American Water Heater 316888-004 Fault Lockout Code Description Cause Remedy Type Displayed

Page 49

Fault

 

 

Lockout

 

Code

Description

Cause

Remedy

type

Displayed

 

 

 

 

 

 

 

E15

 

Blower speed is 200RPM

 

 

 

 

below the target speed for

 

 

 

 

20 seconds.

 

 

E16

 

Blower speed is 500RPM

 

 

 

 

above the target speed for 6

 

 

 

 

seconds.

Soft

1. Check the blower wire harness.

E17

Blower speed

Machine starts or normal

 

2. Change the blower.

 

abnormal.

combustion, but Blower

 

 

 

3. Change the board.

 

 

speed = 0 for last 3sec.

 

 

 

 

 

E18

 

Have Blower’s output signal

 

 

 

 

but the Blower speed = 0 for

 

 

 

 

last 400ms.

 

 

E19

 

Blower speed stuck > 3000

Soft

 

 

 

rpm

 

 

 

 

 

E20

Proportional

Proportional valve Current <

 

1. Check the proportional gas valve

 

Minimum.

 

wire harness.

 

valve (PV) current

Soft

E21

Proportional valve Current >

2. Change the board.

 

unusual.

Maximum.

 

3. Change the gas valve assembly.

 

 

 

E22

Outlet

Outlet Temperature

 

 

 

Temperature

is < minimum defined

 

 

 

Probe is Open

temperature.

 

 

 

circuit.

 

 

 

E23

Outlet

Outlet Temperature

 

 

 

Temperature

is > maximum defined

 

 

 

Probe is Short

temperature.

 

 

 

circuit.

 

 

 

E24

Inlet Temperature

Inlet Temperature is

 

1. Check temperature probes wire

 

Probe is Open

< minimum defined

Soft

harness.

 

circuit.

temperature.

2. Replace themperature probe.

 

 

E25

Inlet Temperature

Inlet Temperature

 

3. Change the board.

 

Probe is Short

is > maximum defined

 

 

 

circuit.

temperature.

 

 

E26

Tank Temperature

Tank Temperature

 

 

 

Probe is Open

is < minimum defined

 

 

 

circuit.

temperature.

 

 

E27

Tank Temperature

Tank Temperature

 

 

 

Probe is Short

is > maximum defined

 

 

 

circuit.

temperature.

 

 

E28

Ignition failure.

After a failure to detect

 

1. Check the igniter wire harness.

 

 

the flame during ignition,

 

2. Check igniter 120Vac voltage

 

 

the control will retry the

 

supply during the ignition time.

 

 

specified number of times.

 

3. Check the ignition rod. If it looks

 

 

After the maximum failed

Soft

dirty clean it using isopropyl alcohol

 

 

attempts, this fault is

 

and a clean cloth.

 

 

declared.

 

4. Check the high voltage wiring

 

 

 

 

connection between igniter and

 

 

 

 

igniter rod for proper contact.

E29

Outlet water

Outlet water temperature <=

 

1. Check the outlet temperature probe.

 

temperature too

(setting temperature – 15°C)

Alert

2. Change the board.

 

low.

for 60 seconds after flame

 

 

 

 

 

 

detected.

 

 

 

 

TABLE 5

 

 

www.americanwaterheater.com

49

Image 49
Contents AN Odorant is Added to the GAS Used By this Water Heater Power Vent GAS ModelsTable of Contents Important Definitions Safe INSTALLATION, USE and ServiceGeneral Safety Can be triggered at any time Introduction Preparing for the InstallationPage GET to Know Your Water Heater GAS Models Replacement Parts and Deliming ProductsOperation Rough in Dimensions Installation ConsiderationsDirectly BELOW. Keep Clear of ALL Obstructions Suggested Piping Arrangement For TOP Connections Water Piping Mixing Valve UsageWater Potable Heating All models are considered Hotter Water can ScaldFacts to Consider about Location Handle Installation Earthquake Zones Page Appliances in Unconfined Spaces Combustion AIR and VentilationAppliances in Confined Spaces ALL AIR from Outdoors See Figures 12, 13 Water Piping Chemical Vapor CorrosionClosed Water Systems Thermal ExpansionHard Water TEMPERATURE-PRESSURE Relief ValveValve and Pipe Insulation if supplied GAS Piping GAS Line Purging High Altitude InstallationsFLOODING/FREEZING Filling the Water HeaterVent Pipe Termination If using 2 inch vent pipePlanning the Vent System If using 3 inch vent pipe Vent Terminal INSTALLATION, Sidewall Installation of Vent SystemCondensate Masonry Side WallsInstallation Sequence Sequence of InstallationsVent terminals supplied with heater must be used Installation of Vertical Vent System Installation of Vent SYSTEM, SidewallInitial Preparation Vent Pipe PreparationSelection of Materials Step a Recommended BRUSH* Size for Primer Cement ApplicationsStep B Step E Power VentStep F Step G Connection to Vent PipeVent Hoods MAY be Extremely HOT During Operation Filling the Water Heater Electrical ConnectionsCalibration Display Panel Operating InstructionsPage MCU Lighting Instructions For Your Safety Read Before LightingHeat Cycle Definitions State Description Temperature Regulation Temperature Probes Unique Hybrid FeaturesPage Temperature Regulation Start UP Conditions Constant Output Temperature ControlOperational Conditions Housekeeping MaintenanceVenting System Inspection Burner Operation and InspectionTEMPERATURE-PRESSURE Relief Valve Operation Anode ROD ReplacementCleaning the Inlet Water Filter MotorsFlushing the Heat Exchanger Lime BUILD- UP Cleaning the Heat EngineDraining the Tank Fault Indication and Error CodesRemarks Diagnostic DisplayCode Display Example Format Fault Lockout Code Description Cause Remedy Type Displayed Fault Lockout Code Description Cause Remedy Type Displayed Fault Lockout Code Description Cause Remedy Type Displayed Troubleshooting There is no HOT Water or When the TAP is OpenedHOT Water Turns Cold Stays ColdLeakage Checkpoints ServiceParts Identification Item # Description AB C DEF NIP/DIP/TBO/HT Replacement Parts DescriptionKIT # Page Page

316888-004 specifications

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