SYMPTOM PROBABLE CAUS E CORRECTIVE ACTION

No Hot Water

1.N o Power to heater.
2.Loose wireconnections.
3.I noperative upper heating el ement.
4.I noperative upper thermo stat.
5. Open ECO.
1.I noperative lower heati ng element.
2.T hermostat(s) set to low .
3. Inoperative thermo stat(s).
4. Loose wireconnection.
5.S ediment or lime build up on el ement(s).
6.H igh demand period.
7. Undersized heater.
8.V ery cold inlet water to heate r.
9.Plumbing connections reversed.
10. Damaged dip tube.

Not Enough Hot

Water

Slow Hot Water

Recovery

1.S ediment or lime build up on el ement(s).
2. Loose wireconnections.
3. Inoperative thermo stat(s).
4.D erated heating element in stalled.

Over Heated

Water or

Continues

Operation

1.T hermostat not in contact wit h tank.
2.G rounded heating element (s).
3.T hermostat set to high.
4. Inoperative thermo stat(s).
5. Inoperative ECO.
6.U ndersized water heater .
1.Check fuses or circuit breake rs in service
panel.
2. Check all wire c onnections.
3. Checkheating element(s).Replace as
needed.
4.Check thermostat(s) opera tion. Replace as
needed.
5. Check ECO. Reset or replac e
thermostat(s) as needed.
1. Check heating element(s) ,r eplace as
needed.
2. Increase thermostat sett ing.
3. Check thermostat(s), r eplace as needed.
4. Check all wire c onnection.
5. Remove heating element (s) and check for
lime build up.
6. Reducedemand.
7. Replace with larger heater .
8. Temper water to heater.
9. Correct plumbing connec tions.
10. Check dip tube, replace as ne eded.
1. Remove heating element (s) and check for
lime build up.
2. Check all wire c onnections.
3. Check thermostat(s), r eplace as needed.
4. Check terminal b lock of element f or proper
voltageand wattage rating.
1. Position thermostat flush with tank surface.
2. Checkheating element(s).Replace as
needed.
3. Adjust thermostat(s) t o desired setting.
4. Check thermostat(s), r eplace as needed.
5. Check ECO, replace thermo stat as
needed.
6. Replace with larger heater .

SERVICE

PROCEDURE

3. See Service Procedure
RE-II,Page 15.
4.See Service Procedure
RE-III, Page 16.
5. See Service Procedure
RE-I, Page 14.
1. See Service Procedure
RE-II,Page 15.
3. See Service Procedure
RE-III, Page 16.
5. See Service Procedure
RE-VI, Page34.
10. See Service Procedure
RE-VII, Page 35.
1. See Service Procedure
RE-VI, Page34.
3. See Service Procedure
RE-III, Page 16 .
1. See Service Procedure
RE-V, Page 33.
2. See Service Procedure
RE-II,Page 15.
4. See Service Procedure
RE-III, Page 16 .
5. See Service Procedure
RE-I, Page 14.

Page 13

Noisy (singing or

hissing) Elements

1. Lime formation on elements. 1. Remove and clean heating e lements.
Replace as needed.
1. See Service Procedure
RE-VI, Page 34 .

TROUBLESHOOTING

Quick Step Plan to Hot Water
1. TURN OFF power to water heater and checkall wire
connections to insure they are tight and corrosion free.
2. Turn power “ON” and determine that service voltage is
present, and the high limit (ECO) has not actuated
(see procedure on page 14).
3.Check for inoperative heating element (see procedure on page 15).
4. Check for proper thermostat operation (see procedures beginning on page 16). NOTE:Thermostat testing procedures
assume items 2 and 3 above are in working order.
WARNING

High voltage exposure. Use caution when

making voltage checks to avoid personal

injury.

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