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Troubleshooting checklist – State CSB 120 54 IFE User Manual

Page 34

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34

trouBLEshootInG ChECkLIst

ChECkLIst

Before calling for service, check the following points to see if the

cause of trouble can be identified and corrected.

Reviewing this checklist may eliminate the need of a service call and

quickly restore hot water service. See Figure 2. and Figure 3. in this

manual to identify and locate water heater components.

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.

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, the tank bottom and

elements should be cleaned. See the 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 the elements or, if necessary, follow the WATER AND

LIME SCALE REMOVAL procedure to replace the 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.

rEPLACEMEnt PArts
Call the toll free phone number listed on the warranty sheet of this

Instruction Manual for assistance in locating replacement parts.

When ordering parts, specify complete model no., serial no., (see

rating plate), quantity and name of part desired. Standard hardware

items should be purchased locally.