AdvantagePlus Fault Tree Troubleshooting
1706.doc
4
Fill unit with cold water. Recycle power and attempt to relight burner.
2. Is the ECO activated?
(Verify the water
temperature in the tank
by pressing the red
button on the display.)
Yes
No
Unit appears to be fine. Recycle power.
ECO will trip at 200
0
F and automatically reset when the water
cools to 160
0
F.
Measure the water temperature from the T&P valve. If the water
temp exceeds 160
0
F, then flush cold water thru the tank.
Recycle power.
3. Does the ECO have
continuity?
Yes
No
Replace ECO/Temp probe
Disconnect CN3. Check continuity of both red wires thru the
ECO/Temp Probe.
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