TROUBLESHOOTING

TEST 3: CONTINUITY CHECK OF HIGH LIMIT (ECO)

Conditions:

Power On – No Hot Water

Red, heater control “Call for Heat” LED – on

Red ignition control board diagnostic LED – 4 Flashes

Note LED Flash Code before resetting water heater control.

See Ignition Control Board: Error Codes.

Turn Power OFF.

Figure 22

 

Continuity check of ECO

TEST 3

(energy cut-off, high limit)

Black to Black wires of upper probe.

 

 

Power is off.

IF

Then

continuity is indicated

opens at 203° F; closes at 193° F. If water is below 193° F, continuity is correct.

(ZERO “0.0” Resistance)

 

continuity is not present

replace ECO sensor if water temperature is below 193° F.

(meter reads “0.L”)

 

water is less than 120° F

• reset status LED should be on.

 

• replace heater control if control will not manually reset.

Servicing should only be performed by a Qualified Service Agent

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American Water Heater (A)BCG385T500-8N, (A)BCG38T500-8P manual Test 3 Continuity Check of High Limit ECO

(A)BCG38T500-8P, (A)BCG385T500-8N specifications

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