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Hersteller: Enerco Dateigröße: 2.95 mb Dateiname: Unterrichtssprache:

4e. If the above does not correct the condition, consult your local gas company or local Modine representative. Intermittent Pilot Problem Symptoms and Diagnosis 1. Pilot will not light or stay lit: 2. Pilot lights, main burner will not light 3. Burner shuts down before thermostat is satisfied. 4. Burner fails to shut off after thermostat is satisfied: If a qualified service person cannot solve the problem, consult your local gas company or Modine representative. When servicing, repairing or replacing parts on these units always give the complete Model Number (which includes power code and control code) and Serial Number from the unit rating plate. See page 28 for Model Number and Serial Number Designations. 24 TROUBLESHOOTING GUIDE 2a. Gas valve in off position. 2b. System in lock-out mode. 2c. Cracked or broken sensor ceramic. 2d. Defective or loose connections to flame sensor or flame sensor lead. 2e. Incorrect gas pressure. 2f. Insufficient current signal from flame sensor. 2g. Incorrect or loose wiring. 2h. Poor ground to ignition controller. 2i. No power to ignition controller or gas valve 2j. Loose limit control connections or defective limit. 2k. Defective or plugged gas valve regulator. 2l. Defective thermostat or thermostat out of calibration. 2m.Thermostat heat anticipator incorrectly set. 2n. Defective ignition controller. 2p. Blocked vent safety switch tripped. 2a. Turn to on position. 2b. Reset system. 2c. Replace sensor. 2d. Correct or replace. 2e. Check and adjsut if necessary to manufacturer’s recommendations. 2f. Check current according to manufacturer’s recommendations and replace if necessary. 2g. Check wiring. 2h. Check grounding means. 2i. Check voltage to controller and gas valve. 2j. Check connections. Replace limit control if necessary. 2k. Inspect gas valve regulator. Replace if necessary. 2l. Calibrate thermostat or replace if necessary. 2m.Check anticipator setting and correct if necessary. 2n. Replace. 2p. Refer to page 20 for instructions CAUTION Do not attempt to reuse ignition controllers which have been wet. Replace defective controller. 1a. No spark at ignitor. 1b. Dirty or defective flame sensor or loose connections to flame sensor. 1c. Pilot valve electrical connections loose. 1d. Defective pilot valve. 1e. Poor ground connections. 1f. No power from control transformer. 1g. Spark not located in pilot gas stream. 1h. Dirty or plugged pilot orifice. 1i. Pilot line kinked or obstructed. 1j. Pilot flame too low. 1k. Flame sensor out of position. 1l. Defective ignition controller. 1a. Check connections. Check for proper spark gap, cracked or broken electrode ceramic, blown controller fuse or brittle, cracked or loose high tension cable. Check power exhauster pressure switch. Replace if defective. 1b. Check milli-ampls of sensor. Tighten loose connections. Clean sensor with steel wool. Replace flame sensor if necessary. 1c. Tighten connections. 1d. Replace. 1e. Check grounding means. 1f. Check tra...

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