Spa Builders SC-CF, Service Manual

Page: 47 / 68

46 SC-CF & SC-MP Service Manual
Pump 1 Does Not Work!
If Pump 1 is not working, carry out the following tests to correct
the problem:
To increase the life of the relay, we use a "snubber" circuit on the pump relay.
With this type of circuit, if no pump is connected to an output and relays are open,
the voltmeter will continue reading around 60 volts. This is normal.
It is important to measure voltage when pump is connected to pack.
Power must remain On.
4• If "Pump 1" indicator does not appear,
use a spare keypad to verify if keypad
is defective.
If it is, replace keypad.
If not, replace Spa Pack.
5• If "Pump 1" indicator appears when
Pump 1 key is pressed, verify if pump
works in either speed.
1• Check for an error condition on
keypad display. If there is one,
refer to specific section indicated
by the error condition.
Jumpers
2• Also, verify that Jumper #3 is
set properly for 1 or 2 pumps
(refer to page 10 for more info).
"Pump 1"
indicator
3• Verify if "Pump 1" indicator appears
on keypad display when you press
Pump 1 key.