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View Full Version : time fan relay


johanchalco
10-04-2005, 06:29 PM
what are the symptoms to know if the time fan relay is bad. How can you know for sure
glitho
10-04-2005, 06:47 PM
fan doesnt come on is one clue.......another way is to see if the fan is still good by hooking it to direct power
johanchalco
10-04-2005, 06:55 PM
Originally posted by glitho
fan doesnt come on is one clue.......another way is to see if the fan is still good by hooking it to direct power
I had one that would start when i would start thermostat but b/c i had it in auto after it would shut off b/c it would reach desired temp. when the room temp. goes above temp i have in thermostat it won't start and it cause coil to freeze and outside unit
berad
10-04-2005, 08:57 PM
probably a digital stat that uses batteries to power the closing action of the relays. Most likely low batteries. Shows up most in summer since it is closing two relays. The batts have enough oomph to close the y but not the g contact. Put your meter on dc you should read 1.5 volts per battery. Example if you have three batteries you will read 4.5 volts dc since most are in series. If in paralell than it's just 1.5 total. Once the batteries go below 1.3 vdc this stuff happens.