I took motor apart and now the shaft has approx. 1 inch end play!I've look at the diagram of the reddy heater R115c but i don't see anything that would prevent the shaft from doing this
Heating & Cooling - Reddy - HEATER R115 115,000-BTU PORTABLE KEROSENE FORCED AIR HEATER
Answers & Comments
There should be less than an1/8 of end play, replace the motor