Roberts Gorden DAT75 Manual Do Utilizador

32 

If problems persist, contact

ROBERTS GORDON

®

 at

Tel: +44(0) 190 249 8733

or www.rg-inc.com

Heater Operating

TROUBLESHOOT ENDS. No

Trace fault in supervision

system. See Section 16.3.

No

Yes

Is red lockout light on?

No

Is the flame current at

least 1 µAmp DC when

the flame lights?

Ignition control faulty

 replace.

See Section 15.6.

Is HT lead okay and

connected?

Is spark electrode okay?

Yes

Replace valve.

Is the gas valve operating?

To test valve,

see Section 15.4.

No

Does the flame light?

No

Yes

Wait 30 - 40 seconds.

Is ignition spark operating? No

Yes

Flue fan faulty replace

Burner control faulty or plug

in connections faulty. Repair

or replace as necessary

Check for too much flue/air inlet

duct. Check for blockage in

combustion air circuit.

Check for faulty air pressure

switch. See section 16.5.

Does air pressure switch

change over?

No

Yes

Have limit thermostats

operated or light faulty?

Reset or replace as

necessary.

Is 230v supply at fan

connections?

Does flue fan run?

No

Are external controls on? Yes

Yes

Is the green light on?

No

Yes

Is red lockout light on?

No

Yes

Press in lockout reset button

on rear of heater or remote

reset button if fitted.

Turn on supplies.

Are gas & electrical

supplies on?

Yes

No

Yes

No

 

There are two burner controls used. Honeywell S4563C and 
S4565C. They both have similar operating sequences. To 
measure flame current, connect a 0 - 50 μA DC meter in 
series with the flame probe. If the meter reads negative 
values, then reverse the test leads.

For your safety and optimum heater performance 
use only ROBERTS GORDON

®

 replacement parts.