# The cycles your dishwasher has might be wildly different - you should try 'em out

Source: https://www.youtube.com/watch?v=WnBb3DLlVPw
Recap page: https://rapidrecap.app/video/WnBb3DLlVPw
Generated: 2025-11-04T20:04:16.997+00:00

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## Quick Overview

The speaker details the significant differences in water and energy usage between the normal wash and high-temp wash cycles on a specific Frigidaire dishwasher, noting that the high-temp cycle uses substantially more water (up to 95% more) and energy, despite the manufacturer's data sheets suggesting similar water usage, due to the necessity of running extra rinses and longer heating times to reach the required sanitization temperature.

**Key Points:**
- The high-temp wash cycle on the tested Frigidaire dishwasher uses significantly more water (up to 95% more) than the normal wash cycle, contradicting manufacturer data sheets.
- The normal wash cycle uses 4.2 gallons (16 liters) of water per cycle, while the high-temp wash uses 8.2 gallons (31 liters) per cycle.
- The high-temp wash cycle requires approximately 10 minutes longer total cycle time compared to the normal wash cycle.
- The high-temp cycle uses 1.07 kWh of energy, compared to 0.87 kWh for the normal cycle, with the difference largely attributed to heating the water to meet sanitization standards.
- The normal wash cycle's main wash reaches about 134°F, while the high-temp cycle reaches 150°F or more during the main wash.
- The dishwasher's design, including the mechanical dispenser actuation and water flow control, is cited as the reason for the extra water usage in high-temp/sanitize modes, suggesting manufacturers may be prioritizing meeting temperature standards over water conservation.
- The speaker advises users with this model to use the normal cycle unless the high-temp option is strictly necessary, as the savings in water and energy are substantial.

![Screenshot at 04:04: The data sheet for the dishwasher is shown, detailing cycle options and timing, which the speaker later claims is inaccurate regarding water usage for certain cycles.](https://ss.rapidrecap.app/screens/WnBb3DLlVPw/00-04-04.png)

**Context:** The speaker is conducting a detailed analysis comparing the resource consumption (water and energy) of different wash cycles, specifically the 'Normal Wash' versus the 'High Temp' wash, on a Frigidaire dishwasher. The experiment involves running the dishwasher with a temperature data logger and measuring cycle timing and water usage to reveal discrepancies between manufacturer claims (found on service data sheets) and actual performance, especially when using the high-temp function.

## Detailed Analysis

The speaker compares the resource usage of the normal wash cycle versus the high-temp wash cycle on a Frigidaire dishwasher, revealing significant discrepancies from the manufacturer's data sheets. The normal wash cycle uses 4.2 gallons (16 liters) of water and 0.87 kWh of energy. When the high-temp option is selected, the water usage jumps to 8.2 gallons (31 liters) per cycle—a 95% increase—and energy consumption rises to 1.07 kWh. This difference is attributed to the machine running extra pre-washes and main washes, and extending heating times to meet the required sanitization temperature (150°F). The speaker notes that the normal wash cycle, even without pre-purging cold water from the lines, still reaches adequate temperatures (peaking around 134°F) without the extra water. The data shows that the high-temp mode forces the machine to run long pre-washes and uses a mechanical system (a ball/actuator) to control the detergent dispenser, which seems inefficiently programmed compared to the light wash. The speaker concludes that the normal cycle is far more efficient, and users should avoid the high-temp option unless necessary, as the manufacturer's programming leads to excessive water and energy consumption for the added benefit.

### Light Wash Cycle Analysis

- Total cycle time is 5:44, using 4.2 gallons of water and 0.87 kWh of energy
- Light wash with Hi Temp adds 4 minutes to the total cycle time and uses 8.2 gallons (31 liters) of water and 1.07 kWh of energy
- The light wash only uses 15% more water than the energy saver cycle.

### Heavy Wash Cycle Analysis

- Total cycle time is 4:39, including a 3-minute pre-wash, a 6-minute pre-wash, and a 7-minute heated pre-rinse
- Main wash time is 45 minutes with 45 minutes of heat, slightly less than the normal wash's heat time.

### Normal Wash Cycle Analysis (No Delay)

- Total cycle time is 1:22, with 4.9 gallons of water used
- The cycle includes one 3-minute pre-wash, a 10-minute heated pre-wash, and a 45-minute main wash with 45 minutes of heat
- The main wash reaches a peak temperature of 141.1°F.

### Normal Wash with Hi Temp Analysis

- Total cycle time is 2:24, using 8.2 gallons of water
- The cycle includes a 5-minute pre-wash, a 10-minute heated pre-wash, and a 52-minute main wash with 50 minutes of heat
- The main wash peaks at 150°F, but the final rinse also causes the heating element to run unnecessarily.

### Dishwasher Programming Critique

- The manufacturer's programming is considered unnecessarily complex and inefficient, leading to excessive water usage in high-temp settings
- The reliance on mechanical actuators for dispensing and the sequencing of cycles are criticized as poor design choices.

### Final Recommendation

- The speaker strongly advises against using the high-temp wash option unless absolutely necessary due to the massive increase in resource consumption compared to the normal cycle.

![Screenshot at 00:04: The host introduces the topic while holding a smartphone, with the Frigidaire dishwasher visible in the background.](https://ss.rapidrecap.app/screens/WnBb3DLlVPw/00-00-04.png)
![Screenshot at 00:06: The control panel of the Frigidaire dishwasher is shown with the FILL, DRAIN, WASH, RINSE, and HEAT lights illuminated.](https://ss.rapidrecap.app/screens/WnBb3DLlVPw/00-00-06.png)
![Screenshot at 00:23: A pouch of Green Clean Dishwasher Powder is displayed on the table, highlighting the product being tested.](https://ss.rapidrecap.app/screens/WnBb3DLlVPw/00-00-23.png)
![Screenshot at 02:54: A graph comparing the temperature curves for a cycle 'started without purging cold water' \(red line\) versus 'started after purging cold water' \(black line\) is shown as evidence.](https://ss.rapidrecap.app/screens/WnBb3DLlVPw/00-02-54.png)
![Screenshot at 05:56: A close-up view inside the dishwasher rack shows mugs covered in a thick, orange peanut butter residue during a wash cycle.](https://ss.rapidrecap.app/screens/WnBb3DLlVPw/00-05-56.png)
![Screenshot at 08:18: A split-screen graphic compares the temperature profile of a cycle 'started without purging cold water' \(left, red line\) against one 'started after purging cold water' \(right, black line\), demonstrating the impact of pre-purging.](https://ss.rapidrecap.app/screens/WnBb3DLlVPw/00-08-18.png)
![Screenshot at 10:36: A close-up of the detergent dispenser compartment inside the dishwasher, showing the mechanism used for dispensing detergent.](https://ss.rapidrecap.app/screens/WnBb3DLlVPw/00-10-36.png)
![Screenshot at 11:09: An internal view of the dishwasher tub during a cycle, showing water cascading down the sides, illustrating the washing action.](https://ss.rapidrecap.app/screens/WnBb3DLlVPw/00-11-09.png)
![Screenshot at 13:33: The dishwasher control panel displaying the 'Normal Wash' cycle with the 'Hi Temp' option selected, as the clock shows 01:23.](https://ss.rapidrecap.app/screens/WnBb3DLlVPw/00-13-33.png)
![Screenshot at 16:34: A graphic overlay indicating that the 'Normal Wash' cycle uses 4.2 gallons \(16 liters\) of water, contrasting with the higher usage of other cycles.](https://ss.rapidrecap.app/screens/WnBb3DLlVPw/00-16-34.png)