Discussion:
Electric fan not working

Hello all. I have a problem with forklift linde h14t 391 series. The problem is that after switching on the ignition and starting the engine, the fan does not rotate. The voltage on pin 1 is correct, the ground on pin 2 is also correct. The voltage on the 4 pin after turning on the ignition is correct. Continuity on the yellow and brown-blue wires to the lhc controller is correct. After connecting to the +1 and 4 pins and to the - pin 2, the fan rotates at maximum speed. Replaced: fan, coolant temperature sensor, lhc controller, ignition switch. The temperature on the computer is rising properly. Is there anything else I can check? Please help. I already run out of ideas.
  • Posted 1 Feb 2022 06:01
  • By Daniel_Dengee
  • joined 7 Dec'21 - 5 messages
  • Poland
janu122 (at) gmail (dot) com
Showing items 1 - 2 of 2 results.
Try adjusting the bell housing sensor, I had one doing the same thing and found that the jam nut had backed off, of the sensor and it couldn't send rpm signal to the lhc for the fan to come on while running, adjust it to where feel the sensor hit the flywheel and then back it out a few turns
  • Posted 23 Jul 2023 04:28
  • By Adam_Nance
  • joined 13 Jul'23 - 4 messages
  • Georgia, United States
Adam Nance
Did you try replacing the bell housing sensor? Had one with a similar issue and replaced the bell housing sensor and it started working properly.
  • Posted 13 Jul 2023 00:53
  • By Adam_Nance
  • joined 13 Jul'23 - 4 messages
  • Georgia, United States
Adam Nance

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