Minimax 100 pilot

Reply

  #1  
Old 05-31-09, 04:01 AM
Member
Thread Starter
Join Date: May 2009
Posts: 7
Minimax 100 pilot

I have a minimax 100 heater a few years old. It worked ok yesterday until I turned it off. Today the pilot will not stay lit.
Can this be a thermocouple problem. The pilot flame looks good until I let the pilot push button on the valve up. Is there any place to find instruction on how to dissassemble this heater in case I have to replace the pilot. Thanks for any help.
 
Sponsored Links
  #2  
Old 05-31-09, 06:09 AM
todrut's Avatar
Member
Join Date: Jun 2007
Location: USA
Posts: 1,212
It sounds like the pilot generator, have you tested mv?
 
  #3  
Old 05-31-09, 07:58 AM
Member
Thread Starter
Join Date: May 2009
Posts: 7
No. Would I just unhook one screw term and put the meter between the empty term and the wire. Then I have to light the pilot and check the meter while holding down the pilot button. Is that right. I don't see how I could get in there to change it. I guess you have to take the burner and manifold out. Thanks for your help.
 
  #4  
Old 05-31-09, 09:42 AM
todrut's Avatar
Member
Join Date: Jun 2007
Location: USA
Posts: 1,212
while holding the pilot button and pilot lit test to 2 leads coming from pilot generator. Yes the whole burner tray would slide out to replace.
 
  #5  
Old 05-31-09, 09:57 AM
Member
Thread Starter
Join Date: May 2009
Posts: 7
Thanks. I will go check it.
 
  #6  
Old 05-31-09, 01:59 PM
Member
Thread Starter
Join Date: May 2009
Posts: 7
No good. I got the pilot to stay on for a little while, but the burner would not come on. It is a few years old and very rusty. I can not see how to get it apart. What is a good heater about the same size that works well. Thanks.
 
  #7  
Old 05-31-09, 05:06 PM
Member
Thread Starter
Join Date: May 2009
Posts: 7
Ok. If I push the toggle switch to on, and turn the thermostat all the way off, I can get the pilot to light and stay on when I rotate the knob from pilot to on. As soon as I turn the thermostat a little hit from low it clicks and the pilot goes out. When the therm turns on I guess it would complete the circuit, but I don't even have the water pump on yet, so the flow switch should be off. Any idea. Thanks.
 
  #8  
Old 05-31-09, 05:08 PM
todrut's Avatar
Member
Join Date: Jun 2007
Location: USA
Posts: 1,212
If you're not getting a minimum 400mv then you need to replace generator. It will keep pilot light lit with a small amount of mv but if not enough it will not open gas valve.
 
  #9  
Old 05-31-09, 05:12 PM
Member
Thread Starter
Join Date: May 2009
Posts: 7
Thank you. Would that cause the pilot to go out when the thermostat is turned on also.
 
  #10  
Old 06-01-09, 06:10 PM
todrut's Avatar
Member
Join Date: Jun 2007
Location: USA
Posts: 1,212
yes it can, it could be putting out just enough to keep pilot going till the valve tries to open reducing the mv to extinguish the pilot.
 
  #11  
Old 06-02-09, 05:11 AM
Member
Thread Starter
Join Date: May 2009
Posts: 7
Thanks for all of your help. I trid to take the burner tray out and the whole thing fell apart. Rusted. Time to buy a new one. I did see a lot of carbon built up on the generator so you were right.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes
'