Troubleshooting Checklist; Checklist - State Water Heaters 100 Series Instruction Manual

checklIst

not enouGh or no hot water
1. Be certain the electrical disconnect switch serving the water
heater is in the ON position.
2. Check the fuses.
• The electrical disconnect switch usually contains fuses.
• The heater has fusing.
3. If the water was excessively hot, and is now cold, the high limit
switch may have activated.
• See the Temperature Regulation section of this manual for more
information on how to reset the ECO high limit controls.
4. The capacity of the heater may have been exceeded by a large
demand for hot water.
• Large demands require a recovery period to restore water
temperature.
5. Cooler incoming water temperature will lengthen the time
required to heat water to the desired temperature.
6. Look for hot water leakage.
7. Sediment or pipe scale may be affecting water heater operation.

trouBleshootInG checklIst

aBnorMal sounds
1. Sediment or lime scale accumulations on the elements causes
sizzling and hissing noises when the heater is operating.
• The sounds are normal, however, tank bottom and elements should
be cleaned. See Maintenance section of this manual.
2. Some of the electrical components of the water heater make
sounds which are normal.
• Contactors will "click" or snap as the heater starts and stops.
• Transformers and contacts often hum.
water leakaGe Is suspected
Refer to Leakage Checkpoint on the following page.
1. Check to see if the heater drain valve is tightly closed.
2. If the outlet of the relief valve is leaking it may represent:
• Excessive water temperature.
• Faulty relief valve.
• Excessive water pressure.
3. Excessive water pressure is the most common cause of relief
valve leakage. It is often caused by a "closed system". See
"Closed Water Systems" and "Thermal Expansion" in the
Installation section of this manual for more information.
4. Examine the area around the element for gasket leakage.
• Tighten elements or, if necessary, follow WATER AND LIME SCALE
REMOVAL procedure to replace gaskets.
If you cannot IdentIfy or correct the source of
MalfunctIon
1. Turn the power supply to the water heater off.
2. Close the supply water inlet valve to the heater.
3. Contact a Qualified Service Agency in your area. Call the toll free
phone number on the back cover of this Instruction Manual for
assistance in locating a service agency in your area.
replaceMent parts
Call the toll free phone number on the back cover of this Instruction
Manual for assistance in locating replacement parts. When ordering
parts, specify the complete model number, serial number, (see rating
plate), quantity and name of the part desired. Standard hardware
items should be purchased locally.
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