock, switch problem, control fault, loose connection, or another system condition preventing operation. Document the precise sequence of events instead of replacing the first electrical component that appears related.
Symptom-to-system troubleshooting map
| Observed symptom | Inspect first | Information to record |
|---|---|---|
| No fill or slow fill | Water supply, shutoff, screen or strainer, valve command, pressure condition | Model, serial, supply condition, valve number, voltage |
| Poor wash results | Spray path, water level, chemical feed, wash pump, rack movement | Cycle stage, noise, pump markings, visible blockage |
| Does not drain | Drain obstruction, hose routing, linkage or drain pump, control command | Drain type, hose height, OEM number, remaining water level |
| Will not start | Power, door or cover interlock, start switch, controls, wiring | Display state, switch markings, model and serial |
| Temperature or sanitizing concern | Incoming conditions, heater or booster system, sensor, control, chemical delivery | Machine family, displayed readings, manual requirements |
Before ordering a Glastender glasswasher part
- Photograph the complete data plate and record the full model and serial number.
- Capture the OEM number and every electrical or flow marking on the original component.
- Compare voltage, connection size, hose or tube size, mounting pattern, and orientation.
- Use the current model manual or parts documentation to confirm the assembly and serial range.
- Inspect surrounding wiring, tubing, connectors, seals, and restrictions so a secondary problem is not missed.
Shop available Glastender parts, use the Glastender parts lookup guide, or return to the Glastender Parts Resource Center. Current active inventory includes the Glastender 01000550 pressure switch; verify exact application before ordering.
For manufacturer documentation, consult Glastender’s official manuals library and serial-number part finder.
Common glasswasher ordering mistakes
- Confusing low-temperature chemical-sanitizing components with GD24HT high-temperature components.
- Choosing a pump or valve without matching voltage, connections, flow direction, and serial range.
- Replacing a chemical pump before checking empty containers, air leaks, tubing condition, routing, and priming.
- Ordering a drain part before identifying whether the machine uses gravity, linkage, or a pumped drain.
Glastender glasswasher parts FAQ
Which Glastender glasswasher model do I have?
Use the model and serial data plate before selecting parts. Glastender currently documents low-temperature GT-18 and GW24 families and the high-temperature GD24HT family; their wash, sanitizing, drain, and control systems are not interchangeable by appearance alone.
Can I order a glasswasher part from a photo?
A photo is useful for confirming shape and connections, but the strongest match includes the Glastender OEM number, model, serial number, voltage, dimensions, and the markings on the installed component.
Why is my Glastender glasswasher not completing a cycle?
Possible causes include an interlock or switch condition, a control problem, inadequate fill or drain performance, a pump issue, or a wiring fault. Record the exact cycle stage and any display message before testing components.
Are GT-18, GW24, and GD24HT parts interchangeable?
Do not assume interchangeability. These model families use different operating designs and sanitizing methods. Confirm every replacement against manufacturer documentation for the exact model and serial range.
Should a technician install electrical or pump parts?
Yes. Commercial glasswashers combine electricity, water, chemicals, heat, and moving components. Disconnect utilities and use a qualified commercial-equipment technician for electrical, pump, control, or internal plumbing service.
Technical scope reviewed against current manufacturer product categories and manuals on 2026-09-15. Always follow the manual and safety requirements for the exact model being serviced.