American Water Heater 6510319 installation instructions Replacing the Thermocouple

Page 22

Replacing the Thermocouple

Important: Use only a factory authorized Flame Guard® Safety System thermocouple for replacement.

1.Remove the manifold assembly as directed previously.

2.Remove the retainer clip from the back of the two piece wire connector and remove the two piece wire connector from the manifold door (Figure 24).

3.Pull the thermocouple from the pilot assembly (Figures 28A and 28B).

Be careful not to bend or alter the position of the pilot assembly components.

Notice: The thermocouple contains a thermal fuse, which is used as a safety device.

4.Push the new thermocouple through the holes in the pilot bracket. Insert the thermocouple tube into the holes provided in the pilot assembly until it clicks into place.

5.Position the new thermocouple through the larger opening of the two piece wire connector (Figure 24). Note: Thermocouple contains a thermal fuse. Do not bend in the location shown below (Figure 25). Be sure igniter wire is positioned through the small opening of the two piece wire connector.

6.See “Replacing Manifold Assembly” Page 23.

Figure 24

Other fittings

Two Piece Wire

not shown

Connector

for clarity

Assembly

Igniter

Wire

Retainer Clip

Manifold

Door

Thermocouple

Two Piece

Wire Connector

Figure 25

Thermocouple

Assembly

Notice:

Thermocouple

must not be bent

in this location.

External Inspection & Cleaning of the Flame-trap

Although not likely to occur, if debris collects on the Flame-trap, use a vacuum, compressed air, or a soft bristle brush to remove it. Note: If unable to inspect or clean the flame trap from underneath, follow the “Cleaning the Combustion Chamber and Flame-trap” instructions on page 23.

Figure 26

Flame-trap visual inspection

Flashlight

Mirror

Mirror

22

Image 22
Contents Installation Instructions Use & Care Guide Table Of Contents Consumer Responsibilities Consumer InformationUnpacking the Water Heater Location Requirements Site LocationClearances and Accessibility Gas Requirements Gas Pressure TestingGas Supply Gas PressureCombustion Air Supply and Ventilation Natural Gas Pipe Capacity Table Cu. Ft./HrConfined Space Unconfined SpaceAll Air from Inside the Building All Air from Outdoors Louvers and GrillesVent Pipe System Drafthood InstallationVent Connectors Vent Pipe SizeChimney Connection Vertical Exhaust Gas VentPiping Installation Water System PipingClosed System/Thermal Expansion Temperature and Pressure Relief Valve Temperature & Pressure Relief ValveSpecial Applications Solar InstallationCombination Space Heating/Potable Water System Installation Checklist Lighting Instructions G. Bottled Propane ModelsChecking the Draft Water Temperature RegulationBurn Hazard Do not touch vent Doing so can result in burns Operational Conditions Temperature and Pressure Relief Valve Routine Preventative MaintenanceDraining and Flushing Removing the Burner from the Manifold Assembly Replacement PartsRemoving the Manifold Assembly Natural Gas Burner Low NoxExternal Inspection & Cleaning of the Flame-trap Replacing the ThermocoupleCleaning the Combustion Chamber and Flame-trap Replacing the Manifold AssemblyPiezoelectric Igniter System Testing the Igniter SystemRemoving and Replacing the Gas Control Valve/Thermostat Air Shutter adjustment for Flame Guard L.P.-30T only Troubleshooting Chart Flame Guard Safety System Operational ChecklistTroubleshooting Chart Problem Possible Causes Corrective ActionRepair Parts Illustration Repair Parts ListListed Parts Kits and Illustrations