A.O. Smith ELJH-30 - User Manual

Questions and Answers

E
erinwilliamsAug 11, 2025
What to do if my A.O. Smith ELJH-30 Water Heater has no indication light and no hot water?
- K
  kathryn56Aug 11, 2025
  If your A.O. Smith water heater shows no indication light and isn't producing hot water, there are several potential causes. First, ensure the heater is receiving power by switching it on. Next, verify that the electric socket is functioning correctly. If these steps don't resolve the issue, there may be a failure in the control circuit or internal wiring.
G
George MooreAug 19, 2025
Why is my A.O. Smith Water Heater dripping from the enclosure?
- J
  John CervantesAug 19, 2025
  If you notice dripping from the enclosure of your A.O. Smith water heater, it could be due to several reasons. First, immediately disconnect the power to the heater, as it may be caused by tank or accessories leakage. Another possible cause is a blocked drain. In this case, check the condensation pipe and ensure it's directed downwards.
T
Thomas YoungAug 27, 2025
What to do if my A.O. Smith Water Heater is dripping from pipe joints?
- K
  Kathleen SpenceAug 27, 2025
  If your A.O. Smith water heater is dripping from the pipe joints, it's likely due to unsealed joints. Reconnect the water heater pipes, ensuring you use sealant to create a proper seal.
J
jennifer19Sep 3, 2025
Why is my A.O. Smith Water Heater showing no indication light but has high water temperature?
- B
  Brenda SimsSep 3, 2025
  If your A.O. Smith water heater's indicator light is off, but the water temperature is high, it could be that the high-temperature limit switch has tripped. Turn off the power supply to the heater.

Summary

Specifications

Component Description

Key Features

Glass Coated Element

Prevents scale formation on heating elements, extending their lifespan.

Blue Diamond Glass Lining

Special fusion process at 870°C for corrosion and scaling resistance.

Anode Rod Protection

Stainless core anode rod system protects the tank from corrosive elements.

Safety Valve

Automatically relieves pressure/temperature exceeding preset limits.

Thermal Cut Out

Cuts off power if temperature exceeds preset limit (93°C) for safety.

Installation

Mounting

Advises on installation location, proximity to utilities, and potential damage prevention.

Mounting procedures and precautions

Details installation surface requirements and securing the heater properly.

Mounting guidelines

Provides specific instructions for drilling holes and installing mounting brackets.

Plumbing connection

Covers connecting the safety valve, inlet, outlet, and discharge pipes.

Power connection

Specifies requirements for electrical supply, switch, socket, and wiring.

Water filling

Guides the process of filling the tank with water and venting air.

Directions of use

Temperature setting

Explains how to adjust the temperature using the setting knob.

Operation

Describes turning on the heater and the function of the indication light.

Maintenance Instructions

Maintenance

Outlines the procedure for servicing the water heater, including draining and flushing.

Troubleshooting

A.O. Smith ELJH-30 Specifications

General

Brand	A.O. Smith
Model	ELJH-30
Type	Electric Water Heater
Capacity	30 gallons
Voltage	240V
Energy Factor	0.95
Diameter	20 inches
Warranty	6 years
Warranty on tank	6 years
Warranty on heating element	6 years
Wattage	4500W
Power Consumption	4500 watts
Heating Element	Dual