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| SECTION 15: TROUBLESHOOTING | |
15.2 Troubleshooting For Automatic Ignition Burner Systems |
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There are two burner controls used: Honeywell S4563C and |
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| WARNING |
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S4565C. They both have similar operating sequences. To |
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measure flame current, connect a 0 - 50 μA DC meter in |
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series with the flame probe. If the meter reads negative |
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values, then reverse the test leads. |
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| Electrical Shock Hazard | |
Start |
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| Do not touch ignition components. | |
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Are gas & electrical |
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No | Turn on supplies. |
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supplies on? | Failure to follow these instructions can | |||
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| result in death or electrical shock. |
Yes |
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| Has the thermostat limit | |||
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Is the green light on? | No | Are external controls on? | Yes | thermodisc operated or light | ||
faulty? Reset or replace as | ||||||
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Yes |
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| Press in lockout reset button |
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Is red lockout light on? | Yes | on rear of heater or remote |
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| reset button if fitted. |
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No |
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Does flue fan run? | No |
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Yes |
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Does air pressure switch | No | |
change over? | ||
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Yes
Wait 30 - 40 seconds.
Is ignition spark operating? No
Yes |
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Does the flame light? | No |
Yes |
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Is red lockout light on? | Yes |
Is 230 V supply at fan | Yes | |
connections? | ||
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No
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.
Is HT lead okay and
connected? Yes Is spark electrode okay?
Is the gas valve operating?
To test valve, No see Section 15.4.
Is the flame current at
least 1 µAmp DC when No the flame lights?
Flue fan faulty replace
Ignition control faulty replace.
See Section 15.6.
Replace valve.
Trace fault in supervision system. See Section 16.3.
No
Heater Operating
TROUBLESHOOT ENDS. No
If problems persist, contact | For your safety and optimum heater performance, |
use only ROBERTS GORDON® replacement parts. | |
ROBERTS GORDON® at | Conduct Commissioning procedure as shown |
Tel: +44(0) 121 506 7709 | |
on Page 24, Section 11. |
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