01-02-2017, 09:11 PM
Billy,
If you have the three zone pumps lined up facing out to the side of the coach, those do not self prime. If they loose prime, they can be running but not pumping hot coolant to the zone. To prime them, have heater tank lipping full, zone pump running, connect a radiator pressure tester to the radiator filler neck and pressurize it to 15 lbs.
You can send me a picture of your pumps if you like and you can call me Tuesday during the day and I will be glad to assist you sorting this out.
Rudy 7 one 3 8 one 8 3234 or jrlegett at gmail.com
If you have the three zone pumps lined up facing out to the side of the coach, those do not self prime. If they loose prime, they can be running but not pumping hot coolant to the zone. To prime them, have heater tank lipping full, zone pump running, connect a radiator pressure tester to the radiator filler neck and pressurize it to 15 lbs.
You can send me a picture of your pumps if you like and you can call me Tuesday during the day and I will be glad to assist you sorting this out.
Rudy 7 one 3 8 one 8 3234 or jrlegett at gmail.com
Rudy Legett
2003 Foretravel U320 4010
ISM11 450 hp Allison 4000R
Factory Authorized Aqua Hot Repair Center
Southeast Texas Area