Step 2:
Press the "Temperature Down" button to select the error code index, starting with the most recent error code "10".
Step 3:
Press the "Select" button to view the error code for "code 10". If there is a number displayed, note what the number is.
The label next to the water heater display will identify the code number. If no number is displayed with only a "--" in the
water heater display, then there has not been an error code for error code index 10.
No Error Code Shown
for Code Index 10
idle
Status
SELECT
idle
Status
SELECT
Operational
SET
Operational
SET
66
Error Code Index