BFC Error Relay Error
Relay Gas Heater
Relay within SGE/BFC water heater. Normally open, closes on fault with gas
side of the water heater.
Part Name:
Wiring Diagram Key:
Function:
Testing:
1. With the power off, test continuity between terminals 1,2 in the control panel. The correct reading is open
circuit. If closed circuit, check to see if a link has been added between 1,2 in the control panel, or X1, X2 in the
water heater terminal box. If not, investigate water heater.
2. With the power on and CB3 on, measure voltage between terminal 1 and Earth. The correct reading is 230V. If
0V, test CB3.
3. With the power on, CB2 and CB3 on, confirm that the BFC water heater is on and healthy. If the BFC is off,
measure voltage between 2L1 and Earth. The correct reading is 230V. If 0V, test CB2. If 230V, test BFC water
heater (refer to BFC manual).
4. With the power on, CB2 and CB3 on and BFC healthy, trip BFC by turning off the gas isolation valve. When the
SGE goes into fault and displays an error code on the screen, measure voltage between terminal 2 and Earth. The
correct reading is 230V. If 0V, test BFC thermocontroller (refer to BFC Manual).
Timer Relay
K1T
E00TIM M/F
Timer relay used to create 5 minute delay after the error relay closes
before the immersion heater switches on and sends a fault text message to
reduce nuisance messages from minor self-resetting blocking codes.
When set to Op, 60s, and 5, the unit is set to close the relay after 5
minutes (five lots of 60 seconds).
Part Name:
Wiring Diagram Key:
Adveco Part Number:
Function:
Correct Operation:
Testing:
1. With the power off, confirm the timer relay is set to Op, 5, 60s, set correctly if necessary.
2. With the power off, test continuity between terminal 15/18 of K1T. The correct reading is open circuit. If
closed circuit, replace K1T.
3. With the power off, test continuity between A2 of K1T and the neutral of the isolator. The correct reading is
closed circuit. If open circuit, investigate the wiring.
4. With the power on, CB2 on, and CB3 on, fault out the SGE water heater and measure the voltage between A1
and Earth, 15 and Earth, and Y1 and Earth. The correct reading is 230V. If 0V, test CB3, and Error Relay.
5. With the power on, CB2 on, CB3 on, and the SGE water heater having been at fault for at least 5 minutes,
measure the voltage between 18 and Earth. The correct reading is 230V. If 0V, replace K1T.
EB0025
3. Troubleshooting
15
EB0025-EB0028-EB0030 Control Panel -
Installation and maintenance manual
