Lochinvar 1.3, 1.5 service manual Troubleshooting

Models: 1.5 1.3 1

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Page 39
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Service Manual

 

 

 

 

 

 

 

 

 

 

 

 

 

3

Troubleshooting (continued)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 3A Troubleshooting Chart - No Display

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FAULT

CAUSE

 

 

 

CORRECTIVE ACTION

 

 

 

 

 

 

 

 

 

 

- No 120 VAC supplied to unit.

Check external line switch, fuse, or breaker.

 

 

 

 

 

Check position of ON/OFF switch. Turn switch to the

 

 

 

 

 

ON position.

 

 

 

 

 

 

 

 

• Check 120 VAC through the ON/OFF switch.

 

 

 

 

 

• Check

wiring

harness

connection

between

display

 

 

 

 

 

board

and

main

control board. Connect

 

No Display

 

 

 

harness at both points.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

- No voltage through the switch.

Replace switch.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

- Bad display board.

Replace board.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

- Bad main control board.

Replace the main control board.

 

 

 

 

 

 

 

 

 

 

- Blown fuse.

Replace fuse F3 on the main control board, see

 

 

 

 

 

page 38 of this manual.

 

 

 

 

 

 

 

 

 

 

 

 

 

- Main control board temperature set point

Review temperature setting.

 

 

 

 

satisfied.

 

 

 

 

 

 

 

 

 

No Burner

 

 

 

 

 

 

 

- Remote thermostat satisfied.

Review remote thermostat setting.

 

 

 

Operation

 

 

 

 

 

 

 

 

 

 

 

 

- Unit locked out on fault.

Consult display for specific fault.

Refer

to fault

 

 

 

 

 

descriptions on page 42 of this manual for corrective

 

 

 

 

 

actions.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

- Water heater controlled by BMS.

Check BMS parameter settings.

 

 

 

 

 

 

 

 

 

Unit Does

- Flue sensor open.

Verify that the flue sensor is located in the flue outlet.

Not Modulate

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Above 50%

 

 

Check wiring connections at the flue sensor.

 

 

 

 

 

 

 

 

 

 

 

Check the resistance of the flue sensor and compare

 

 

 

 

 

to Table 3C on page 40 of this manual.

 

 

 

 

 

 

 

 

 

 

 

 

 

39

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Lochinvar 1.3, 1.5 service manual Troubleshooting

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.

Another key characteristic of the Lochinvar 1 is its compact design, making it suitable for a variety of installation environments. Whether in a residential basement or a commercial utility room, the unit’s space-saving configuration allows for efficient use of available area without compromising on capability.

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.