1. Introduction
This manual provides essential instructions for the safe and effective installation, operation, and maintenance of the LASCO 40-1015 High Watt Density Electric Water Heater Element. This element is designed for use in electric water heaters requiring a 1500-watt, 120-volt screw-in type element with a 1 1/4-inch thread and an 8-inch length. Please read all instructions carefully before proceeding with installation or maintenance.
2. Safety Information
WARNING: Risk of Electric Shock and Burns.
- Always disconnect power to the water heater at the circuit breaker or fuse box before attempting any installation, maintenance, or repair.
- Ensure the water heater is completely drained and cooled before removing or installing the element to prevent scalding.
- Installation should only be performed by a qualified electrician or plumber in accordance with all local electrical and plumbing codes.
- Wear appropriate personal protective equipment, including safety glasses and gloves.
- Do not energize the water heater element unless it is fully submerged in water.
3. Product Overview
The LASCO 40-1015 is a high-watt density electric water heater element designed for efficient heating. It features a screw-in design for easy replacement in compatible water heater models.

Image 1: LASCO 40-1015 Electric Water Heater Element. This image shows the heating element with its screw-in base and two electrical terminals.
Key Features:
- High Watt Density: Provides efficient heat transfer.
- Power Rating: 1500 watts, 120 volts.
- Thread Type: 1 1/4-inch screw-in thread.
- Length: 8 inches.
- Compatibility: Fits most models designed for screw-in elements of the same wattage and voltage.
- Installation: Designed for easy replacement.
4. Setup and Installation
This section outlines the general steps for replacing an electric water heater element. Always refer to your specific water heater manufacturer's instructions for detailed guidance.
Required Tools:
- Adjustable wrench or element wrench
- Screwdriver
- Voltmeter/Multimeter
- Bucket and hose for draining
- Thread sealant tape (Teflon tape)
- New gasket (often included with element, or purchased separately)
Installation Steps:
- Disconnect Power: Turn off the electricity to the water heater at the main electrical panel. Verify power is off using a voltmeter.
- Shut Off Water Supply: Close the cold water inlet valve to the water heater.
- Drain Water Heater: Connect a hose to the drain valve at the bottom of the water heater and open the valve. Open a hot water faucet in your home to allow air into the tank and facilitate draining. Drain the tank completely.
- Access Element: Remove the access panel(s) covering the heating element(s). You may need to remove insulation.
- Disconnect Wiring: Carefully disconnect the electrical wires from the old heating element terminals. Note their positions for re-connection.
- Remove Old Element: Use an element wrench or adjustable wrench to unscrew the old heating element counter-clockwise. Be prepared for residual water to leak out.
- Clean Opening: Clean any sediment or debris from around the element opening.
- Install New Element: Apply thread sealant tape to the threads of the new LASCO 40-1015 element. Insert the new element into the opening and screw it in clockwise until hand-tight. Then, use the wrench to tighten it securely, ensuring the gasket creates a watertight seal. Do not overtighten.
- Reconnect Wiring: Reconnect the electrical wires to the new element terminals in their original positions. Ensure connections are tight.
- Refill Water Heater: Close the drain valve. Open the cold water inlet valve to the water heater. Keep a hot water faucet open in your home until water flows steadily, indicating the tank is full and air has been purged. Close the hot water faucet.
- Restore Power: Once the tank is completely full of water, restore power to the water heater at the main electrical panel.
- Check for Leaks: Monitor the element area for any leaks after refilling and during the initial heating cycle.
5. Operating Instructions
The LASCO 40-1015 electric water heater element operates automatically as part of your water heater's system. Once installed correctly and power is restored, the element will heat the water according to the thermostat settings of your water heater. There are no user-adjustable controls on the element itself.
- Ensure the water heater tank is always full of water when power is supplied to prevent element burnout.
- Refer to your water heater's manual for instructions on adjusting temperature settings.
6. Maintenance
Regular maintenance of your water heater, including the heating element, can extend its lifespan and maintain efficiency.
- Annual Inspection: Annually inspect the element for signs of corrosion, mineral buildup, or damage. Disconnect power and drain the tank before inspection.
- Sediment Flush: Periodically flush the water heater tank to remove sediment, which can accumulate around the element and reduce efficiency. Refer to your water heater manual for flushing procedures.
- Anode Rod Check: Check and replace the anode rod as recommended by your water heater manufacturer. A healthy anode rod protects the tank and elements from corrosion.
7. Troubleshooting
If your water heater is not performing as expected, the element may be a contributing factor. Always ensure power is disconnected before inspecting components.
Common Issues and Solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No hot water | No power to water heater; tripped breaker; faulty thermostat; faulty element | Check power supply and breaker. Test thermostat and element for continuity with a multimeter. Replace faulty components. |
| Insufficient hot water / Slow recovery | One element failed (if two elements); excessive sediment buildup; incorrect thermostat setting | Test both elements for continuity. Flush tank to remove sediment. Adjust thermostat to desired temperature. |
| Water leaking around element | Loose element; damaged gasket | Tighten element (ensure power is off and tank is drained). Replace gasket. |
If troubleshooting steps do not resolve the issue, it is recommended to contact a qualified professional.
8. Specifications
| Specification | Value |
|---|---|
| Model Number | 40-1015 |
| Brand | LASCO |
| Wattage | 1500 watts |
| Voltage | 120 volts |
| Item Length | 8 inches |
| Thread Size | 1 1/4-inch screw-in |
| Item Weight | 7 ounces |
| UPC | 052151178619 |
9. Warranty and Support
The LASCO 40-1015 Electric Water Heater Element comes with a 1 Year Warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
For warranty claims, technical support, or further assistance, please contact LASCO customer service. Keep your proof of purchase for warranty validation.





