<VV> gas heater problem

[FrankCB at aol.com]

Shaun,
    While I have no experience with Corvair gas  heaters, I do have some 
understanding of gas fired heating systems.  What  you describe sounds like a 
defective HIGH temp. safety switch that shuts down  the firing if a dangerously 
high temp is reached in the heater.  This is  NOT the thermostat, but a second 
switch that should activate at a higher temp  much like the one in my house 
furnace that shuts off the fuel supply when the  furnace plenum reaches a high 
temp.  Sounds like yours is activating at a  way-too-low temp.
    Let us know what you find.
    Frank "wish I had your gas heater"  Burkhard
 
In a message dated 1/30/2008 11:19:24 PM Eastern Standard Time,  
shaun_mcgarvey at shaw.ca writes:

Any  Gurus of the gas heater out there?
I've had an intermittent problem where  the unit starts, fires up, cycles 
through one cycle of heat then blows  cold. Sometimes I can turn it off, then 
on again and it will make another  heat cycle before blowing cold again. 
Sometimes turning it off and on  won't make it heat.
I checked everything I could and everything works. The  thermostat works 
perfectly, the microswitch works, there's power to the  fuel solenoid and the 
coil, so I thought I'd ground the neg side of the  coil to see if it fired, 
and poof, it works and makes one heat cycle! So I  know the points are 
working, but it seems they need a kickstart.
Is  there a component on the points board that will make this happen? Maybe  
the condensor?
I'm good with electrical, but the moment you step over  to electronic, I'm 
lost. That's one reason why I drive a  Corvair.

yea, Vairily ... Shaun 







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