Snydergeneral model 50A50-110 no power, no response

Old 01-23-12, 11:38 AM
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Snydergeneral model 50A50-110 no power, no response

Furnace was working fine. I replaced thermostat with digital one. I hooked up blue wire I don't think I was supposed to. Hooked up the other green, white, red, and yellow. Furnace doesn't come on now. Checked for 110 voltage. No diagnostic light at all. Is there a reset, lockout switch, fuse, or other safety device. Any suggestions? Thanks.
Old 01-23-12, 12:35 PM
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CB on the 24V transformer hope? no leds led on the stat...try to put the fan to ON from the stat.not running..? you lost 24Vs so were did you hook the BLUE wire to on the subbase..if it didn't say C on the screw down...? did you see where the blue was in the furnace before hooking it up? did you wire in the stat with power up on the furnace?
Old 01-24-12, 03:27 PM
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check for a low voltage fuse on the control board or in that vicinity.
Old 01-24-12, 05:15 PM
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If the furnace does not have a low voltage fuse or low voltage circuit breaker you will probably need to replace the 24VAC transformer.

Do you have a meter?

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