Service Manual

Troubleshooting

This 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 Service

Mode, follow the steps that follow.

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 the next mode.

The following is the sequence of modes available in “Service Mode” by pressing the “Select” button:

Error Code Number (Display/Reset). This is shown if there is an operating error in the “User Mode.”