TM018 Raypak 131 Type A Pool & Spa Heaters REV: A
D.O.I: 8/04/2009
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23
Fault Finding Chart 1.3
Is pump operating?
YES
1.3
YES
Is controller clock set to
correct time?
Does controller display
„AUTO‟?
YES
NO
NO
1.5
NO
Controller set to „AUTO‟ mode
Controller set to manual mode
Is set point temp 1º more
than water temperature?
Is controller clock
time within programmed
time period?
Controller clock must be set for
auto mode to operate burner.
NO
YES
Controller clock time must be
within programmed time period for
auto mode to operate burner.
NO
YES
Set point temperature must be 1º
more than water temperature for
burner to operate.
NO
Does hot surface igniter
glow?
YES
Replace control board.
YES
NO
Is the water pressure or
flow switch closed?
NO
YES
5
Is there sufficient
water flow through
the heater?
NO
Can the water pressure
or flow switch be
adjusted?
YES
Fault rectified. Water pressure or
flow switch adjusted.
YES
Replace water pressure or flow
switch.
NO
Is 24 volts present at
control board terminal
marked „VALVE‟?
Replace control board.
NO
YES
Test 10A for black boards.
Test 10B for grey boards.
Min flow rate 1.3 l/sec
Max flow rate 6.9 l/sec
Refer to section on adjusting pressure
switch or adjusting flow switch
Does controller show
flame icon?
YES
1.7
NO
(1) The hot surface igniter must be checked within 18 seconds from
controller displaying flame icon and the ignition module receiving power.
If pilot ignition is not successful after 18 seconds the ignition module will
lock out and must be reset. To reset the ignition module turn controller off
by pressing and releasing the „power‟ button, wait 5 seconds then turn
controller on again by pressing and releasing the „power‟ button.
(1)
NO
YES
1.4
Does the controller
display an error
code?
Does controller display
change to show water
temp and last mode of
operation?
Replace control board.
Pump must be operating for
burner to operate.
Test 11A for black boards.
Test 11B for grey boards.
Press and release the
controller power button.
Adjust water pressure or
flow switch.