Chapter 6 - Troubleshooting

No reading on oxygen concentration meter.

Remedial Action

First: You may have an exhausted fuel cell in the oxygen sensor. Replace the fuel cell. Order P/N 853396 and refer to Page 68 for replacement instructions.

CAUTION: Before working on the electrical system, make sure the unit is Off and the electric power cord un-plugged.

Second: The spiral cord between the fuel cell and the oxygen concentration meter may be loose. Check the rear of the oxygen concentration meter and make sure the spiral cord is firmly connected.

Third: One of the other wires on the rear of the oxygen concentration meter may be loose. Make sure that all wires are in place and tight.

Fourth: The oxygen sensor may be bad. Replace the sensor. Order P/N 853395 and refer to Page 88 for replacement instructions.

Fifth: The oxygen concentration meter may be bad. Replace the meter. Order P/N 853436 and refer to Page 92

for replacement instructions.

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SSCI - Suburban Surgical Company, Inc.

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Suburban Mfg 12019-01-NGFREP manual No reading on oxygen concentration meter
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12019-01-NGFREP specifications

Suburban Mfg 12019-01-NGFREP is a well-regarded water heater that stands out in the market for its reliability and efficiency. Designed with the modern consumer in mind, it caters effectively to both residential and light commercial applications. This water heater is particularly recognized for its robust construction, versatile installation options, and advanced technological features.

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In summary, Suburban Mfg 12019-01-NGFREP is a versatile, efficient, and reliable water heater that is tailored to meet modern demands. Its combination of dual-fuel operation, high energy efficiency, compact design, and safety features makes it a smart investment for households seeking comfort and performance in their water heating solutions.
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