d. Troubleshooting Flowchart - Quick Reference...
First Visual Check
(Does Ignitor Spark?)
Computer/Timer Calls For Heat
Is spark evident (on) |
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at Ignitor Assembly? |
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Open circuit to DSI System.
No 
Check the 24 VAC power source Sail Switch and
Go To Chart 2
Replace the DSI Module. Energize system and check for proper operation.
Check
High Voltage (HV) Lead for nicks or cracking,
where sparking to ground may
occur. Is this wire
damaged?
No
Visually
inspect Spark
Electrode Assembly. Is ceramic cracked or Spark Electrode incorrectly gapped?
No
Visually
inspect High
Voltage (HV) Wire
connections at both DSI Module
and Ignitor Assembly.
Are connections
secure?
Yes
Remove
High Voltage (HV) Wire from
Yes DSI Module and visually inspect. Is conductor
visible at end of
HV Wire?
| Repair or replace HV Lead | |
Yes | Assembly. | |
Energize system and check | ||
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| If | cracked, replace Electrode |
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| Assembly. Correct gap size |
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| is 1/8" +/- 1/32" (3.175 mm +/- |
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Yes |
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| 0.79248 mm). |
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| Energize system and check |
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1.At DSI Ignitor Assembly be sure HV Wire is secure in the boot as well as the connection to the Ignitor
Probe Assembly.
No 
2. At DSI Module, center the end of the HV Wire with a Spike Terminal. Energize system and check for proper operation.
Cut the end off of the HV Wire 1/4" at a time until conductor becomes visible and is flush with the insulation.
No 
Reconnect the HV Wire to the Spike Terminal on the DSI Module.
Energize system and check for proper operation.
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