Battery Heater Blanket Test

1. Remove the battery heater blanket from the battery.
2. Clean the battery heater blanket with baking soda solution and wipe dry.
3. Inspect blanket for cuts, abrasion or other damage. If heater is damaged replace.
4. Position the heater flat and re-connect the blanket heater to the vehicles electrical system.
5. Connect the 110 volt AC power cord to 110 volt source for a maximum of 3 minutes.
6. Disconnect the 110 volt power cord.
7. Immediately feel the heater blanket on the inside, it should be warm to the touch. If warm the heater is OK, if not OK proceed.
8. Disconnect the heater blanket from the vehicles electrical system. Using an Ohmmeter, connect the leads across the two wire terminals coming from the heater blanket. A resistance value of 220 to 280 ohms should be present. If not replace the blanket. If OK proceed.
9. Ensure that the 110 volt AC power cord is suppling voltage to the heater blanket. If OK replace the heater blanket. If not verify the 110 volt AC power from another source. Inspect the power cord for damage and replace if necessary.