Troubleshooting Guide (cont'd)
SYSTEMS CHECK
Please check guidelines below. For your safety, water heater service should be performed only by a qualified service technician.
_,WARNING
DO NOT
FROM FACTORY.
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An open earth ground circuit to the ignition system.
Wiring error or a high resistance to earth ground.
Pressure switch remained closed longer than 5 seconds after the call for heat
began.
Pressure switch remained opened longer than 5 seconds after the combustion
blower was energized.
Error in the hot surface ignitorcircuit,
System in lockout.
Problem in the gas valve driver circuit.
Problem with the internal circuit.
Problem with the internal circuit.
Flamesignalsensedout of proper sequence.
ECO activated.
One ofthetemperatureadjust buttons stuck closed.
Water temperature sensor is either
open or short circuited.
I.Check that the earth ground connection is properly connected.
2.Check that the ground conductor on the water heater is properly connected.
I.Check for proper connection of line neutral and hot wires.
2.Check that the water heater is securely connected to earth ground.
hPressureswitch wiring is incorrect.
2. Replacepressureswitch.
hPressureswitch wiring is incorrect.
2. Pressureswitch tubing not connected
correctly.
3. Air intake or exhaust obstructed.
hCheck that allwiring is correct and secure.
2. Replacehot surface ignitor.
I. Gassupply isoff or too low to operate.
2.Hot surfaceignitor not positioned correctly.
3.Low voltage to the water heater.
4.Electric polarity to unit is incorrect - test and correct.
I.Turn power to the water heater offfor I0 seconds and then back on.
2. Replace gas control valve.
I.Turn power to the water heater off for I0 secondsand then back on.
2. Replacegascontrol valve.
I.Turn power to the water heater off for I0 secondsand then back on.
2. Replacegascontrol valve.
I.Replace gas control valve.
I.Replace gas control valve.
h Press and release each of the buttons once.
2. Replace gas control valve.
h Check that all wiring is correct and secure. 2. Replace gas control valve.
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