TROUBLESHOOTING
SYMPTO M S | CAUSE | |
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FAN OPERATES, LITTLE | 1) | Check gas pilot manual cock; should be left in open position |
OR NO PILOT FLAME, A N D | 2) | Check all gas lines for clogging and for purging of entrapped air |
“TURN RESET” LIGHTS | 3) | Check for moisture and/or conducting dirt on Sparktrode; check |
AFTER 5 SECONDS |
| electrode for carbon “bridge” to burner, which may short out ignition |
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| spark |
| 4) | Check for adequate pilot flame. Adjust needle valve at burner if |
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| necessary. |
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FAN OPERATES, | 1) | Check all manual cocks in main gas line; these should be left open |
PILOT IGNITES NORMALLY, |
| in normal position |
THEN GOES OUT AS | 2) | Check scanner; remove and clean lens; check mounting pipe nipple |
“TURN RESET” LIGHTS |
| for clogging insects,dirtorrust |
| 3) | W ith selector in “WIN” but unit not operating (i.e. door switch open- |
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| contact with door closed), hold match or lighter flame in front of |
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| scanner. Flame relay in Fireye chassis should pull in with audible |
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| “click”. If not, proceed to next step |
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| CAUTION - Before proceeding to next steps, turn selector to “OFF”, |
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| make the changes suggested, and then return the selector to “WIN”. |
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| This is important, because in “WIN” position, the Fireye is energized |
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| and electrical shock could result |
| 4) | Detach #20 and #21 leads from installed scanner,attach a known |
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| good scanner to terminals #20 and #21, and repeat previous step. |
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| If flame relay now pulls in, install new scanner. |
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| from original scanner and proceed to next step. |
| 5) | Repace Fireye chassis, inside control cabinet, with a known good unit, |
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| and repeat step 3. If flame relay still does not pull in, have scanner |
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| and chassis checked by Fireye distributor or by Berner. |
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FAN OPERATES, | 1) | W ith fan operating momentarily jumper circuit #7 to #8. This should |
PILOT IGNITES NORMALLY, |
| result in control relay CR pulling in, lighting “TURN RESET” pilot and |
THEN GOES OUT AS |
| extinguishing “LOCKOUT”. If so, insert new TDR relay (Amperite |
“LOCKOUT” LIGHTS |
| 115NO5). If not proceed to step 2 |
| 2) | W ith fan operating, check for 115 volts across circuits #8 and #2 |
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| (at “coil” connections of CR control relay). If no voltage, jumper per |
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| step1. Ifstillnovoltage backtrack through circuits 8, 7, 6 and 5 to |
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| determine where break in circuit exists. If115 volts is measured |
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| but relay does not pull in, or if relay does pull in but “LOCKOUT” remains |
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| lit, replace CR relay |
| 3) | After either steps 1 or 2 corrective action has been taken, continue with |
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| last two symptoms. |
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