Hello all
Been working on getting my restored Harrison Fresh Air Heater and restored Ranco valve going in my ‘50 Truck

It is freshly restored with a new heater core and 12v motor; additionally I changed the 160 degree thermostat to a 195 for winter
Everything is running correct I think
During my swap of the thermostats today, I disconnected the heater lines to make sure I had no clogs and ran the hose through it
First through the Ranco to the heater core; I adjusted the knob on the Ranco to allow more flow and it worked
Then I disconnected the Ranco valve and ran from the heater inlet to the outlet hose (going to the water pump)
Both tests were good and no clogs
Buttoned everything up and went for drive
At all speeds, low, med, and high, no hot or even warm air
Got home and checked the heater hoses
Hot going on from the thermostat housing and Ranco and hot coming out of the heater outlet to the water pump

The motor is spinning counter clockwise which should be drawing hot air from the heater core

Any thoughts are appreciated
Ranco
heater hose
Restored Heater

Last edited by Suburban Lou; 11/29/2020 1:14 AM. Reason: Photos

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