Hydroflame - mulfunction

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Hydroflame - mulfunction

Home > Discussion Forum > Mechanic's Corner (general)

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All Messages in Thread	Author	Date
Hydroflame - mulfunction	Edward	7-21-06
We recently took a trip to the mountains and had a problem with the heating furnace. The model is FA7920 - 19500BTU. I checked out the furnace on both 12 volt and 110 volts and it worked fine at our elevation of 4400 ft. We went up to 10,800 ft. and the pilot light came on, the fan started up but the furnace would not kick on. I switched tanks and it came on momentarily and then just the fan stayed on. When we returned to 4400 ft. elevation I checked the furnace and it operated as usual on both current sources. I've had it at the higher altitude on several occasions and higher yet without any previous problems. Could it have developed a vapor lock or other normality because of the altitude change? Why would the pilot light come on without activating the furnace when it called for heat? I have an inline valve which I switched from tank to tank thinking one tank was empty but both were full of propane. Thanks in advance for any light you could shed on this problem.

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