This document is a service manual for 24" Built-In Dishwashers, specifically for 2001 Mechanical Models featuring the Precision Wash System, manufactured by Electrolux Home Products North America. It covers various brands including Frigidaire, Tappan, White-Westinghouse, Gibson, and Kelvinator.
Function Description
The dishwasher's primary function is to clean dishes using a multi-stage wash and rinse process. It incorporates a "Precision Wash System" designed for efficient water distribution and soil removal. The system utilizes both upper and lower spray arms, with some models featuring a "Collapsible Tower" on the lower spray arm to maximize space in the lower rack. Water distribution is controlled by a check ball mechanism that alternates water flow between the upper and lower spray arms during different cycles. This ensures that only one spray arm operates at a time, optimizing water pressure and cleaning effectiveness. The sump design includes two cavities: one for filtered water recirculation and another, a "quiet water cavity," for collecting food soil near the macerator blade before it is removed by the drain pump.
Drying systems vary by model and can include:
- Static Dry System: A vent located on the upper left-hand side of the door remains open, allowing warm, moist air to escape and drawing in ambient air from the bottom of the door.
- Active Vent System: The vent remains closed until the dry cycle, then opens to release moist air while drawing in ambient air from the bottom of the door.
- Power Vent System: Similar to the Active Vent System, but with the addition of a centrifugal blower motor that accelerates air movement during the dry cycle. The door vent actuator, which opens the vent, is wax motor-operated and only activates during the dry cycle to minimize heat loss and noise.
The dispensing system features two detergent cups (one with a spring-loaded cover and one open) and a rinse aid dispenser. The covered detergent cup releases detergent during the second wash, while the rinse aid is dispensed during the final rinse. The amount of rinse aid dispensed can be adjusted.
Important Technical Specifications
The manual provides detailed electrical and water supply specifications for numerous models across different brands. Key specifications include:
- Voltage: All listed models operate at 120 VAC, 60 Hertz.
- Circuit Rating (Amps): Typically 15/20 Amps for most models.
- Motor (HP): 1/12th HP for most wash pumps, with some Amana models listing 3.4 Amps for the motor, indicating a different motor type or specification. Drain pumps are 1/25th HP.
- Heater (Watts): Consistently 900 Watts across all listed models.
- Total Amps: 10 Amps for most models, with some Amana models listing 11 Amps.
- Temperature Assurance/Boost/Sanitize:
- Temp Assure: 117°F ± 5°F for some models, N/A for others.
- Temp Boost: Ranges from 122°F (50°C) to 127°F (53°C) for various models.
- Sanitize: N/A for many models, but some Frigidaire and Amana models feature 137°F (58°C).
- Hi-Limit Thermostat: 200°F (93°C) for all models, indicating a safety cut-off.
- Component Resistance (ohms):
- Timer Motor: Varies significantly, from 2357 ohms to 7700 ohms, depending on the model.
- Heating Element: 9.28 ohms or 13.5 ohms.
- Vent Actuator: 1893 ohms (N/A for static vent models).
- Dispenser: 1928 ohms.
- Drain Motor: 28 ohms.
- Water Valve Solenoid: 699 ohms.
- Blower: N/A for most models, but 214 ohms for models with a power vent.
- Water Supply:
- Minimum Incoming Water Temperature: 120°F (49°C) for all models.
- Pressure (min/max - psi): 20/120 psi for all models.
- Connection (NPT): 3/8" for all models.
- Normal Cycle Water Consumption (gal.): 6 or 7.2 gallons.
- Water Valve Flow Rate (GPM): 0.83 GPM.
- Water Recirculation Rate (GPM): 12 GPM.
- Water Fill Time (Seconds): 87 seconds.
Usage Features
- Collapsible Tower: On low-end models, the lower spray arm includes a collapsible tower that retracts completely, providing more space in the lower rack for larger items.
- Sanitize Rinse: Higher-end models offer a "sanitize rinse" setting, reaching a rinse temperature of 150°F for enhanced hygiene.
- Selector Switches: Models feature either rocker or push-button selector switches, ranging from two to eight buttons, controlling various wash and dry options.
- Heated Dry: An option for heated drying, controlled by a switch in series with the heating element.
- Hi-Temp Wash/Rinse: Options that ensure higher water temperatures (137°F ± 5°F for wash, 150°F ± 5°F for sanitize rinse) by pausing the timer until the desired temperature is reached.
Maintenance Features
- Safety Precautions: Emphasizes critical safety practices, including disconnecting power, turning off gas/water, using only cataloged replacement parts, and reestablishing all safety grounds.
- Wash Pump: The wash pump and motor are a single, non-repairable assembly, simplifying replacement. The new motor design eliminates the need for a seal to prevent water leaks and includes a small circuit board for proper motor startup direction.
- Vent Cover: The vent cover has a molded gasket to prevent water leaks, improving reliability.
- Drain Pump Cleaning: The drain pump cover can be removed for easy cleaning.
- Filter Access: The filter, glass trap, spray arm, and spray arm support can be removed for cleaning.
- Leveling Legs: Four hex-shaped leveling legs allow for easy adjustment from the top using a wrench or socket, facilitating installation on various flooring types.
- Troubleshooting Tips: The manual includes a comprehensive troubleshooting section with common symptoms, checks, and remedies for issues like the dishwasher not operating, motor humming, tripping thermal overload, not heating, detergent not dispensing, or not pumping out.
- Disassembly Instructions: Detailed step-by-step instructions are provided for disassembling various components, including the control panel, timer, selector switch, door panels, door vent assembly, vent valve, vent actuator, vent blower, detergent/rinse aid dispenser, inner door panel, door seal, upper rack, upper water tube, upper spray arm, water distributor, kick plate, heating element, float switch and bracket, water valve, drain pump, lower spray arm, glass trap, lower spray arm support, filter, pump and motor assembly, motor mounting bracket, motor and impeller, thermostats, and indicator lamps.
- Thermal Mastic: Instructions specify applying thermal mastic when reinstalling thermostats to ensure proper thermal contact.
- Indicator Lamps: Indicator lamps are part of the wiring harness and are not available separately, meaning the entire harness may need replacement if a lamp fails.
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