Operation and Maintenance Manual for
Operation and Maintenance Manual for
Operation and Maintenance Manual for
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Type of Problem Possible Cause or Solution<br />
be corroded or diaphragm<br />
could be defective.<br />
4. Make sure wiring from<br />
controller to pressure switch<br />
are shielded wires. Also route<br />
wire away from any AC lines or<br />
motor windings.<br />
5. Inlet to pressure switch is<br />
obstructed.<br />
3. Motor starter trips repeatedly. 1. Verify wiring to <strong>and</strong> from coil<br />
<strong>and</strong> controller.<br />
4. Controller display shows “System<br />
On” but system does not run.<br />
5. RO Controller shuts off, does not<br />
restart, <strong>and</strong> no alarm indication is<br />
present.<br />
6. RO Controller shuts down on high<br />
temperature even though the<br />
temperature is below setpoint.<br />
2. Verify that the overload relay is<br />
set according to rating<br />
specified on motor nameplate.<br />
3. Check the secondary voltage<br />
on the trans<strong>for</strong>mer (should be<br />
24 VAC ± 2 volts).<br />
1. Verify wiring.<br />
2. Check motor starter <strong>for</strong><br />
overload.<br />
3. Controller is in Tank Mode <strong>and</strong><br />
tank is full.<br />
4. Controller is in St<strong>and</strong>-By Mode<br />
<strong>and</strong> system is between auto<br />
flush cycles.<br />
1. Possible brown out, or power<br />
outage reset the controller to<br />
“System Off”.<br />
1. Calibrate temperature sensor.<br />
2. Check sensor wiring.<br />
5-1 5-2
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