Circulating block heater install ???

Philip d · Nov 21, 2021

My Dad put one on our 3505 MF a few years before he passed away. 1800w and it always worked great. The neutral wire let go in far enough I couldnt repair it so we bought a replacement pump. Its exactly the same as the old one and I installed it this afternoon,just wondering if the coolant lines were all hot and I had nice hot air out of the cab heater if thats indication enough its well bled out and not air locked therefore making it safe to plug it in?

Bob Bancroft · Nov 21, 2021

I ruined a couple new heaters like that. So I would only believe it was bled if I took the hose off the top and knew the tank was full.

Philip d · Nov 21, 2021

Ok good to know thank you,the instructions said run for an hour then drive at least 20mi before plugging it in maybe it might not hurt.

Billy Shafer · Nov 21, 2021

Just crack open the outlet hose to let it bleed. Then tighten the hose. Running the engine will do the same thing. To get the air out. Just be sure to check the level after it cools off.

Circulating block heater install ???

Philip d

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Bob Bancroft

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Philip d

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Billy Shafer

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