Service Manual

Accessing Service Mode on Control Display
For 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
SELECT SET
Status
°F
idle
Operational
Wate
r
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”.
SELECTLockout RESET
Status
Service Needed
Error Code Shown
in Water Heater Display
12
SELECTSE
T
Status
idle
Operational
%
"Max Setpoint"
next to Temperature
Setpoint value.
&
Max
Setpoin
t
12