“System Sentinel”Troubleshooting Guide
Section 4... the “PILOT VALVE” LED
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| Is the“PILOT VALVE”LED Illuminated? | YES | ||
Is the Spark Ignitor operating? |
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| The Ignition Control Module is in |
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| Is the Pilot Flame burning? | the Ignition sequence, and is pro- | ||
(Can sparking be heard?) |
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| viding 24 VAC power to the ECO | |
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| YES | NO | (Energy |
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| theThermostat | ||
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The System Sentinel Panel is defective and must be replaced.
1. Remove Ignition Cable and check for good conti- |
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nuity, replace if necessary. |
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2. Check Ignitor Electrode gap for proper spacing |
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(1/8”to 5/32”). Correct if necessary. |
| Is 24 VAC present between the Brown | wire on “PV” |
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3. Examine Ceramic | Insulator on Pilot Assembly | YES | Terminal and White wire on “PV/MV” | Terminal on |
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for cracks. Replace if cracks are evident. |
| the Gas ControlValve? |
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Is 24 VAC present between the Brown wire on “PV” |
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Terminal and Gray Ground wire on Ignition Control |
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Module? |
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| the inlet gas pres- | |||
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| sure at or below the | |||
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| Gas Control Valve | maximum as speci- | ||||||
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| fied on the rating | |||||||
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| is inoperable and must | plate? | ||||||
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| be replaced |
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Is the“IGNITION”LED illuminated? |
| Is the “ECO” LED |
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| illuminated? |
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YES |
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| Check continuity of Brown wire |
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| between ECO Device (inside of Ther- |
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Ignition | Control Module |
| mostat), and “PV” Terminal on Gas |
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is inoperable and must be |
| ControlValve. Repair or replace wire as |
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replaced. |
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| needed to restore power to “PV”Termi- |
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| nal on gas valve. |
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Refer to Section 3...the“IGNI- |
| Refer to Section 5...the“ECO”LED in |
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| TION”LED in theTroubleshooting Guide |
| theTroubleshooting Guide |
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!CAUTION
Label all wires prior to disconnection when servicing controls.Wiring errors can cause improper and dangerous operation. VERIFY PROP-
ER OPERATION AFTER SERVICING!
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