ETi 250 High Efficiency Pool and Spa Heater Installation and User’s Guide
55
Verify 24 VAC at IND
terminal on Control Board
NO
Did blower come on?
YES
Verify that gas supply is open all
the way to Gas Valve, and Gas
Valve is set at “on” position.
Check for 24 VAC to Gas Valve
terminals during ignition try.
(Voltage appears about 24 seconds
after call for heat). SEE NOTE 2
Verify that gas is flowing to burner
during ignition try. Observe gas
meter for movement during ignition
try (wait for about 30 seconds after
calling for heat)
Replace Gas Valve
with identical part.
NO
NO
Check for 24 VAC between
TH and GND terminals on
IGNITION CONTROL
MODULE. SEE NOTE 1.
Check for 24 VAC between
TH and GND terminals on
CONTROL BOARD.
SEE NOTE 1
NO
NO
Replace Control
Board.
YES
Fix wiring between TH and
GND terminals of ignition
Control Module and Control Board.
YES
Check for 24 VAC between
VAL and GND terminals on
IGNITION CONTROL
MODULE. SEE NOTE 2.
Replace Ignition
Control Module.
NO
Check for 24 VAC between
VAL and GND terminals on
Control board.
SEE NOTE 2
YES
Check for 24 VAC between
GAS terminals on Control
Boards. SEE NOTE 2.
Fix wiring between GAS
terminals on Control Board
and Gas Valve.
YES
Fix wiring between VAL and
GND terminals of Ignition
Control Module and
Control Board.
Replace Control
board.
NONO
YES
Verify connections to spark
electrodes are not broken and
flame current status.
YES
NOTE 1:Voltage appears immediately after call for
heat, and may be on for only about 30 seconds.
NOTE 2: Voltage appears about 24 seconds after
call for heat, and may be on for only about 7 seconds.
DIAGNOSTIC ALARMS: IGN (Continued)
Replace Ignition
Control Module.
YES
Replace
Control
Board.
NO
A
Troubleshooting
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