My central heater for my condo started blowing cold air. I had a guy come out and we went on the roof and he said the burners weren't getting a spark. He tested the igniter with his multimeter and determined that the igniter was defective. He said that he could not find the part since the heater is so old (about 35 years). So he gave me a quote for a whole new unit at about $6,500. Anyhow I went online and found the part for about $75. When I got it, I installed it but still there is no spark. With the heater running I tested the voltage of the igniter. Here is the igniter I have although the replacement even though it has the same model number does not have the spade connectors. It just has two wires. [url]https://controlscentral.com/eCatalog/tabid/63/CategoryID/767/Category/Boiler-Burner-Controls-Ignition-Controls/ProductID/304331/Default.aspx?price=0,100&m=White-Rodgers,%20Inc[/url]. I tested voltage from both of the two points to ground and measured only about 5-6 volts. It should be 25 volts right? Any idea what I'm doing wrong or what the problem would be? Thanks! Don

Hello All! I have a Rheem Furnace model RGPH-07EAUER, serial # DF5D302 F1295 5487 Last week I noticed the house was getting pretty cool, and also noticed the heat wasn't coming on as often as it usually does. I went down to check the furnace and noticed the burners were not lit but the IDM and blower were running. I turned off the unit and followed the directions that were provided from Rheem for troubleshooting. The step that seemed to always fail was the step after the Main Burner Lights up. The step is labeled, Main Burner Remains Powered and Lit. All the burners would always go out between 4 and 10 seconds. Directions recommended I clean the Flame Sensor, but that did not work. So I ordered a new one, and yet the same problem. The burners will never stay lit longer than 4-10 seconds, and they will try this for 4 times before locking the system down. I've read that the flame sensor should always have a voltage around 90-100 VAC. Yet, when I test it from the flame sensor to ground (metal frame since I have no idea where the actual ground is), I get only 5 VAC, and 5.6 VAC when the burners are lit. I didn't think the orange LED was ever blinking, but to my surprise it was. If I get almost to eye level with it, I can see a very faint and subtle blinking. When the burners do light up, the orange LED will blink twice, though this time very brightly, then back to the regular faint blinking that you can only see if you get right up to it. Could the 5 VAC I get when reading this connection be causing this faint illumination or is this normal? If so, then I'm curious why it is able to blink those two times very brightly when the burners are lit. During the reading it never goes over 5 or 6 VAC, even when the LED blinks brightly those two times. Looking forward to any suggestions...