Jackson dishwasher wash pump seal kit
Match the machine model and pump assembly before replacing a leaking wash pump seal.
$35-$150
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Jackson Commercial Dishwasher Error Codes — What They Mean
Jackson WWS (Warewashing Solutions) manufactures commercial dishwashers widely used in US food service operations including undercounters, door-types, and conveyor machines.
| Code | Meaning | Urgency |
|---|---|---|
| E-1 | Wash tank low water | Medium |
| E-2 | Wash tank fill timeout | Medium |
| E-3 | Wash tank temperature low | Medium |
| E-4 | Final rinse temperature low | High |
| E-5 | Wash pump motor fault | High |
| E-6 | Drain fault | Medium |
| E-7 | Door not closed | Medium |
| E-8 | Chemical dispenser fault | Low |
Common Fixes
E-1/E-2 (water): Check water supply pressure and shutoff valve. Clean inlet valve screen. Test solenoid coil (typically 200-400Ω).
E-3/E-4 (temperature): Jackson dishwashers require 140°F minimum incoming water. Check booster heater element and thermostat. High-temp final rinse units need sanitizing temperature reached within the rinse cycle.
E-5 (wash pump): Check for foreign objects in the pump sump. Verify pump motor amperage. Common failure point: worn pump seal allows water into motor.
E-7 (door): Verify door closes fully and latches. Check door interlock switch alignment — a misaligned switch causes E-7 on every cycle.
Parts Often Needed
| Part | Notes |
|---|---|
| Wash pump seal kit | Prevents water ingress to motor |
| Booster heater element | For E-4 temperature faults |
| Inlet valve | For persistent E-1/E-2 |
Related Resources
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- Beverage-Air Refrigerator Error Code E1 — Causes & Fix
- Beverage-Air Refrigerator Error Code E2 — Evaporator Sensor …
Need Replacement Parts?
Before ordering, match the refrigeration part to the model number, electrical rating, and failure symptom. Check current prices on Amazon - prices and availability change frequently.
When to Call a Pro
Jackson dishwasher control board and high-voltage work requires authorized service.