I have a tempstar furnace with a honeywell smartvalve system. The ignitor will not get red hot to light the furnace.
I replaced the thermocouple/ignitor with an equivalent one (Honeywell Q3400A1040 Replacement Ignitor) and it still did not light.
Then I suspected a gas supply problem. When I turn the valve to On, I heard no gas coming through. So, I ordered a replacement euivalent (Honeywell SV9500M 2682 Gas Valve). I can now hear the gas come through when it is turned on. But, even so, the ignitor doesn't light. Any advise would he appreciated...