Pentair Pool Products MiniMax NT Series Service Manual page 34

Troubleshooting
1. Be sure that Pump is ON and running with a full prime.
2. Is Pump Impeller clogged.*
3. Is Filter Dirty.*
4. Is Pump too small or worn out.*
*30 GPM is required to close the Pressure Switch. Some 2 Speed pumps will not
produce 30 GPM on Low Speed.
5. Check for 24 VAC at outside White Wire on PRESS connector. If no voltage, Control Board is bad.
6. Check for 24 VAC at second White Wire on PRESS connector. If have voltage, Control Board is bad.
7. Check that wires are attached to Pressure Switch and check for 24 VAC at both terminals. If no
voltage at either terminal, wire is bad. If voltage at one terminal only, Pressure Switch is
clogged, out of adjustment or bad.
MiniMax NT (Standard) Wire Connection
TRANSFORMER
WHITE MALE
CONNECTOR
BLOWER
PENTAIR 6800
DUAL
ELECTRONIC
THERMOSTAT
Figure 30.
P/N NTSM03
GREEN
FLAME SENSOR
AIR PRESSURE SWITCH
THERMOSTAT SWITCH
THERMISTOR PROBE
POOL/OFF/SPA
POWER / T-STAT / AUX ONLY!
IGNITOR
WHITE
BLUE
WHITE
RED
GREEN
HILIMITS
GAS VALVE
RED/BROWN FEMALE
WHITE
WHITE
WATER
PRESSURE
SWITCH
Figure 29.
240 OR 120VAC
WHITE
120VAC
BLACK
BLUE FEMALE
CONNECTOR
WHITE
240VAC
BLACK
CONNECTOR
POWER SWITCH
TERMINAL BLOCK
34
GREEN
FIELD
SUPPLIED
120 VAC
OR
240 VAC
60 Hz
POWER TERMINAL
BLOCK
BOND LUG
(ON THE SIDE OF JACKET)
Rev. B 2-11-04