GE Profile DPVH890EJ Technical Service Manual

Also see for Profile DPVH890EJ: Owner's manual and installation instructions Dimensions and installation information Installation information

– 22 –TriacThe triac is mounted beneath the power boardsupport bracket located under the top panel.Note: The replacement triac comes with heatsink.To remove the triac:Remove the control and top panels. (1. See ControlPanel and Top Panel.)Note the position of the vapor shields, then2.remove the left-side Phillips-head screw andplace the power board vapor shield over theright side of the cabinet.Remove the Phillips-head screw that attaches3.the front of the steam generator relay to thesupport bracket. Pull the relay out from thesupport bracket.Mark and remove the three wires from the triac.4.Remove the 2 Phillips-head screws that attach5.the triac heatsink to the support bracket.MT1 – Orange wiresMT2 – Blue wireGate - Grey wireInner ElementInner Element Outer ElementVapor ShieldHeatsinkTriacMT1GateMT2Heater AssemblyWARNING: Sharp edges may be exposed whenservicing the dryer. Use caution to avoid injury.Wear Kevlar gloves or equivalent protection.The heater assembly is located behind the drum.It consists of inner and outer open-wire elements,each formed in a zigzag pattern fastened to a singlehousing. The inner element consists of 2 elementswired in parallel with each other and controlledby a relay on the power board. The outer elementis controlled by a triac attached underneath thesupport bracket.When energized, the outer element drawsapproximately 12.5 amps at 240 VAC. The outerelement has a resistance value of 19.2 Ω. Whenenergized, the 2 inner elements draw approximately12.5 amps at 240 VAC. The 2 inner elements have acombined resistance value of 19.2 Ω.To access the heater assembly, it is necessaryto remove the drum. (See Drum.) Lead wires canthen be removed from the elements, inlet safetythermostat, inlet control thermistor, and high limitthermostat. (See Component Locator Views.) Theheater assembly is attached to the cabinet with 4Phillips-head screws.(Continued Next Page)