37MSPA-1-AS
1• Replace the pump 1 fuse (F5).
Turn pump 1 to high speed and measure
the voltage between the pump terminals
(P15 & P22 on the board).
You should read ≈230 VAC.
Note: If necessary, refer to the supplied
wiring diagram!
If pump 1 does not work but the "Pump 1" marker is displayed, proceed as
follows:
2• If replacing the fuse is not effective or
pump 1 only runs at one speed,
measure the voltage for both speeds
on the board as explained below:
3• Turn pump 1 to low speed and
measure the voltage between the
pump terminals (P19 & P22 on the
board).
You should read ≈230 VAC.
4• If the voltage reading is correct,
replace pump 1.
5• If the voltage reading is not correct,
replace the board referring to the
respective section of this manual.
Pump 1 fuse (F5)
TROUBLESHOOTINGPump 1 Does Not Work!
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