TROUBLESHOOTING

TEST 7: BLOWER ON, BLOWER PROVER SWITCH CLOSED, NO IGNITER OPERATION

Conditions:

Power on, but no power to igniter

Plugs in receptacles

Blower (Draft Inducer) on

24V at ignition board E1, Pin 10

Check E1 pin 10 - 24V

Check E4 pin 4 to Ground

Ground

Check E4 pin 2 to Ground

Ground

Continuity

Test

4321

E4 Plug

 

 

 

Figure 26

 

 

 

 

 

 

TEST 7

Voltage check and continuity check of hot surface igniter circuit

 

 

Continuity check - Power off- Plug removed from E4 receptacles.

 

 

 

Nominal 80 VAC check - Plug in E4- Power on.

 

 

IF

then

 

 

Continuity is not indicated between E4 plug

check wiring and connection from E4 plug to HSI receiving plug.

 

 

pin 2 to 4.

replace HSI Assembly.

 

 

Continuity is present

Resistance should be between 11 and 20 Ohms at a temperature of 77°F.

 

 

Voltage is not present between E4, Pin 2 to ground

Replace ignition board.

 

 

Voltage is present

Continue

 

 

Voltage is not present between E4, Pin 4 to

check wiring and plug connections to hot surface igniter (HSI).

 

 

ground

replace HSI if needed.

 

 

Voltage is present

Note ignition board flash code LED. Hot surface igniter (HSI) should work.

 

 

 

 

 

 

 

 

 

 

 

Servicing should only be performed by a Qualified Service Agent

33

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American Water Heater (A)BCG385T500-8N, (A)BCG38T500-8P manual E4 Plug

(A)BCG38T500-8P, (A)BCG385T500-8N specifications

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