New Bunk heater issue - Printable Version +- Rawze.com: Rawze's ISX Technical Discussion and more (http://rawze.com/forums) +-- Forum: Big Truck Technical Discussion... (/forumdisplay.php?fid=1) +--- Forum: International Trucks Related Help (/forumdisplay.php?fid=69) +--- Thread: New Bunk heater issue (/showthread.php?tid=8620) Pages: 1 2 |
RE: New Bunk heater issue - BrandonOlsen - 12-12-2022 (12-12-2022 )Waterloo Wrote:(12-12-2022 )BrandonOlsen Wrote: I feel your pain. I have a espar heater in my truck that doesn’t work (D2) Fan turns on for maybe 5 minutes and shuts off. Pump doesn’t attempt to run or click at all. Then get the red light with 52 code. It’s never worked since I owned the truck and the previous owner never used it. They only idled. Hope you can have a little better luck than I usually get. Good luck! Thank you sir! Should I order a new pump for it as well? Or would one of those things cause the pump to click even one time ? Never had anything to do with an espar heater before so this is all new to me! RE: New Bunk heater issue - Waterloo - 12-12-2022 (12-12-2022 )BrandonOlsen Wrote: Thank you sir! If the fuel pump is clicking it is working. If there is no sign the pump is working, test to see if there is voltage to the plug at the harness, where it plugs into the pump. If there is power getting to the pump, and no clicking sound, it more than likely is burned up. If the heater has been non functioning for quite awhile, I would purchase a new pump. Nothing worse than wanting heat only to have your questionable at best original pump fail. The pump is a piston setup, like a single cylinder moped, that is the clicking sound, the little piston moving back and forth, vs a centrifugal pump that uses an impeller. RE: New Bunk heater issue - Nilao - 12-14-2022 It will click even with plugged filters. If it isn't clicking you can use a 9v battery and jumper test leads to touch the terminals. Each time you touch it it should click as it uses 12 volt pulses to operate it. A 9v battery is low voltage but also low amp output to not burn it up while testing it. |