12 MSPA-MP Metapacks Service Manual
Flashing Dots Displayed
Three flashing dots error condition indicates a pressure switch problem.
There must be enough water in the spa for normal operations. System may detect error
condition if spa filter is dirty or if something restricts flow of water in piping.
The heater will automatically shut down when error condition occurs.
Power may remain On when the following steps are carried out.
5• If you do not detect continuity,
verify if pressure switch cable is
properly connected to pressure
switch and board.
1• Verify if Pump 1 (or circulation
pump if installed) is working. If
pump is not working right, refer
to pump section of this manual.
2• Make sure jumper is set pro-
perly for circulation pump.
3• If Pump 1 is working properly,
turn it on by pressing Pump 1
key (or start circulation pump
by increasing the set point) and
test continuity on pressure switch.
4• If you detect continuity, go to
step #10.
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