parts, which helped me identify the parts on my G24M furnace. I als found my circuit/control board has the updated 6K07 control board. Rea through my Lennox G24M Installation Instructions and User's Informatio Manual to obtain a better understanding of the system and components Local dealer was willing to sell me a new control board for $260 and found them for $252 and $258 on the net. Decided to wait until I coul spend more time troubleshooting the system.
Finally had time today to troubleshoot my system. Removed panel, wif switched thermostat to "heat" and I found out a lot. 1. induction blower was working properly (thanks to Bubba I know it' name) 2. almost immediately the clicking started (nothing should happen fo the first 45 seconds, except for the pressure switch to send power t board ignition control, when board ignition control receives powe signal from pressure switch it starts a 45 second delay, at the end o delay the board ignition control will send power to spark ignitor an gas valve solenoid) 3. clicking wasn't spark ignitors, but was the gas valve solenoid, ga valve shouldn't receive power for 45 seconds 4. turned off all power, turned gas valve manual control knob to off removed ignitor/sensor/tube assembly to confirm ignitor type, it ha two prongs at one end (spark ignition) and one prong at other en (flame sensor?) 5. reinstalled ignitor/sensor/tube assembly and turned gas knob on 6. turned power back "on" and called for "heat" again, gas valv started clicking again within 2 seconds after blower started 7. removed vacuum hose from blower and clicking stopped, which prove diaphragm pressure switch was working (considered turning off power an ohming through switch while manualy applying vac/press into tube bu decided my wife would think I was nuts) 8. reconnected vacuum hose to blower, diaphragm pressure switch sen power to control board ignition control circuit, which sent power t gas valve again without waiting the required 45 seconds 9. realized something within the control board ignition control circui wasn't working properly, turned off power and gas valve 10. searched numerous forums looking for G24M and 65K07 information 11. one mentioned replacing or cutting off black cover from the ga control relay and cleaning the contacts, which is on the control boar next to the 15 pin connector 12. another one mentioned checking ground wire connections 13. I decided to remove and reseat all plugs and wire connectors o board 14. I then tilted board away from top two plastic retainers an inspected the back of it for burnt/black spots 15. Lastly I "lightly" tapped on board relays 16. turned power and gas knob "on" 17. called for heat, induction blower started, approximately 45 second later the gas valve opened and spark ignitor lit 18. selected cool, compressor came on and a/c worked 19. selected heat, furnace worked 20. selected off and selected fan "on", fan worked 21. selected heat and continued to play with thermostat settings t turn off need for heat and then to call for heat 22. furnance continued to work
Hopefully my system will continue to work. Considering the low cost o some replacement parts, I've decided it would be wise to keep some o hand. I'm planning to order the following: Furnace - flame rollout sw, primary and secondary switchs, pressure sw blower motor capacitor Compressor - comp time delay 1 minute, 24v double pole 30 amp relay capacitors 35W comp and 5W fan 440V
Thanks for all y'alls help with fixing my system, tripnt