Roberts Gorden UHD[X][S][R] 200 13.4Troubleshooting for Gas Valves, Start, Troubleshoot Ends

Models: UHD[X][S][R] 175 UHD[X][S][R] 150 UHD[X][S][R] 200 UHD[X][S][R] 225 UHD[X][S][R] 350 UHD[X][S][R] 400 UHD[X][S][R] 250 UHD[X][S][R] 300

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13.4Troubleshooting for Gas Valves

SECTION 13: TROUBLESHOOTING

13.4Troubleshooting for Gas Valves

START

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

No

No

No

Fault elsewhere.

Correct pressure problem.

Valve or ignition control

faulty. Replace with one of correct type.

Valve faulty.

Replace with one of

correct type.

Valve Operating

 

If problems persist, contact

No

Roberts-Gordon LLC at

TROUBLESHOOT ENDS.

 

www.rg-inc.com

 

 

13.5 Troubleshooting for Flue Blower

START

 

 

Does flue blower run

No

Correct power

automatically when there

supply problem.

is a call for heat?

 

 

 

 

 

Yes

 

 

Blower motor faulty.

 

 

Replace with correct type.

Yes

 

 

Does blower turn on and

 

Check blower motor leads

off while burner is firing

Yes

for loose connections.

continuously?

 

 

 

No

 

 

Blower Operating

 

If problems persist, contact

No

Roberts-Gordon LLC at

TROUBLESHOOT ENDS.

 

www.rg-inc.com

 

 

For optimum heater performance, use only replacement parts sold and supplied by Roberts-Gordon.

Conduct start-up procedure as shown on Page 21, Section 10.

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Roberts Gorden UHD[X][S][R] 200 service manual 13.4Troubleshooting for Gas Valves, Troubleshooting for Flue Blower, Start