Check Control Settings - A.O. Smith 400 - 2100 Installation & Operation Manual

Genesis water heater

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Table Of Contents

Table of Contents

Maintenance

Check relief valve

1. Inspect the relief valve and lift the lever to verify flow. Before

operating any relief valve, ensure that it is piped with its

discharge in a safe area to avoid severe scald potential. Read

Section 4 - Water Connections of the Genesis Installation and

Operation Manual before proceeding further.

Safety relief valves should be re-inspected

WARNING

AT LEAST ONCE EVERY THREE YEARS,

by a licensed plumbing contractor or

authorized inspection agency, to ensure

that the product has not been affected by

corrosive water conditions and to ensure

that the valve and discharge line have not

been altered or tampered with illegally.

Certain naturally occurring conditions may

corrode the valve or its components over

time, rendering the valve inoperative. Such

conditions are not detectable unless the

valve and its components are physically

removed and inspected. This inspection

must only be conducted by a plumbing

contractor or authorized inspection agency

– not by the owner. Failure to re-inspect the

water heater relief valve as directed could

result in unsafe pressure buildup, which can

result in severe personal injury, death, or

substantial property damage.

Following installation, the valve lever must

WARNING

be operated AT LEAST ONCE A YEAR to

ensure that waterways are clear. Certain

naturally occurring mineral deposits may

adhere to the valve, rendering it inoperative.

When manually operating the lever, water

will discharge and precautions must be taken

to avoid contact with hot water and to avoid

water damage. Before operating lever, check

to see that a discharge line is connected to

this valve directing the flow of hot water

from the valve to a proper place of disposal.

Otherwise severe personal injury may result.

If no water flows, valve is inoperative. Shut

down the appliance until a new relief valve

has been installed.

2. After following the above warning directions, if the relief

valve weeps or will not seat properly, replace the relief valve.

Ensure that the reason for relief valve weeping is the valve

and not over-pressurization of the system due to expansion

tank waterlogging or undersizing.

(continued)

Installation & Operation Manual

Inspect/replace hot surface igniter

This unit uses a proven control module and a hot surface

igniter. The control module is not repairable. Any modification

or repairs will invalidate the warranty.

Do not attempt to repair a faulty hot surface

WARNING

igniter or control module. Any modification

or repairs may create hazardous conditions

that result in property damage, personal

injury, fire, explosion and/or toxic gases.

A faulty hot surface igniter or control module must be replaced

with an identical part. A specification igniter and control

module for this specific unit is available from your local

distributor. Do not use general purpose field replacement

control modules or igniters.

Ignition system checkout

Turn off gas supply to unit.

Turn electric power on.

Adjust the setpoint targets on the temperature control to a

setting above water temperature or to the highest safe

setting.

The igniter will cycle on trial for ignition.

The ignition module will lock out and turn the alarm

light on.

Adjust the Stage Differential and Boil Max to

the desired settings.

Turn on gas supply.

Press the RESET button on the panel to reset the ignition

module.

If ignition system fails to operate properly, repair work

must be performed by a qualified service person or

installer.

Check all wiring

Inspect all wiring, making sure wires are in good condition and

securely attached.