Montigo GTMS Guía para resolver problemas descargar pdf (Pagina 7)

Troubleshooting ﬂ ow chart

Was observed spark

at the Pilot Hood before the

DFC board locked out

YES

1. Check the spark electrode positioning - adjust

as necessary (for the correct distance refer t o

the Pilot burner user installation manual)

2. Replace the spark cable, or the cable-

electrode assembly, or the pilot assembly

3. Verify the electrical connections integrity and

make sure they are in accordance with the

relevant system wiring diagram. If necessary

replace the wire harness.

4. Replace the DFC board.

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. If pilot flow adjuster screw is not sealed;

check if pilot flow adjust screw is set correctly in

accordance with the appliance manufacturer

instructions. If necessary correct it.

3.Replace pilot tube or complete pilot assembly.

4.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.

5. Remove the provided wiring harnesses from

EV1 of gas valve (red base), and verify voltage

at ignition between the EV1 terminal and the

ground connection on the valve body. If the

voltage is greater then 0 then Replace Valve.

Otherwise Replace DFC

Is the DFC board in

lock out

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. Replace the DFC board.

YES

If the DFC giving signal lock out.

The board should be unlocked to

reinitiate a pilot flame ignition (for

the correct unlock sequence refer

to the DFC Use and Installation

Instructions)

Pilot flame is ON

YES

Spark

continues while the

pilot is ON

YES

1. Replace the sense cable, or the cable-

sense electrode assembly, or the pilot assembly

2. Replace the DFC board

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Montigo GTMS Guía para resolver problemas Pagina 7

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