New Bunk heater issue
12-09-2022, (Subject: New Bunk heater issue ) 
Post: #6
RE: New Bunk heater issue
(12-08-2022 )Trey7981 Wrote:  My bunk heater will not stay running. I just bought a new unit and installed it today. The heater will fire run for about a minute then turn off. I have a 2017 prostar isx15. I did read something about coolant valves but I don't see any under the bunk cab or hood. Oh and yes this is a espar d5ws hydronic heater attached to the epu system.

If a diesel unit, it could be air in the fuel line. It may take a dozen or more attempts to fire the unit to purge any and all air out.


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RE: New Bunk heater issue - Waterloo - 12-09-2022



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