![TROUBLESHOOTING GUIDE](/images/new-backgrounds/48112/4811245x1.webp)
TROUBLESHOOTING GUIDE
Start Up Conditions
Thermal Expansion
Water supply system may, because of such events as high line pressure, frequent
The water within the water heater tank expands as it is heated and increases the pressure of the water system. If the relieving point of water heater’s
It is recommended that any devices installed which could create a closed system have a
FIGURE 26.
FIGURE 26A.
Thermal Expansion Tank Specifications
| Tank | Dimensions | Pipe | ||
Model | Capacity | in Inches | Fitting | ||
Number | In Gallons | Diameter | Length |
| On Tank |
153.331050 | 5 | 11 (279 mm) | 3/4” Male | ||
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NOTE: Expansion tanks are
Strange Sounds
Possible noises due to expansion and contraction of some metal parts during periods of
Condensation causes sizzling and popping within the burner area during heating and cooling periods and should be considered normal. See Condensation section.
Draft Hood Operation
Check draft hood operation by performing a worst case depressurization of the building. With all doors and windows closed, and with all air handling equipment and exhaust fans operating such as furnaces, clothes dryers, range hoods and bathroom fans, a match flame should still be drawn into the draft hood of the water heater with its burner firing. If the flame is not drawn toward the draft hood, shut off water heater and make necessary air supply changes to correct.
Condensation
Whenever the water heater is filled with cold water, some condensate will form while the burner is on. A water heater may appear to be leaking when in fact the water is condensation. This usually happens when:
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