Gas furnace blower short cycling

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Old 11-24-02, 11:16 AM
jwc1946
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Gas furnace blower short cycling

I have a Cambrian Furnace (Gas) Modle no AH - 130 serial no U3 - 179. The furnace appears to ignite but when it firsts comes on the blower short cycles. After the house gets up to temperature the blower short cycles again. Could sure use some ideas on this one???
 
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Old 11-24-02, 11:19 AM
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are the burners still on?

if the fan is cycling when it should not be, look at the fan limit switch, it tells the fan to come on and go off per bonnet temp. this may be a dial looking unit on the firewall above the gas valve, not real familiar with that unit.
 
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Old 11-24-02, 11:33 AM
jwc1946
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Funace blower short cycle

I think the furnace is still lit but so far every time I go down to watch it happen or go down as its happening the darn thing functions properly. Last year we replaced the timer switch but perhaps it failed all ready. This is a Canadian Made Unit but appears to be 0f a standard configuration. Thanks for the reply will continue to monitor the cycle of the unit so as to get a more detailed idea of what is happening.
 
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