Lochinvar 1.3 Flow Switch, Condensate, Drain Blocked, Flame out, Gas Valve, Connection, Light

Page 42

Service Manual

3 Troubleshooting

Table 3E Troubleshooting Chart - Fault Messages Displayed on Water Heater Interface

FAULT

DESCRIPTION

CORRECTIVE ACTION

 

 

 

 

 

 

• Check water heater pump operation on a call for heat.

Flow Switch/

 

• Check for closed valves or obstructions in the water

LWCO

Either the flow switch or the optional AUX

heater piping.

 

• Verify system is full of water and all air has been

(will require a manual

switch is not making.

reset once condition has

 

purged from the system.

 

been corrected. Press

 

• Check for loose or misplaced jumpers if flow switch is

the RESET button on

 

not installed.

 

the display to reset.)

 

 

 

 

Blown fuse.

• Replace fuse F2 on the control board, see page 38 of

 

this manual.

 

 

 

 

Condensate

 

• Check condensate tube from unit to floor drain for

 

proper installation and obstructions.

 

Drain Blocked

 

 

The blocked drain switch has detected

• Inspect condensate trap for blockage. Clean if

(will require a manual

reset once condition has

excessive condensate build up inside the

necessary.

 

been corrected. Press

unit.

• Check for loose wiring connection at wire harness

the RESET button on

 

plug.

 

the display to reset.)

 

• Bad blocked drain switch. Replace switch.

 

 

 

 

 

 

 

 

Flame out of

 

• Check supply voltage for proper polarity.

 

Sequence

 

• Check external wiring for voltage feedback.

 

(will require a manual

The flame detector circuit is seeing a flame

 

• Check the flame rod and make sure it is clean.

reset once the condition

signal while no flame is present.

has been corrected.

 

• Check the internal wiring for bad connections.

 

Press the RESET button

 

• Replace main control board.

 

on the display to reset.)

 

 

 

 

 

 

Gas Valve /

 

• Check wiring harness connection at the gas valve and

Connection

 

 

at the main control board.

 

(will require a manual

The main control board did not detect the

 

• Replace the gas valve wire harness.

 

reset once the condition

 

gas valve.

 

• Replace the gas valve.

 

has been corrected.

 

 

Press the RESET button

 

• Replace the main control board.

 

on the display to reset.)

 

 

 

 

 

 

 

• Inspect spark electrode and associated wiring for

 

 

damage and connection. Reference page 35 of this

 

 

manual for removal and cleaning procedures.

 

 

Replace if necessary.

 

 

 

• Check for proper electrical grounding of the unit.

 

 

• Check incoming supply gas pressure. Natural gas

Burner Did Not

 

pressures should be between 4 - 14 inches w.c.

 

(1.0 - 3.5 kPa) and LP gas pressures should be

Light

 

between 8 - 14 inches w.c. (2.0 - 3.2 kPa).

Refer

(will require a manual

The unit has failed to prove main burner

to Section 7 - Gas Connections of the Armor X2

reset once the condition

ignition. It will require a manual reset before

Installation and Operation Manual for detailed

has been corrected.

attempting to fire again.

information concerning the gas supply.

 

Press the RESET button

 

• Verify that the tube from the gas valve

to the

on the display to reset.)

 

air inlet is connected and is not damaged.

 

 

 

• Verify that the vent/air intake pipes are correctly

 

 

installed and that there are no obstructions.

 

 

 

• Check for 24 VAC to the gas valve at the 2-pin

 

 

connection on the side of the main control board

 

 

during the ignition attempt. If no voltage is present,

 

 

replace the main control board.

 

42

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Contents Models 1.0, 1.3, Contents Handling ceramic fiber materials Niosh stated First AidService MaintenanceTroubleshooting Armor X2 display Control inputs Primary Smart Control ModuleSecondary Smart Touch Control Module Primary Control outputsGeneral Operation How the water heater operatesSequence of operation Sequence of operation Sequence of operationThis table lists the parameters and where to access them Parameter tableBMS Viewable and changeable control parameters Status ScreenService Details Screen Service Main Screen Setup Screen Service/Setup Parameters Screen Service Set Point Parameters Screen Night Setback Parameters Screen Cascade Parameters Screen Cascade Operation10Vdc BMS Parameters Screen 10Vdc OperationService Cascade Screen Service Temps Screen Burners Screen Graph Select Screen History Screen Service Mode Screen Maintenance Maintenance and annual startup Inspect water heater area Address reported problemsClean condensate trap Inspect water heater interiorFlue vent system and air piping Check water systemCheck expansion tank Check water heater relief valve Check control settings Check ignition ground wiringCheck all water heater wiring Check flame signalCleaning water heater heat exchanger Check Delta TOiled bearing circulators Troubleshooting Alarm ScreenBefore troubleshooting Check the followingCheck control module fuses Troubleshooting Checking temperature sensors Temperature ResistanceFault Cause Corrective Action Drain Blocked Flow SwitchCondensate Flame outLight cont’d Flame LostWhile Running Manual Reset Cont’dHigh Limit Temp SW Automatic ResetHigh Limit / HEX Blower RPM’sSensor Open Louver Proving SwitchToo High Sensor ShortedLow Resets Try LaterAir Flow Too Flap ValveWriting to Internal FaultNo Error Stored MemosOr Obstruction Combustion Analysis ProcedureGas Valve Adjustment Gas Supply PressureGas valve adjustment procedure ModelModels 1.3
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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.
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