Roberts Gorden DAT75 Manual Do Utilizador

34 

Valve faulty.

Replace with one of

correct type.

Fault elsewhere

Fault elsewhere

If problems persist, contact

ROBERTS GORDON

®

 at

Tel: +44(0) 190 249 8733

or www.rg-inc.com

Valve Operating

No

Yes

Valve faulty.

Replace with one of

correct type.

Does gas pressure at

outlet of valve return to zero or

lower when valve turns off?

No

Yes

Does gas pressure at outlet

of the valve rise when

valve turns on?

No

Yes

Is gas pressure at inlet of the

valve correct for gas type?

Note pressure found.

No

Yes

Is 230v at the valve

terminals at the

appropriate time.

Yes

No

If problems persist, contact

ROBERTS GORDON

®

 at

Tel: +44(0) 190 249 8733

or www.rg-inc.com

Fan Operating

TROUBLESHOOT ENDS. No

Fan motor or contactor faulty.

Replace with correct type.

Use Section 15.6 to

trace fault.

Combination fan/limit

thermostat faulty.

Replace with correct type.

Is there 230v between

terminals 1 and N of the

main terminal block?

Does fan run when the white

button of combination fan/limit

thermostat is pushed in?

Use Section 5.3 & 11.3 to check

combination fan/limit

thermostat settings. Reset or

replace as necessary.

Fault elsewhere.

Check wiring.

Is Power supply 400 V

between any two phases or

230 V between any Phase and

N at the main terminal block?

No

Yes

Yes

No

No

Yes

Does fan turn on and

off while burner is firing

continously?

No

Yes

Does fan run

automatically?

No

Yes

For your safety and optimum heater performance use only ROBERTS GORDON

®

 replacement parts.