Manuals / Lochinvar / Household Appliance / Water Heater

Lochinvar 1.3, 1.5 Automatic Reset, High Limit / HEX, Temp SW, Blower RPM’s, Too Low

Models: 1.5 1.3 1

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Service Manual

3 Troubleshooting (continued)

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

FAULT

DESCRIPTION

CORRECTIVE ACTION

 

 

 

 

 

Automatic Reset High Limit:

 

 

• 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 for

 

 

the proper piping methods for the Armor X2.

 

 

• Check voltage to water heater pump motor on a call

 

 

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

 

 

to the pump relay.

Automatic Reset

 

• Replace the pump relay if necessary.

High Limit / HEX-

 

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

Temp SW

 

heater pump is not operating, replace the pump.

(will require a manual

Either the auto-reset high limit, or the

• Check resistance of water sensors and compare to

reset once the condition

O-temp heat exchanger switch has opened.

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

has been corrected. Press

if necessary.

the RESET button on the

 

• Replace outlet sensor.

display to reset.)

 

 

 

 

 

 

 

 

HEX Temp SW:

 

 

• Check continuity across two contacts. Wires should

 

 

be connected at both poles of normally closed switch.

 

 

• Inspect the rear of the inner combustion chamber

 

 

at the burner level, for refractory breakdown/missing.

 

 

Replace the refractory if no damage to the heat

 

 

exchanger as a result of the burner, otherwise,

 

 

replace the heat exchanger.

 

 

• Faulty O-temp heat exchanger switch. Replace

 

 

switch.

 

 

 

 

 

• Vent/air intake lengths exceed the maximum allowed

 

 

lengths. Refer to Section 3 - General Venting of the

 

 

Armor X2 Installation and Operation Manual for

 

The actual fan rpm is 30% lower than what

proper lengths.

Blower RPM’s

• Check for obstruction or blockage in the vent/air

is being called for. Reference the Burners

Too Low

Screen information on page 28 of this

intake pipes or at terminations.

(will require a manual

manual.

• Check the wiring connections at the fan and at the

reset once the condition

 

main control board.

has been corrected. Press

 

• Replace the fan.

the RESET button on the

 

 

• Replace the main control board.

display to reset.)

 

 

 

 

 

Blown fuse.

• Replace fuse F4 on the control board, see page 38 of

 

this manual.

 

 

 

 

 

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Lochinvar 1.3, 1.5 service manual Automatic Reset, High Limit / HEX, Temp SW, Blower RPM’s, Too Low
Page 44 Page 46

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.