Troubleshooting
6 720 680 078
(2011/09)
18
6
Troubleshooting
6.1
Replacing batteries
When batteries are weak, the low battery symbol (Fig. 6,
pos. 5) will appear on the display.
B
Remove the two screws on the back of the remote
control.
B
Open the battery housing and remove the batteries,
then replace with new AA 1.5V batteries, ensuring
they are inserted correctly.
B
Close the battery housing using the two screws.
6.2
Cleaning
Use a damp cloth to clean parts of the remote control.
Do not use abrasive or solvent-based detergents.
6.3
Troubleshooting
1. No display on remote control
B
Check for weak or dead batteries.
Remote control in sleep mode.
B
Simply press any button on the remote to bring up the
display.
2. Remote control will not activate / no number with
rotating digit
B
Ensure that you are standing directly in front of the
water heater when attempting to activate.
B
Ensure that no other device in the area, such as a
cordless phone, is operating on a frequency similar to
the remote (868 MHz) and causing interference.
B
Double check all wire connections of the remote con-
trol manual. Pay close attention to the wire connect-
ing the remote's PCB to the heater's main PCB.
3.
Remote display shows "- -" only
B
Verify the water heater's ON/OFF switch is turned to
the ON (I) position. If the water heater's display is still
blank, verify the heater is plugged properly grounded
outlet.
B
Verify there is proper voltage to the water heater.
B
Verify the remote is within the maximum distance
from the water heater of 30 meter (98 ft).
B
Ensure that no other device in the area, such as a
cordless phone, is operating on a frequency similar to
the remote (868 MHz) and causing interference
4. Error code and “
” symbol will not clear from
remote
•
Error codes cannot be reset by using the remote. All
errors must be cleared by using the reset button
on the water heater's control panel.
•
If an error code is gen erated immediately after the
installation of the remote control transceiver PCB,
ensure that the two large electrical connectors ( Fig.
5) on the main PCB are properly seated.
•
Error code may not be resettable. Consult water
heater's installation manual.
5. Remote will not memorize desired temperature set-
ting
B
Verify that the remote control "program" button is
depressed until the remote display reads "Pr".
6. Priority "
" symbol will not clear
B
Verify no hot water is being used when trying to clear
"priority" function.
B
With no hot water running, press and hold the “
”
or “
” buttons for 5 seconds on the locked out
device (remote or water heater) until the "
" sym-
bol (Fig. 6, Pos. 6) disappears.
Verify that the rubber seal is correctly fitted
between both plastic housing parts.
WARNING:
Dead batteries must be replaced. Conse-
quently, the manufacturer is not liable for
any faults or damage caused by dead bat-
teries.
Dispose of the dead batteries properly.
If not used for a few minutes, the remote's
display will go blank to save the batteries.
Large amounts of metal or concrete in the
structure may have a blocking effect on the
remote's signal. This may alter the maxi-
mum distance allowable from the water
heater.
B
Move within direct line of sight of the
water heater to see if signal will recon-
nect.
Memorization of a selected temperature
only saves to the device on which it was
originally programmed. To retrieve a mem-
orized temperature setting, you must use
the device with which it was programmed.
