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Electrical Check: Electrovalves

  1. Partially disconnect top wires (82A, 82B, and 82C) to each electrovalve without breaking electrical contact. Connect voltmeter to ground and to exposed terminal.
  2. Voltage for each wire should be equal to battery voltage. If not, check problem wire for shorts. Disconnect bottom wire (82, 83, or 84) to electrovalve being tested. Connect a jumper wire in place of it on electrovalve.
  3. Ground other end of jumper wire. There should be a "clicking" sound from electrovalve. If not, disconnect other wire from electrovalve.
  4. Connect leads of ohmmeter to terminals on electrovalve. Resistance should be about 40 ohms. If resistance is infinity or close to it, replace electrovalve.
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