American Water Heater ITCE3-52/80/119, STCE3-52/80/119 Fault & Alert Messages, “Temp Probe Open”

Models: ITCE3-52/80/119 COMMERCIAL ELECTRIC WATER HEATERS STCE3-52/80/119

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Fault & Alert Messages

TROUBLESHOOTING

Fault & Alert Messages

 

DISPLAYED MESSAGE

CHECK/REPAIR

 

CONDITION/INDICATES

 

 

 

 

 

 

“Temp Probe Open”

• Check the J5 plug/socket connections at the

 

(Fault Condition)

CCB ensure they are mating properly and pro-

 

 

viding good contact. Check the pins inside the

 

The control system has detected an open circuit in

J5 plug/socket for wear or damage. See CCB

 

the temperature sensor. The control system will

illustration and socket identification on pages 42

 

declare this fault condition if it senses a resistance

- 44. Replace damaged plug connectors/wiring

 

above 56,000 ohms from the temperature sensor.

harness as necessary.

 

Possible Causes:

• Check for pinched or broken wiring between the

 

Immersion Temperature Probe and the J5 plug/

 

Plug/socket connection problems

socket connection on the CCB - repair or

 

Wiring connection problems

replace damaged wiring as necessary. See

 

Defective Immersion Temperature Probe

CCB illustration and socket identification on

 

 

pages 42 - 44.

 

 

• Check the resistance of the temperature sensor

 

 

inside the Immersion Temperature Probe - see

 

 

pages 37 - 39. Replace the Immersion Temper-

 

 

ature Probe if measured resistance is above

 

 

56,000 ohms.

 

 

• Call the toll free technical support phone num-

 

 

ber on the back cover of this manual for further

 

 

assistance if the problem has not been cor-

 

 

rected after performing the procedures outlined

 

 

here.

 

 

 

 

“Temp Probe Short”

• Check for pinched or shorted wires between the

 

(Fault Condition)

J5 plug/socket connection on the CCB and the

 

 

Immersion Temperature Probe - repair or

 

The control system has detected a shorted circuit in

replace damaged wiring as necessary. See

 

the temperature sensor. The control system will

CCB illustration and socket identification on

 

declare this fault condition if it senses a resistance

pages 42 - 44.

 

below 390 ohms from the temperature sensor.

• Check the resistance of the temperature sensor

 

Possible Causes:

inside the Immersion Temperature Probe - see

 

pages 37 - 39. Replace the Immersion Temper-

 

Shorted wiring

ature Probe if measured resistance is below 390

 

Defective Immersion Temperature Probe

ohms.

 

 

• Call the toll free technical support phone num-

 

 

ber on the back cover of this manual for further

 

 

assistance if the problem has not been cor-

 

 

rected after performing the procedures outlined

 

 

here.

 

 

 

 

 

 

Servicing should only be performed by a Qualified Service Agent

68

Page 70
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American Water Heater ITCE3-52/80/119, STCE3-52/80/119 manual Fault & Alert Messages, “Temp Probe Open”, “Temp Probe Short”