Pentair Pool Products MiniMax NT Series Service Manual page 37

Troubleshooting
1. Check the green lights on back of
Control Board. If the "High Limit"
and "Thermal Fuse" are ON, (i.e.
only one light is OFF), there is no
voltage being supplied to the
Control Board from the Valve
(VAL) connection on the Ignition
Module. Check for 24 VAC at the
"VAL" connection on the Ignition
Module. If no voltage, Ignition
Module is bad.
2. Check for 24 VAC at the red wire
connected to the Ignition Module
terminals on the Control Board.
If none, check connections and red
wire for continuity.
3. Check for 24 VAC at the red wire
connected to the Valve connector on
the Control Board. If none, Control
Board is bad.
4. Check for 24 VAC at the red wire on
the Gas Valve. If no voltage, check
connections and red wire for continuity.
5. If there is voltage at the Gas Valve, be
sure that the gas valve and all shut off valves are turned ON, that the gas line has been bled and
that there is gas available.
6. If all valves are open and there is gas to the valve. Replace Gas Valve.
Rev. B 2-11-04
POWER / T-STAT / AUX / PRESS / SERVICE
Fan Running / HSI Energized / No Gas to Burners
37
Red Wires
Connect Here
Red Wire
P/N NTSM03