Installation / Operation Instruction Manual

40
Additional Display Features
Accessing Diagnostic Mode on the Water Heater Display
(FOR SERVICE PERSONNEL ONLY)
The display has a “Service Mode” for changing the maximum setpoint and accessing information in aiding servicing of the
water heater. This procedure is for service and installation personnel only. To enter the Service Mode, follow the steps
illustrated below:
WARNING
The following procedure is for service and installation personnel only. Resetting lockout conditions
without correcting the malfunction can result in a hazardous condition.
Step 1: Press “Select” and “Temperature Up” buttons together and hold for 3 seconds until “Max Setpoint” is
shown in the display.
Step 2: Pressing “Select” button will change display to next mode
NOTICE
Approximately 12 minutes after the last button press, the display will automatically return to the “User Mode”.
Simultaneously pressing the “Select” and “Temperature Up” buttons will switch the display immediately to the “User
Mode”.
SELECT
SET
Status
°F
idle
Operational
Water
Temp

SELECT
SET
Status
idle
Operational

Max
Setpoint
°F
“Max Setpoint” next
to Temperature
Setpoint value.