IBC Technologies SL 20-115 Installation And Operating Instructions Manual
                                                                                | |
Contents
| 
5-5TROUbLESHOOTINGSL 20-115 MODULATING GAS bOILER5.3 trouBlesHooting guideSYMPTOM DIAGNOSIS REMEDYAIRFLOW ERRORLCD Screen Message:Error – Insufficient Air FlowInsufficient combustion airflow;soft error; will retry in 5 minutesCheck fan operation • Check lead is attached at fan.• Cycle power off/on; listen for fan initialization.if no action, focus your attention on the fanitself.Check for fouledreference lines and airsensor• Check clear vinyl air pressure line forpresence of water. after disconnecting fromblack air pressure sensor, blow clear (do notblow into sensor). Check for exhaust re-ingestion, or repeated power interruptions .• Ensure condensate trap is not blocked.• Go to Advanced Diagnostics and checkdifferential air pressure sensor (at rest andwith fan on). See Section 5.2.3.Check achieved fanpowerin advanced diagnostics, during Pre-purge, FanPressure (FP) should move close to requiredPressure (rP); if FP only 120-150 vs. rP of190-300, then check for actual vent systemblockage: (a) disconnect intake within boilercase; (b) open burner then fan/gas valve lookingfor debris. See Section 4 – Warnings andCautions, plus page 4-6.Water noise in vent.Excess condensate inventing.• Check condensate trap for obstructions.Remove obstructions and refill condensatetrap with water.• Check vent length, size and configuration.5.3.1 Using Control Module Errors DisplayedWARNINGNever attempt to repairthe control module (circuitboard). If the control moduleis defective, replace itimmediately. |
Related manuals for IBC Technologies SL 20-115
This manual is suitable for:
manualsdatabase
Your AI-powered manual search engine