Pentair Pool Products MiniMax NT Series Service Manual page 36

Troubleshooting
1. Check for 24VAC at TH terminal on Ignition Module.
If none, check connections and wire and check for
24VAC at white wire terminal on Fan Vacuum Switch.
If none, check Vacuum Switch operation, (see Vacuum
Switch Testing section later in this manual).
2. Check for 120VAC between IGN/120 & IGN terminal
on Ignition Module or 120VAC between IGN/240 &
IGN terminal on Ignition Module depending on electric
supply. If none, Ignition Module is bad.
3. Check for 120VAC at HSI. If none, check connections
and wires. If you have 120 VAC at HSI and it's not
functioning, the HSI is bad.
4. See HSI Testing section later in this manual for
additional testing information.
P/N NTSM03
POWER / T-STAT / AUX / PRESS / SERVICE
Fan Running / HSI not energized and
lock out occurs after 30 seconds
36
White Wire
Rev. B 2-11-04