18
7. ANODE SHORTED
Anode
S
horted
0 days 0 hrs 0 mins ago
Error Code: CC-B
The Powered Anode is shorted to
earth ground or the tank.
The control indicates a problem
with the anode
ADVANCED
BACK
CAUSES:
•
The controller has detected a low resistance or short to
earth ground or the tank.
CHECK/ REPAIR:
•
Bent anode shorting to tank.
•
Contamination (solder, loctite, water, Etc.) between anode top and surrounding metal.
•
Power anode shorted to ground at wire connection. See Powered Anodes section shown under “No Water” on page 17
8. TEMPERATURE PROBE SHORT
ADVANCED
BACK
Temp Probe (Short)
0 days 0 hrs 0 mins ago
Error Code: 45-0
The indicated temperature Probe
may be shorted or open. Check
connector and resistance of
Probe.
CAUSES:
•
The Upper or Lower Temperature Probe appears to be
shorted (very low resistance). This fault code often means
the connector has been corroded by cleaning chemicals
or other substances.
CHECK/ REPAIR:
•
Make sure connector is clean and tight.
•
Check probe’s resistance.
•
Replace the Temperature Probe if shorted (resistance is below 390 Ohms). See Temperature Probe section below.
TEMPERATURE PROBE
This section of the Service Handbook provides information on the Temperature Probe. The Upper Temperature Probe contains the ECO
(energy cut out) and a Temperature Sensor. The Temperature Probe connects to the J9 Socket on the CCB. See
36).
ECO Hirh Temperatere Limit Switch
The ECO (energy cut out) is a high temperature limit switch designed to protect against excessively high water temperatures inside the
water heater’s storage tank. The ECO is a normally closed switch that opens on a rise in temperature. The ECO switch is located inside
the Temperature Probe (two red wires/Pins 2 & 3). See page 30 for pin layout. The ECO temperature setting is non adjustable; the
contacts open at approximately 201°F (94°C) and will close at approximately 140°F (60°C).
The Control System constantly monitors the state of the ECO switch contacts. If the ECO activates (contacts open) due to abnormally
high water temperature the Control System will lock out and display
Energy Cut Out (ECO)
on the UIM.
