Service Manual

3 Troubleshooting

Table 3E (continued from previous page) Troubleshooting Chart - Fault Messages Displayed on Water Heater Interface

FAULT

DESCRIPTION

CORRECTIVE ACTION

 

 

 

 

 

 

• If 24 VAC is present at the main control board, check

 

 

the wiring between the main control board and the gas

 

 

valve. Replace the wiring if necessary. Do not

 

 

disconnect the wiring from the gas valve and attempt

 

 

to measure voltage at that point. The main control

 

 

board can detect if the gas valve is not connected and

Flame Lost

 

will display the Gas Valve / Connection fault.

 

 

• If 24 VAC is present, check the outlet of the valve to

While Running

 

 

ensure the valve is flowing gas. With a manometer

(cont’d)

The unit was running and lost the flame

connected to the outlet tap of the gas valve, when the

(will require a

signal. This condition occurred twice .

unit is in

the prepurge period, there

should be

a

manual reset once the

 

negative

pressure present. When

the valve

is

condition has been

 

 

energized a change in pressure should occur. If the

corrected. Press the

 

 

pressure change does not occur, the gas valve is not

RESET button on the

 

 

opening. Replace the gas valve.

 

 

display to reset.)

 

 

 

 

• Inspect flame sensor and associated wiring.

 

 

 

 

Reference page 35 of this manual for removal and

 

 

cleaning procedures. Replace if necessary.

 

 

 

• Inspect the burner. Reference page 35 of this manual

 

 

for removal and cleaning procedures. Replace if

 

 

necessary.

 

 

 

 

• Replace the main control board.

 

 

 

 

• Verify that the system is full of water and that all air

 

 

has been properly purged from the system.

 

 

• Verify that the water heater is piped properly into the

 

 

heating system. Refer to Section 6 - System Piping

 

 

of the Armor X2 Installation and Operation Manual

Manual Reset

 

for the proper piping methods for the Armor X2.

 

 

High Limit

 

• Check voltage to water heater pump motor on a call for

(will require a

 

heat. If voltage is not present, check wiring back to

manual reset once the

The outlet water temperature has exceeded

the pump relay.

condition has been

the setting of the high limit.

• Replace the pump relay if necessary.

corrected. Press the

 

• If 120 VAC is present on a call for heat and the water

RESET button on the

 

display to reset.)

 

heater pump is not operating, replace the pump.

 

 

 

 

• If the high limit has tripped, check setting of the

 

 

device.

 

 

• Check resistance of water sensors and compare to

 

 

Table 3B on page 40 of this manual. Replace sensor

 

 

if necessary.

 

 

• Replace high limit.

44

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Image 44
Lochinvar 1.5, 1.3 service manual Cont’d, Manual Reset, High Limit
Page 43 Page 45

1.5, 1.3, 1 specifications

Lochinvar 1 is a remarkable achievement in the realm of modern technology and engineering. As a powerful and efficient water heater, it has been designed to cater to a wide range of residential and commercial needs. One of the standout features of Lochinvar 1 is its advanced heating technology, which incorporates a high-efficiency condensing design. This technology allows the unit to achieve impressive energy savings by maximizing heat transfer while minimizing energy consumption.

The Lochinvar 1 utilizes a stainless steel heat exchanger that enhances durability and corrosion resistance. This not only extends the lifespan of the unit but also ensures consistent performance over time. Coupled with a user-friendly control system, users can easily adjust settings and monitor performance, enhancing overall convenience and usability.

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Safety features are integral to the Lochinvar 1, providing peace of mind for users. The unit is equipped with advanced monitoring systems that can detect irregularities and automatically shut down the system if necessary. This not only protects the equipment but also enhances the safety of the environment in which it operates.

In terms of performance, Lochinvar 1 boasts a high recovery rate, ensuring hot water is available on demand. This is particularly beneficial for settings with high water usage, allowing simultaneous operations without lag.

Moreover, the unit supports various venting options, offering flexibility during installation. Whether using traditional vertical venting or innovations like direct venting, Lochinvar 1 accommodates different building designs and local codes, making it highly versatile.

In conclusion, Lochinvar 1 epitomizes the melding of efficiency, reliability, and user-friendly technology. With its high-performance features, robust safety systems, and adaptable installation options, it stands out as a forefront player in the water heating industry, meeting the diverse needs of today's consumers and businesses alike.
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