8
2
1. Verify the pilot flame fully engulfs the tip of the sense electrode. If not replace the pilot
assembly.
2. Replace the sense electrode.
3. Carefully clean the electrical connections of the sense cable, and the DFC board sense
cable connection.
4. Replace the sense cable, or the cable- sense electrode assembly, or the pilot assembly
5. Verify the pilot is properly grounded, and there is no damage to the ground cable.
If necessary replace the pilot ground cable .
6. Replace the pilot orifice with a new orifice of correct size, and type, or replace the pilot
assembly. Under all circumstances follow the appliance manufacturer's service instructions.
7. If pilot flow adjuster screw is not sealed; check it in acordance to appliance manufacturer
instruction. If necessary correct it
NO
Pilot holds
the flame?
YES
Main burner
ignites?
YES
NO
1. Verify the electrical connections integrity and make sure they are in accordance with the
relevant system wiring diagram. If necessary replace the wire harness.
2. Check if the remote transmitter is in thermostat mode and verify there is a call for heat.
Adjust the setting for heat.
3. Verify that the pilot hood is properly fitted and a pilot flame is directed to properly ignite
the main appliance burner.
4. Replace the main burner orifice with a new orifice of correct size, and type, or replace the
pilot assembly. Under all circumstances follow the appliance manufacturer's service
instructions.
5. Remove the provided wiring harnesses from EV2 of gas valve (red base), and verify
voltage at ignition between the EV1 terminal and the ground connection on the valve body.
5.1 If the voltage is greater then 0 then Replace Valve.
5.2 Or Replace DFC
6. Check the pressure at the outlet pressure test point out according to the manufacturer
instruction. If not in accordance replace the gas valve.
Main burner
lights when the
pilot only should
light
NO
YES
1. Replace DFC board
2. Replace the gas valve
Main burner
remains ON
YES
NO
1. Verify the electrical connections integrity and make sure they are in accordance with the
relevant system wiring diagram. If necessary replace the wire harness.
2. Check the pressure at the outlet pressure test point out according to the manufacturer
instruction. If not in accordance replace the gas valve.
3. With the system in the OFF position, connect the voltmeter between the EV2 terminal
(green base) on the valve, and the ground on the valve body.
Turn the system ON, let the pilot light, and observe the following voltage sequence: once
the pilot flame is proved, the voltage on EV2 should spike to approx. 5 VdC for approx. 2
sec and then drop to approx. 0.6 Vdc continuously.
3.1 If the sequence is respected, replace the gas valve.
3.2 If the sequence is not respected, replace the DFC board.
3
(20 paginas)
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comentarios a estos manuales