JohnR

I'm going to check if there is a 24V on the solenoid when defrost mode is on. If there is 24V that means the board is working and the solenoid is stuck? So I'll try unplugging and replugging the 24V and hear if it moves? if not i'll help it with a wooden stick and hear if it moves. Right? Download Attachment: Board.jpg 821.67 KB

So I waited about 5hrs for everything to melt. I turned off power from the main circuit break to everything. I turned it back on now and i only put the thermostat a few degrees more than the ambient temperature to be sure its only heat not emergency heat. It works perfectly now... I got an infrared thermometer. Ambient is 16C (61F) , thinner hose is 24C (75F) and wider hose is 60C (140F). I also checked the 3 way valve outside and 2 were cool (outside coil and compressor side) and the one going into the house very hot. I think it's just the defrost board. I could get the entire kit for 200$ and replace it my self... but I need to figure out if that is the problem. Download Attachment: Photo 2013-10-24 12 29 55 PM.jpg 234.67?KB Download Attachment: After heating.jpg 230.02 KB

Thank you. What bothers me is that it ran for the first 2 days I switched the system to heating. I was getting 50C (122F) till the house warmed up. So it could be the reversing valve getting stuck but how come it worked for a few days before... hmmm Ill start getting quotes on new systems...

Hello, I have a Lennox HP19 system that is around 15 years old. The compressor died 5 years ago and it was replaced. Last year this same issue started happening at the end of winter and we never fixed it. In summer it cools perfectly and uses minimal electricity. I've washed, cleaned everything and replaced the filters. First day of winter it worked perfectly (first time I switch it from cooling to heating). Today it froze again... I have two questions. 1) Is it worth repairing or buying a new system? since it is old. 2) What could the problem be? Thank you in-advance You can find the full resolution photos https://www.dropbox.com/sh/nbt4z0m9t23smq6/kCpbLT5hQ9 Click to Enlarge 50.73 KB Click to Enlarge 65.95 KB Download Attachment: Photo 2013-10-24 10 25 00 AM.jpg 163.07?KB Download Attachment: Photo 2013-10-24 10 25 09 AM.jpg 220.2?KB