FLO Flow Chart
If FLO error condition occurs (problem with the pressure switch: pump is
on but no water pressure detected), follow Troubleshooting Flow Chart
below to identify the problem:
Is pump
working?
Refer to "Pump not
Working" section.
Remove
anything
obstructing
filter. Clear
any air locks
and verify
water valves.
Verify if
pressure switch
cable is properly
connected
to pressure
switch and
board.
There must be adequate water
in spa for normal use.
yes
no
Is anything limiting
flow of water into pipes?
yes
no
Is it a new
installation
(less than
two years)?
Replace
pressure switch.
Adjust
pressure switch.
Replace
board.
Ensure flow of
water through heater and
short two pressure
switch terminals with a jumper.
Does FLO
error condition
persist?
yes
no
yes
no
Ensure circulation pump jumper
is set properly (see Jumper Section).
25
MC-MP Service Manual
Summary of Contents for MC-MP
Page 2: ...TableofContents ...
Page 4: ...Tools Parts ...
Page 10: ...LowLevelProgramming 9 MC MP Service Manual ...
Page 11: ...10 MC MP Service Manual ...
Page 16: ...FlashingdotsandLEDFlowChart 15 MC MP Service Manual ...
Page 19: ...18 MC MP Service Manual ...
Page 21: ...DisplayIsFlashing 20 MC MP Service Manual ...
Page 23: ...22 MC MP Service Manual ...
Page 29: ...28 MC MP Service Manual ...
Page 36: ...HL OH ErrorCondition 35 MC MP Service Manual ...
Page 39: ...SmartWinterMode 38 MC MP Service Manual ...
Page 43: ...42 MC MP Service Manual ...
Page 44: ... SpaNotHeating FlowChart 43 MC MP Service Manual ...
Page 45: ...SpaNotHeating 44 MC MP Service Manual ...
Page 46: ...SpaNotHeating 45 MC MP Service Manual ...
Page 47: ...46 MC MP Service Manual ...
Page 48: ...PumpFlowChart 47 MC MP Service Manual ...
Page 49: ...Pump1DoesNotWork 48 MC MP Service Manual ...
Page 51: ...Pump2DoesNotWork 50 MC MP Service Manual ...
Page 53: ...52 MC MP Service Manual ...
Page 54: ...BlowerFlowChart 53 MC MP Service Manual ...
Page 55: ...BlowerDoesNotWork 54 MC MP Service Manual ...
Page 57: ...56 MC MP Service Manual ...
Page 58: ...SpaLightFlowChart 57 MC MP Service Manual ...
Page 59: ...SpaLightDoesNotWork 58 MC MP Service Manual ...
Page 61: ...OzonatorDoesNotWork 60 MC MP Service Manual ...
Page 62: ...CirculationPumpFlowChart 61 MC MP Service Manual ...
Page 63: ...CirculationPumpNotWorking 62 MC MP Service Manual ...
Page 64: ...KeysFlowChart 63 MC MP Service Manual ...
Page 65: ...KeysAren tWorking 64 MC MP Service Manual ...
Page 66: ...HowToReplaceTheBoard 65 MC MP Service Manual ...
Page 69: ...HowToReplaceTheHeater 68 MC MP Service Manual ...