ACP P1333401M Service Manual

Contents

ACP P1333401M Service Manual Manual pdf 10 page image

Display Diagnostics! WARNINGTo avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitorbefore servicing, unless testing requires power.16500030 January 2012©2012 ACP, Inc.10CAUTION!All repairs as described in this troubleshooting section are to be performed only after the caution procedures one through eightlisted below have been followed.1. Check grounding before checking for possible causes.2. Be careful of the high voltage circuit.3. Discharge high voltage capacitor.4. When checking the continuity of the switches or the high voltage transformer, disconnect one lead wire from these parts andthen check continuity with the AC plug removed. To do otherwise may result in a false reading or damage to your meter.5. Do not touch any parts of the circuitry on the P.C. Board circuit since static electric discharge may damage this controlpanel. Always touch yourself to ground while working on this panel to discharge any static charge in your body.6. 208/230 VAC is present in the high voltage circuit board, power relay and primary circuit of low voltage transformer.7. When troubleshooting, be cautious of possible electrical hazard.Error CodesDuring operation, the display may show the following service codes:NOTE: Before scheduling service for any error codes, instruct customer to unplug oven for 1 minute,reconnect power, and retest. If unit operates properly, no service call is required.Display Description Corrective ActionErr1 Failed H.V. Board Replace H.V. board.Err2 Shorted Touch PanelFailed H.V. BoardShorted Display BoardShorted Cable HV to Display BoardReplace Touch Panel.Replace H.V. board.Replace Display Board.Replace Cable.Err3 Failed H.V. Board Replace H.V. board.Err4 Failed H.V. Board Replace H.V. board.Err5 Shorted Touch Panel NOTE: If Touch Panel is pressed for more than 30 seconds, this error codewill appear.1. Disconnect oven from power supply.2. Disconnect side touch panel connector from display board (J5).3. Reconnect oven to power supply.4. If “Err5” reappears after 30 seconds, replace top touch panel.5. If “Err5” does not reappear after 30 seconds, replace side touch panel.Err6 Failed H.V. Board Replace H.V. board.HOT • Open TCO (magnetron).• Blower motor inoperative.• Restricted air filter.• High ambient temperature.• Oven operated empty or with light loads.• Broken or loose wire.• H.V. board inoperative.Door Door Interlock Primary Switch • Verify latch mechanism moves freely on door.• Verify J1 connector on display board is properly seated.• Test interlock switch assembly and perform door adjustment if necessary.• Replace interlock switch assembly.