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Troubleshooting
6 720 606 990
B Double check all wire connections
made under section 4.2 of the
remote control manual. Pay close
attention to the wire connecting 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 into a live 120VAC/ 60Htz
properly grounded outlet.
B Verify there is proper voltage to the
water heater (120VAC/60Htz).
B Verify the remote is within the
maximum distance from the water
heater of 98 feet.
B Ensure that no other device in the
area, such as a cordless phone, is
operating on a frequency similar to
the remote (915 MHz) and causing
interference
4. Error code and “ ” symbol
will not clear from remote
B Error codes cannot be reset by
using the remote. All errors must be
cleared by using the reset button
on the water heater's main
control panel
• If an error code is generated immedi-
ately after the installation of the
remote control transceiver PCB,
ensure two large electrical connec-
tors (Fig. 4) on the main PCB are
properly seated.
• Error code may not be resettable.
Consult water heater's installation
manual or www.boschhotwater
for
further troubleshooting on error
codes.
i
Large amounts of metal
or concrete in the
structure may have a
blocking effect on the
remote's signal. This
may alter the maximum
distance allowable from
the water heater.
B Move within direct
line of sight of the
water heater to see if
signal will reconnect.
6720606990-0701_(Remote control).fm Page 13 Tuesday, January 30, 2007 10:07 AM