andrews 32/143 Installation Manual, Operation And Service Manual page 63

ACCESSING SERVICE 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:
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
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".
Max
Setpoint
idle
Operational
Statu
s
SELECT SET
Water
°F
Temp
idle
Operational
Status
SELECT SET
Status Service Needed
SELECT Lockout RESET
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APPENDICES
Troubleshooting
Using Control Display for Servicing the
Water Heater
"Max Setpoint"
next to Temperature
Setpoint value.
Error Code Shown
in Water Heater Display