Lochinvar 1.3 service manual Light cont’d, Flame Lost, While Running

Page 48

Service Manual

3 Troubleshooting

Table 3F (continued from previous page) Troubleshooting Chart - Fault Messages Displayed on Boiler 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

 

 

will display the Gas Valve / Connection fault.

 

 

 

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

Burner Did Not

 

ensure the valve is flowing gas. With a manometer

 

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

Light (cont’d)

 

The unit has failed to prove main burner

unit is in the prepurge period, there should be a

(will require a manual

negative pressure present. When the valve is

reset once the condition

ignition after one attempt. It will require a

energized a change in pressure should occur. If the

has been corrected.

manual reset before attempting to fire again.

pressure change does not occur, the gas valve is not

Press the RESET button

 

 

opening. Replace the gas valve.

 

 

 

 

on the display to reset.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Inspect flame sensor and associated wiring.

 

 

Reference page 39 of this manual for removal and

 

 

cleaning procedures. Replace if necessary.

 

 

 

• Inspect the burner. Reference page 39 of this manual

 

 

for removal and cleaning procedures. Replace if

 

 

necessary.

 

 

 

 

 

 

 

• Replace the main control board.

 

 

 

 

 

 

 

 

 

• Inspect spark electrode and associated wiring for

 

 

damage and connection. Reference page 39 of this

 

 

manual for removal and cleaning procedures.

 

 

Replace if necessary.

 

 

 

 

 

 

• Check for proper electrical grounding of unit.

 

 

 

• Check incoming supply gas pressure. Natural gas

 

 

pressures should be between 4 -

14

inches

w.c.

Flame Lost

 

(1.0

- 3.5

kPa) and LP gas pressures

should be

 

between 8

- 14 inches w.c.

(2.0

-

3.2

kPa).

While Running

 

The unit was running and lost the flame

Refer to Section 6 - Gas Connections of the SYNC

(will require a manual

Installation and Operation Manual for detailed

reset once the condition

signal. This condition occurred twice .

information concerning the gas supply.

 

 

 

has been corrected.

 

 

 

 

 

 

 

 

 

 

 

 

Press the RESET button

 

• Verify that the plastic hose from the gas valve to the air

on the display to reset.)

 

 

inlet is connected and is not damaged.

 

 

 

 

 

 

 

 

 

 

• Verify that the vent/air intake pipes are installed

 

 

correctly and 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.

 

 

 

 

 

 

 

 

 

 

 

 

 

48

Page 47 Page 49
Image 48
Page 47 Page 49
Contents Models 1.0, 1.3, Contents Handling ceramic fiber materials Niosh stated First AidService MaintenanceTroubleshooting Service Near boiler pipingSync display Control inputs BoardSecondary Smart Touch Control Module Primary Control outputsGeneral Operation How the boiler operatesHow the control module operates Sequence of operationSequence of operation Sequence of operation space heating and HWThis table lists the parameters and where to access them Parameter tableOutdoor Reset Viewable and changeable control parameters Status ScreenService Details Screen Service Main Screen Setup Screen Service/Setup Parameters Screen Service Set Point Parameters Screen Outdoor Reset Parameters Screen Service Night Setback Parameters Screen Cascade Parameters Screen Cascade OperationPumps Parameters Screen 10Vdc 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 Address reported problems Clean condensate trapInspect boiler area Inspect boiler interiorFlue vent system and air piping Check water systemCheck expansion tank Check boiler relief valve Check ignition ground wiring Check all boiler wiringCheck control settings Inspect ignition and flame sense electrodesCheck flame signal Cleaning boiler heat exchangerReview with owner Test procedure Test low water flow conditionsTroubleshooting Alarm ScreenBefore troubleshooting Check the followingCheck control module fuses No Display No BurnerOperation Unit DoesChecking temperature sensors Temperature ResistanceNoisy No PumpOperation Boiler Pump System PumpFlow Switch CondensateDrain Blocked Flame outLight cont’d Flame LostWhile Running Troubleshooting Automatic Reset High Limit / HEXTemp SW Blower RPM’sLouver Proving Switch Too HighSensor Open Sensor ShortedResets Try Later Air Flow TooLow Flap ValveInternal Fault No Error StoredWriting to MemosCombustion Analysis Procedure Gas Valve AdjustmentOr Obstruction Gas Supply PressureGas valve adjustment procedure ModelModels 1.3
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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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