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Bus Discussion => Bus Topics ( click here for quick start! ) => Topic started by: 5B Steve on January 23, 2014, 02:40:39 PM

Title: Block Heater noise (Buzzing sound)
Post by: 5B Steve on January 23, 2014, 02:40:39 PM

  I just noticed this noise, it's never done this. The sound is coming from the left thermostat. Unpluged it and the

   sound stopped. What's going on here?

   Steve 5B.......
Title: Re: Block Heater noise (Buzzing sound)
Post by: wg4t50 on January 23, 2014, 03:24:52 PM
Normal sound for a water jacket heater, sounds like coffee perking.
Being in the emergency generator business, we have many/hundreds of units with the block heater and every so often we get a call reporting a strange noise comng from the generator described as a coffee pot sound, you just have to laugh some times.
Dave M
Title: Re: Block Heater noise (Buzzing sound)
Post by: gus on January 23, 2014, 03:27:02 PM
Both my bus and Cummins Dodge PU heaters do this, normal.
Title: Re: Block Heater noise (Buzzing sound)
Post by: Ed Hackenbruch on January 24, 2014, 05:02:22 AM
That is how i make sure mine is working. Plug it in and then go listen for it to come on.
Title: Re: Block Heater noise (Buzzing sound)
Post by: 5B Steve on January 24, 2014, 06:41:32 AM


  Dave, Gus, Ed, thanks for that info.


  Steve 5B.....
Title: Re: Block Heater noise (Buzzing sound)
Post by: luvrbus on January 24, 2014, 06:50:48 AM
They really don't buzz till they get a little build up on the elements I have noticed that when I install the new ones 
Title: Re: Block Heater noise (Buzzing sound)
Post by: georgemci102a2 on January 24, 2014, 03:55:28 PM
 Can we leave the block heater plugged in for an extended period of time,like a month?  thx George
Title: Re: Block Heater noise (Buzzing sound)
Post by: luvrbus on January 24, 2014, 03:58:23 PM
I wouldn't recommend it on the PC board a guy had his Prevost catch fire from a block heater
Title: Re: Block Heater noise (Buzzing sound)
Post by: georgemci102a2 on January 24, 2014, 04:01:43 PM
Mine is a straight plug in to the block,is that ok? thx George
Title: Re: Block Heater noise (Buzzing sound)
Post by: Lin on January 24, 2014, 04:34:29 PM
George, If you are saying that the block heater has a cord that you just plug into a socket, that is pretty standard.  I have a portable timer that I use with it since I am likely to forget to unplug it.
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