LAARS U.H.E. - Service Manual - Manual (Page 41)

U.H.E Service Manual Page 41
Powered Anode Replacement UHE100T399 models only
Powered Anode Replacement for UHE100T399 only
The powered anode control module is located on the right vertical side of the control panel inside the surround panel.
The control has a LED indicator light to show the status of operation. When the tank is filled with water and the power
supply is on to the water heater, the light should have a steady green glow to indicate that protection current is flowing
and operating normally. If the indicator light is not glowing, the power supply to the water heater or powered anode
system is disconnected.
Step 1. Check the power supply or wire connections to the powered anode control.
Step 2. Indicator light diagnostic codes:
a) If the control is flashing red, then there is a malfunction with the powered anode system.
Make sure there are no bare spots in the wire insulation to the powered
anode rods.
Step 3. Check all electrical connections. The powered anode rods are insulated from the
water heater tank in the bushing.
a) With an ohmeter, check continuity between the powered anode terminal and the
bushing. There should not be continuity. If there is continuity, replace the powered
anode assembly.
Volt meter set
to OHM setting
WARNING
Heater components may be HOT when performing the following steps in this procedure.
Take necessary precaution to prevent personal injury.
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