EHPWH Element Heater Replacement Instructions
Product Information
Kit Name: Element Heater
Kit Part Number: 105002064
Compatible Rinnai Products: Rinnai Heat Pump Water Heater: All REHP Series Models
Safety Warnings
WARNING: Failure to correctly assemble the components according to these instructions may result in electric shock, injury, or death.
CAUTION: To protect yourself from harm, follow the steps below before proceeding.
- Antistatic gloves must be worn.
- Disconnect the electrical power supply by turning off the electricity at the circuit breaker.
- Turn off the water by closing manual ball valves for the hot and cold water connections at the appliance.
- Drain the tank completely before removing a bad element heater.
Items Inside Product Box
Before installation, please make sure all parts are located inside the product box.
| Item # | Item | Qty |
|---|---|---|
| 1 | Element Heater | 1 |
Figure 1: Illustration showing the Element Heater and its components.
Tools/Materials Required
- Phillips Head Screw Driver
- 1-1/2 inch Socket Wrench
- Thread Sealant Tape OR Pipe Joint Compound
Instructions
- Antistatic gloves must be worn to protect yourself from harm.
- Disconnect the electrical power supply by turning off the electricity at the circuit breaker.
- Turn off the water by closing manual valves for the hot and cold water connections at the appliance.
- Drain the tank completely by connecting a drain hose to drain valve and opening the drain valve. Open the T&P valve and allow the atmospheric air to get in the tank while draining.
- Use a Phillips head screw driver to remove 6 screws located on the cover (TCO)/ cover (electric heater). Keep the removed cover safe to be reinstalled in step 11. (Refer to Figure 2 for visual guidance on cover removal.)
- Use a Phillips head screw driver to remove a screw securing black insulation cover to gain access of element heater. Keep the cover safe to be reinstalled in step 10. (Refer to Figure 3 for visual guidance on insulation cover removal.)
- Use a Phillips head screw driver to remove 2 screws securing the ring terminal to the element heater. Keep the removed 2 screws secured to be reinstalled in step 9. (Refer to Figure 4 for visual guidance on ring terminal removal.)
- Use a 1-1/2 inch socket wrench to remove the heater element. (Refer to Figure 5 for visual guidance on element removal.)
CAUTION: DO NOT try to remove the element heater by rotating the element heater body. Must use 1-1/2 inch socket to hold metal hex of the element and remove.
Element Heater Reassembly
- Install new element heater using 1-1/2 inch socket wrench. Apply thread sealant tape or pipe joint compound to prevent any water leakage. (Refer to Figure 5 for visual guidance on installation.)
- Reinstall 2 screws to secure ring terminals on new element heater. (Refer to Figure 4 for visual guidance on ring terminal reinstallation.)
- Install back the back insulation cover using 2 screws. (Refer to Figure 3 for visual guidance on insulation cover reinstallation.)
- Reinstall the cover (TCO)/ cover (electric heater) using 6 screws on the appliance. (Refer to Figure 2 for visual guidance on cover reinstallation.)
- Turn on the water by opening manual valves for the hot and cold water connections at the appliance. Allow the tank to refill before reconnecting power supply. Open a faucet in the house to bleed out excessive air while filling up the tank.
- Reconnect the electrical power supply by turning on the electricity at the circuit breaker.
- Ensure that the appliance runs fine. May need to open one of the faucets in the house to start up the appliance.
Important Notes
This appliance has two element heaters located on the front side of it. One located on the right side of hot water connection and second located above drain valve. Follow this instruction to replace either one of the element heaters.
The product box includes only one element heater. If both element heaters need to be replaced, order 2 quantities.
Diagram Descriptions
Figure 2: Illustrates the process of removing the outer cover (TCO/electric heater cover) using a Phillips head screwdriver, showing screws being removed.
Figure 3: Depicts the removal of a screw securing the black insulation cover to access the element heater using a Phillips head screwdriver.
Figure 4: Shows the removal of ring terminals from the element heater using a Phillips head screwdriver.
Figure 5: Demonstrates the use of a 1-1/2 inch socket wrench to hold the metal hex of the element heater and remove it from the appliance.
