Rheem Raypak 2450, Installation And Operation Manual

Page: 39 / 54

39
22. SERVICE CALL
VERIFICATION
NOTE: The Service number is located on the front of the
heater at the brand label.
Before you make a service call, first determine if the
problem is:
• Warranty Service - must have model number,
serial number and date of installation or Warranty
Registration confirmation number
• Unit operation (power supply, water flow, or time
clock adjustment)
NOTE: The MANUFACTURER IS NOT RESPONSIBLE for
these adjustments.
Power Supply
• Verify that all circuit breakers are reset and working
properly.
• If the temperature display on the control panel still
does not light, contact the installing dealer, since it
may be a power problem requiring an electrician.
Water Flow
• Verify that the pool filter is clean to provide good flow.
• Verify that valves are properly positioned to allow
adequate water flow through the unit.
Time Clock Adjustment
Verify that the time clock is set to permit the unit to run
long enough to heat properly.
Set Factory Defaults
If programming is messed up and no operation can reliably
be made, the control board can be reset to Factory Default
values as noted in Table D, E or F. This operation changes
all adjustable settings to factory default settings.
Enter the Installer/Service Mode by holding the MENU and
UP buttons for 3+ seconds. Scroll through the information
until you reach the “Installer Menu” screen - press the
UP or DOWN button until YES appears on the 2nd line.
Press the MENU button to access the additional Service
information. Continue to press the MENU button until
“Set Factory Defaults” appears on the display. Press and
hold the UP and DOWN button for 5 seconds to reset the
control to factory defaults. The display will read “Defaults
Set” when completed.
NOTE: Previous settings will be erased and are no
longer recoverable. All settings will have to re-entered
by hand to re-establish proper operation.
Service Access to Heaters
If service access to the heater is required, it is accomplished
by removing the control panel to provide a wide access
to get to (1) compressor, (2) heat exchanger, (3) TXV,
(4) reversing valve/solenoid valve (if equipped), (5) flow
switch (if equipped), and (6) sensors (water, ambient and
coil). To gain access, follow the steps below:
1. Shut off all power to the unit to avoid any possibility
of electrical shock or damage to components.
2. Remove the 5 screws securing the control panel
cover from the cabinet (2 each side and 1 in the top
panel – see Figure 11 below). Place the screws in
the recessed cups in the molded base.
Figure 11. Sheet Metal Screws to Remove Control Panel
3. Remove the multi-pin connectors from the back of
the control board (8 connectors in total) – NOTE: You
do not need to remove the PL4 connector as this is
the ribbon cable from the membrane switch mounted
on the control panel.
4. Set the control panel cover aside to reinstall when
service is completed.
5. Remove the 4 screws securing the junction box
panel to the cabinet (1 each side and 2 by Inlet/
Outlet water connections). See Figure 12 . Place the
screws in the recessed cups in the molded base.