TM049 27L Continuous Flow Service Instructions
REV AL
– Issued April 2019
This document is stored and maintained electronically by Rheem Technical Support.
All printed copies are deemed “uncontrolled”.
31
Displaying Maintenance Information
Without Remote Controller:
Voltages up to 240 volts will be present within the water heater, take care
not to touch wiring terminals. Use an insulated tool when operating the
DIP switch or MIN and MAX buttons.
1. Remove the front cover from water heater.
2. Switch dip switch 1 to the ON (up) position on the DIP1 set of dip switches.
3. The LED1 display at bottom right hand side of water heater will display
1E.
4. Use the MIN
button to change the left digit (0→1etc.) in the display to the
required maintenance code identified from the maintenance information
table on page 30.
5. Use the MAX
button to change the right digit (E→F etc.) in the display to the required
maintenance code identified from the maintenance information table on page 30.
6. The maintenance code and the value of that code will alternate on the LED display.
7. If required, the maintenance information can be locked and will be unable to be modified
by turning dip switch 2 to the ON (up) position on the DIP1 set of dip switches whilst dip
switch 1 is also in the ON (up) position.
8. Switch all DIP1 dip switches to the OFF (down) position to return to normal operation.
With Remote Controller:
Isolate power whilst connecting a remote controller.
1. Fit remote controller if not already fitted.
2. Restore power supply and ensure the remote controller is turned off.
3. Press the temperature increase and decrease buttons simultaneously for 3 seconds until
an audible beep is heard.
4. Use the t
emperature decrease button to change the left digit (0→1etc.) in the remote
controller display to the required maintenance code identified from the maintenance table
on page 30.
5. Use the t
emperature increase button to change the right digit (E→F etc.) in the remote
controller display to the required maintenance code identified from the maintenance table
on page 30.
6. The maintenance code and the value of that code will alternate on the LED display of the
Remote Controller.
7. Press the on/off button twice on the remote controller to cancel maintenance information.
In order for the unit to operate while in Maintenance Mode quickly press the ON/OFF button
once. The temperature will default to 50
o
but this will not be displayed so maintenance
information can be displayed. If a hot tap is opened, the unit will operate and the
“Y”
maintenance information can be viewed in real time (flow rate in litres per minute etc).
