HVAC compressor on with heat

Reply #15 – July 06, 2009, 10:34:12 AM

I have solve the problem on my t-bird by replacing relay in ventilator control module. The old one have welded contacts- the AC system were switch on all time during run. The current in the circuit is quite large for this small relay . Something like this http://www.brownbear.ru/goods/8711.html
It is necessary to find strong relay, rated 20+A. I have take from old security system board.