Troubleshooting Error Codes
Error A017 Flue High Flue Temp
This error code means the combustion gases at exhaust tee at the bottom of
the tank are too hot. The sensor trips at 160
0
F and the alarm cannot be
cleared until the sensor temperature is below 155
0
F . Things to check:
• Make sure the white wires are attached to the sensor.
• Check the PVC elbow for signs of disfigurement and/or discoloration
caused by heat.
• Make sure the Molex at location P2 Pins 1 and 2 on the control board
is tight, all wires are secure, and the pins on the control board are not
bent/broken.
• Disconnect the 2 white wires from the flue gas sensor and check
the ohms reading across the two spade terminals on the sensor.
Using the chart below, the temperature reading should be between
ambient air temperature and no more than 160 degrees.
• If the ohms reading on sensor is within the required temperature
range and the error will not clear, cycle power off to the unit.
Reconnect the white wire back the flue sensor. Disconnect the P2
harness from the control board and check the ohms reading across
the white wires. The reading should be about the same as reading
you got on the sensor spade terminal. If the readings do not
coincide, replace the control wiring harness.
• If all reading on sensor and wiring check good, replace the ignition
control board. board.
• If the sensor is reading open or outside of specified temperature
range, wait 5 minutes and recheck. If sensor is still outside of range,
replace sensor.
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