Service Manual

Troubleshooting

Accessing Service Mode on Control Display

or models with Honeywell Integrated Control

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:

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

ELECT SET

tatus

idle

Operational

Water

Temp

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

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

SELECT Lockout RESET

Status

Servi ce Needed

Error Code Shown

in Water Heater Display

SELECT SET

Status

dle

Operational

"Max Setpoint"

next to Temperature

etpoint value.

Max

Setpoin