6 720 606 990 (2014/06)
Remote Control
Remote control installation for: GWH 635 ES/GWH 635 ESO/250SX/250SXO/
▶ Remove the other protective paper and attach the remote
control PCB as shown in Fig. 6.
Fig. 5
Support correct position
▶ Use the supplied cable to connect between the main PCB
and the remote control PCB as shown in Fig. 6.
6720606990-05.2JS
Remote PCB
Support
Cable
connections
Fig. 6
▶ Replace the control unit cover with the 4 Phillips head
screws (Fig. 4, [1]).
▶ Slide control unit back into heater.
▶ Plug 2 yellow electrode wires from the top of the control
unit back onto the ignition electrodes. Ensure all
connections are secure and tight (Fig. 2, [3]).
Wire polarity does not matter on the electrode
wires.
▶ Pull end of power cord to take up excess slack and tighten
retaining nut on the bottom of the heater.
▶ Reinstall the two electrical strip connectors onto the PCB.
The larger connector connects to the lower connection on
the PCB. Reseat the rubber seals for both connectors.
▶ Replace the control unit auxiliary cover (Fig. 2, [4]).
▶ Replace front retaining bar using 5 Phillips head screws.
(Fig. 2, [1]).
4.2
Remote control activation
Before the remote control will work, it must be
activated using the procedure described
below with the operator standing in front of the
appliance.
The remote control activation instructions vary based on the
version of control board installed in your heater.
To determine the control board version in the water heater:
▶ Turn power switch on the water heater to the off position
(O).
▶ When turning power switch to the on position, note the first
two letters that appear on the display (should be AF or SU).
▶ If the letters are AF, follow section 4.2.1.
For SU, follow section 4.2.2.
4.2.1 AF board
▶ Connect power to heater.
▶ Move the power switch on the appliance to the off position
(0).
▶ On heater control panel press and hold Program key
or
while turning on the power switch (I).
Release program key when LCD displays “188”.
LCD shows “P2”. If not, repeat previous step.
▶ Select “P3” using buttons
and
on heater.
▶ Press and hold Program key
or
again for 1
sec.
LCD shows one number and one rotating digit. If not, repeat
previous step.
The number represents the remote control which is to be
registered, the first remote control will be registered with
number “0”, the second with number “1” and so on.
The rotating digit shows that the electronics is expecting a
registration. If the LCD fails to show a number and rotating digit
after repeated attempts, double check the wire connections
made in section 4.1.
▶ Hold remote control in front of the control panel on the
heater and simultaneously press remote control buttons
and
until the temperature indication is shown
on the remote control LCD.
▶ Switch power switch on the appliance to the "OFF" (0)
position and then back "ON" (I).
▶ Press buttons
or
in order to reach desired
temperature.
New remote control is programmed.
Summary of Contents for Remote Control
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