jhm Posted March 22, 2009 Share Posted March 22, 2009 Here's some useful info for anyone with a Spal FAN-PWM-V3 fan controller that's frequently throwing error codes 2 and/or 4. I was having this exact problem with mine, so I returned it to Spal for bench-testing and troubleshooting. Turns out the controller's diagnostics are quite sensitive, and in my case, too sensitive for the current fluctuations from my battery being mounted in the hatch. The voltage/current fluctuations were causing my controller to continuously throw error codes 2 and 4 after only a short drive. The Spal technician was familiar with this particular issue, particularly in vehicles with trunk-mounted batteries, and knew the exact fix for it. If you're having similar problems, send it to Todd Holcomb in Spal Technical Assistance and he'll hook you up. Kudos to Spal and Todd Holcomb for superior customer service! Quote Link to comment Share on other sites More sharing options...
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