American Water Heater 40-42K BTU Water Heater User Manual


 
21
TROUBLESHOOTING
LED STATUS PROBLEM SOLUTION
An open earth ground circuit to the ignition
system.
1. Check that the earth ground connection is
properly connected.
2. Check that the earth ground conductor on the
water heater is properly connected.
Wiring error or a high resistance to earth
ground.
1. Check for proper connection of line neutral and
hot wires.
2. Check that the water heater is securely
connected to earth ground.
Pressure switch remained closed longer than 5
seconds after the call for heat began.
1. Pressure switch wiring is incorrect.
2. Replace pressure switch.
Pressure switch remained open longer than
5 seconds after the combustion blower was
energized.
1. Pressure switch wiring is incorrect.
2. Pressure Switch tubing is not connected correctly.
3. Air intake or exhaust obstructed.
Error in the hot surface igniter circuit. 1. Check that all wiring is correct and secure.
2. Replace hot surface igniter.
System in lockout. 1. Gas supply is off or too low to operate.
2 Hot surface igniter not positioned correctly.
3. Low voltage to the water heater.
4. Electric polarity to unit is incorrect - test and cor-
rect.
Problem in the gas valve driver circuit. 1. Turn power to the water heater off for 10 seconds
and then back on.
2. Replace gas control valve.
Problem with the internal circuit. 1. Turn power to the water heater off for 10 seconds
and then back on.
2. Replace gas control valve.
Problem with the internal circuit. 1. Turn power to the water heater off for 10 seconds
and then back on.
2. Replace gas control valve.
Flame signal sensed out of proper sequence. 1. Replace gas control valve.
ECO activated. 1. Replace gas control valve.
One of the temperature adjust buttons stuck
closed.
1. Press and release each of the buttons once.
2. Replace gas control valve.
Water temperature sensor is either open or
short circuited.
1. Check that all wiring is correct and secure.
2. Replace gas control valve.