Roberts Gorden DAT100 - Manual (Page 39)

SECTION 15: T ROUBLESHOOTING
33
15.4 Troubleshooting for Solenoid Valves
15.5 Troubleshooting for Main Fan
Valve faulty.
Replace with one of
correct type.
Fault elsewhere
Fault elsewhere
If problems persist, contact
ROBERTS GORDON ® at
Tel: +44 (0) 1902 498733
or www.rg-inc.com
Valve Operating
TROUBLESHOOT ENDS.
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
START
Is 230v at the valve
terminals at the
appropriate time.
Yes
No
If problems persist, contact
ROBERTS GORDON ® at
Tel: +44 (0) 1902 498733
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
START
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.
Conduct Commissioning procedure as shown on Page 21, Section 11