View Full Version : ESPAR issues, continued

08-10-2013, 06:23 PM
2003 passenger van, 147,000 miles

One of these days I will get the ESPAR to work. After reading many helpful posts on the subject, I have done some trouble-shooting, it appears the ESPAR is firing properly (the 1" water hoses attached to the unit get quite hot when it is running). But the hot water does not appear to circulate. Perhaps the circulating pump is not running... any way to check it in-place (would hope to avoid draining the coolant unless the pump needs replacing). Thanks for any advice...

Boz Staggs
08-11-2013, 02:41 AM
Mine did the same and it was a bad pump. It was replaced with a brushless Bosch model.