SECTION 15: TROUBLESHOOTING
15.4 Troubleshooting for Solenoid Valves
START
Is 230v at the valve
terminals at the appropriate time.
Yes
Is gas pressure at inlet of the valve correct for gas type?
Note pressure found.
Yes
Does gas pressure at outlet
of the valve rise when
valve turns on?
Yes
Does gas pressure at
outlet of valve return to zero or
lower when valve turns off?
Yes
Valve Operating
TROUBLESHOOT ENDS.
No | Fault elsewhere |
No | Fault elsewhere |
Valve faulty.
No Replace with one of correct type.
Valve faulty.
No Replace with one of correct type.
If problems persist, contact
No | ROBERTS GORDON® at | |
Tel: +44 (0) 1902 498733 | ||
| ||
| or |
15.5 Troubleshooting for Main Fan
START
Does fan run
automatically? No
Yes
Does fan turn on and
off while burner is firing Yes continously?
No
Fan Operating
TROUBLESHOOT ENDS. No
Is Power supply 400 V
between any two phases or 230 V between any Phase and No N at the main terminal block?
Yes
Does fan run when the white button of combination fan/limit No
thermostat is pushed in?
Yes
Use Section 5.3 & 11.3 to check combination fan/limit thermostat settings. Reset or replace as necessary.
If problems persist, contact ROBERTS GORDON® at Tel: +44 (0) 1902 498733 or
Fault elsewhere.
Check wiring.
Is there 230v between | No | Combination fan/limit |
terminals 1 and N of the | thermostat faulty. | |
main terminal block? |
| Replace with correct type. |
Yes |
|
|
Fan motor or contactor faulty. |
|
|
Replace with correct type. |
|
|
Use Section 15.6 to |
|
|
trace fault. |
|
|
For your safety and optimum heater performance use only ROBERTS GORDON® replacement parts.
Conduct Commissioning procedure as shown on Page 21, Section 11
33
