[A/S] Re: Intermittent furnace fault

["nickcrowhurst <NickandSandra@xxxxxxxxxxx>" <NickandSandra@xxxxxxxxxxx>]

I forgot to add that I fitted a new battery to ensure the blower was 
running fast enough to trip the sail switch. I have 13.4 volts at the 
battery terminals, and 124 v on the AC supply. The blower starts 7 
seconds after the thermostat calls for heat, and another 17 seconds 
later, the ignition (usually) ignites the gas. I therefore assume the 
time delay relay is okay, so I have not fitted my spare new one. The 
service dealer overhauled the furnace, and on the test bed it 
functioned correctly, so no diagnosis was attempted.I have e-mailed 
Suburban for advice, but have not yet had a reply. Nick